WO2011032537A1 - Inhibierung des schossens und blühens einer zuckerrübenpflanze - Google Patents
Inhibierung des schossens und blühens einer zuckerrübenpflanze Download PDFInfo
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- WO2011032537A1 WO2011032537A1 PCT/DE2010/001081 DE2010001081W WO2011032537A1 WO 2011032537 A1 WO2011032537 A1 WO 2011032537A1 DE 2010001081 W DE2010001081 W DE 2010001081W WO 2011032537 A1 WO2011032537 A1 WO 2011032537A1
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
- C12N15/79—Vectors or expression systems specially adapted for eukaryotic hosts
- C12N15/82—Vectors or expression systems specially adapted for eukaryotic hosts for plant cells, e.g. plant artificial chromosomes (PACs)
- C12N15/8241—Phenotypically and genetically modified plants via recombinant DNA technology
- C12N15/8261—Phenotypically and genetically modified plants via recombinant DNA technology with agronomic (input) traits, e.g. crop yield
- C12N15/8262—Phenotypically and genetically modified plants via recombinant DNA technology with agronomic (input) traits, e.g. crop yield involving plant development
- C12N15/827—Flower development or morphology, e.g. flowering promoting factor [FPF]
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/415—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from plants
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
- C12N15/79—Vectors or expression systems specially adapted for eukaryotic hosts
- C12N15/82—Vectors or expression systems specially adapted for eukaryotic hosts for plant cells, e.g. plant artificial chromosomes (PACs)
- C12N15/8216—Methods for controlling, regulating or enhancing expression of transgenes in plant cells
- C12N15/8218—Antisense, co-suppression, viral induced gene silencing [VIGS], post-transcriptional induced gene silencing [PTGS]
Definitions
- the present invention relates to an isolated nucleic acid for inhibiting the shoot and flowering of a sugar beet plant and its use, a protein, a process for producing a transgenic sugar beet plant in which the shoot and flowering after vulcanization is inhibited, vectors or mobile genetic elements, and a transgenic sugar beet in which the shoot and flowering is inhibited after varnish, and seeds and parts thereof.
- molecular biological methods it is possible to genetically modify crops, thereby changing their properties and improving them.
- An important feature for cultivation and exploitation of two-year-old plants such as the sugarbeet (Beta vulgaris) is that their shoots and subsequent flowering induction by a prolonged cold period, as occurs in temperate latitudes regularly in winter, needs. This change from the vegetative to the generative phase, caused by a persistent period of low temperatures, is called vemalization.
- the object is achieved by means of an isolated nucleic acid, wherein the nucleic acid comprises a nucleotide sequence which
- a) has a sequence or partial sequence of SEQ ID NO: 1-3, or
- b) is complementary to a sequence or partial sequence of SEQ ID NO: 1-3, or
- c) has a sequence or partial sequence of SEQ ID NO: 1-3 or a complementary sequence in the antisense direction, or
- d) is homologous to a sequence or partial sequence of SEQ ID NO: 1-3, or e) is at least 80% identical to a sequence or partial sequence of SEQ ID NO: 1-3, or
- f encodes a protein or a part of the protein having the amino acid sequence of SEQ ID NO: 4, or
- the nucleic acid according to the invention can be used for this purpose, for example by means of the RNAi approach or miRNA approach (Fire, A, Xu, S, Montgomery, M, Kostas, S, Driver, S, Melo, C (1998), Potent and specific genetic interference by double-stranded RNA in Caenorhabditis elegans, Nature 391 (6669): 806-811) to inhibit the shooting and flowering of sugar beets, primarily to completely prevent the shooting and flowering, if possible, eg by inhibiting genes encoding flower inductors such as FT, FUL, Co or VIN3.
- the nucleic acid according to the invention is distinguished in particular by the fact that it can be used to produce transgenic plants, in particular sugar beet, having particular properties: it can preferably be used, for example, for the following purposes or with the following advantages:
- the sugar beet is a biennial plant. After overwintering and subsequent vernalization, the sugar beet usually blossoms in the second year.
- the nucleic acid according to the invention for example a sequence used in an RNAi or microRNA approach according to SEQ ID No: 5 to SEQ ID No: 7 or another sequence or partial sequence according to the invention, genes can be inhibited and the effects of vernalization inhibited or be completely prevented.
- RNAi or micro (mi) RNA methods already mentioned and familiar to the person skilled in the art
- SEQ ID No: 5 to SEQ ID No: 7 can be introduced into a sugar beet cell and expressed there by means of molecular biological techniques known to those skilled in the art in antisense orientation under the control of a suitable promoter.
- the shooting and flowering of the plant can be completely prevented.
- the beet seed can thus be exploited earlier, which ultimately leads to an extended vegetation period and thus to a higher biomass or a higher sugar yield.
- the beets can also be cultivated as so-called winter beets.
- sugar beet is grown in August, the turnip can already be harvested as lees in the following spring. This allows the farmer an additional crop rotation.
- prolonged cold spells after sowing on the field no longer lead to increased formation of pores. Even without prolonged cold snaps observed in previous sugar beet Schosser Guess can be prevented or at least significantly reduced.
- sugar beet cultivation normally takes place from April to October / November. Since not all harvested sugar beets can be processed at the same time, they must be stored or stored temporarily. During storage, eg in rents, large storage substance losses (sucrose losses) occur due to cleavage of the sucrose into glucose and fructose.
- the sowing and harvest dates can be varied so that the total harvest time (campaign) can be extended without harvest losses. This allows more sugar beets to be processed for a longer period without or with little loss of storage substance.
- sucgar beet or “sugar beet plant” is meant here a plant of the genus Beta vulgaris, e.g. Beta vulgaris ssp. vulgaris var. altissima (sugar beet, S.S.), Beta vulgaris ssp. maritima (Lake Mangold), Beta vurlgaris ssp. vulgaris var. vulgaris (chard), Beta vulgaris ssp. vulgaris var. conditiva (beetroot), Beta vulgaris ssp. vulgaris var. crassa / alba (fodder beet).
- Beta vulgaris ssp. vulgaris var. altissima sucgar beet, S.S.
- Beta vulgaris ssp. maritima Lake Mangold
- Beta vurlgaris ssp. vulgaris var. vulgaris chard
- Beta vulgaris ssp. vulgaris var. conditiva beetroot
- isolated nucleic acid is understood as meaning a nucleic acid dissolved out of its natural or original environment, and the term also encompasses a synthetically produced nucleic acid.
- inhibiting the shooting and flowering of a sugar beet plant is a reduction of the proportion of cropping and possibly flowering sugar beet plants in comparison to a not according to the invention modified sugar beet plant in a comparable development phase, especially in the second year after passing through a corresponding cold period, ie after
- the term includes a reduction in the proportion of coke to at most 80%, preferably at most 70%, 60%, 50%, 40%, 30%, 20% or 10%, more preferably at most 5%, 4%, 3 %, 2%, 1%, 0.5%, 0.4%, 0.3%, 0.2% or 0.1% of the proportion by weight of control plants not modified according to the invention.
- Control plants are preferably plants of the same variety However, which are not changed according to the present invention, and for example, have a Schosse- ranteil of a maximum of 0.01%.
- ligation or "complete ligation” of the shoot and flowering, an inhibition of at least 99%, preferably at least 99.5%, more preferably at least 99.8% or at least 99.9%, ie a reduction of the Schosseranteils to at most 1%, at most 0.5%, at most 0.2% or at most 0.1%, in particular in the second year after vernalization, in comparison to a sugar beet plant not modified according to the invention, which for example has a shell fraction of not more than 0.01%.
- inhibiting / inhibiting the shoot and blooming includes the inhibition / inhibition of the shoot, whether or not flowering of the plant occurs.
- transgenic as used herein also encompasses the case where a native nucleic acid is introduced into the cell in a form, arrangement or amount in which the nucleic acid is not naturally present in the cell occurs.
- homology refers to matches or similarities in the nucleotide sequence of two nucleic acid molecules or amino acid sequence of two proteins or peptides.
- the presence of homology between two nucleic acids or proteins can be determined by placing one position in each sequence with the corresponding one Position in the other sequence compares and determines whether identical or similar residues are present
- Two identical sequences are homologous if there is a certain minimum of identical or similar nucleotides.
- Identity means that when comparing two sequences at equivalent positions, respectively Nucleotide or the same amino acid. If necessary, it may be necessary to take account of sequence gaps in order to produce the best possible alination of the comparison sequences.
- nucleotides / amino acids are non-identical Nu eotide / amino acids with the same or equivalent physicochemical properties.
- a nucleotide amino acid
- another nucleotide another amino acid
- physicochemical properties of an amino acid include hydrophobicity or charge.
- nucleic acids In connection with nucleic acids is also spoken of a similar nucleotide or a conservative exchange when a nucleotide in a codon is replaced by another in a coding sequence, but, for example, due to the degeneracy of the genetic code, the same Amino acid or a similar amino acid as in the comparison sequence of the encoded codon coded.
- nucleotide or amino acid exchange is a conservative exchange.
- nucleic acids is preferably of a minimum length of 60 nucleotides or base pairs, preferably a minimum length of 70, 80, 90, 100, 110, 120, 140, 160, 180, 200th , 250, 300, 350 or 400 nucleotides or base pairs, particularly preferably of the full length of the nucleic acids to be compared, for proteins / peptides of a minimum length of 20 amino acids, preferably a minimum length of 25, 30, 35, 40, 45, 50, 60, 80, 100, 150, 200, 250 or 300 amino acids, and most preferably from the full length of the amino acid sequences to be compared.
- the degree of similarity ("positive") or identity of two sequences can be determined, for example, with the aid of the computer program BLAST (SF Altschul et al. (1990), Basic Local Alignment search tool, J. Mol. Biol. 215: 403-410 Determination of homology depends on the length of the sequences being compared For the purposes of the present invention, homology between at least 70%, at least 75%, at least 80%, at least 85%, at least 90%, at least 95%, at least 97%, at least 98%, or at least 99% of nucleic acid sequences, the shorter of which comprises at least 100 nucleotides nucleotides are identical and / or similar ("identities" or "positive” according to BLAST), preferably identical With a sequence length of 50-99 nucleotides, with an identity or at least similarity of at least 80%, preferably at least 85%, 86 %, 87%, 88% or 89%, with a sequence length of 15-49 nucleotides with an identity or
- Hybridization or “hybridization” is understood to mean a process in which a single-stranded nucleic acid molecule attaches to a complementary nucleic acid strand, ie forms a base pair with it. Standard methods for hybridization are described, for example, in Sambrook et al. (Molecular Cloning, A laboratory manual, Cold Spring Harbor Laboratory Press, 3rd edition, 2001).
- the stringency of the hybridization conditions refers to hybridization conditions: high stringency is found when base pairing is difficult, low stringency when base pairing is facilitated, for example, the stringency of the hybridization conditions depends on the salt concentration and ionic strength, respectively In general, the stringency can be increased by increasing the temperature and / or lowering the salt content.
- Stringent hybridization conditions are to be understood as meaning those conditions in which hybridization occurs predominantly only between homologous nucleic acid molecules.
- the term “hybridization conditions” does not only refer to the conditions prevailing during the actual attachment of the nucleic acids but also to the conditions prevailing during the subsequent washing steps.
- Stringent hybridization conditions are, for example, conditions under which only those nucleic acid molecules predominantly hybridize, which are at least at least 70%, preferably at least 75%, at least 80%, at least 85%, at least 90% or at least 95% sequence identity. Examples of less stringent hybridization conditions are: hybridization in 4 ⁇ SSC at 37 ° C. and subsequent multiple washing in 1 ⁇ SSC at room temperature. Stringent hybridization conditions are, for example: hybridization in 4 ⁇ SSC at 65 ° C. and subsequent multiple washing in 0.1 ⁇ SSC at 65 ° C. for a total of about 1 hour.
- fragments or a "partial sequence" of a nucleic acid is here understood to mean a contiguous subsection of the nucleic acid, ie a sequence section consisting of successive nucleotides of the nucleic acid RNAi or miRNA approach can be used advantageously, wherein the sequence can be used for example in antisense ("antisense”) - direction.
- Antisense or “Antisinnorient- tion” of a nucleic acid sequence means here, for example, that a transcription of the DNA sequence leads to an mRNA whose nucleotide sequence is complementary to a natural (endogenous) mRNA, so that their translation is hindered or prevented by addition of the complementary RNA.
- An "antisense RNA” or “antisense RNA” is understood as meaning an RNA complementary to a particular mRNA or to certain other RNAs. Therefore, “antisense direction” or “antisense orientation” of an mRNA sequence means that the mRNA has a sequence which is complementary to an mRNA sequence whose translation can thus be hindered or prevented by attachment.
- Partial sequences which can be advantageously used in the context of the present invention, for example in antisense orientation are, for example, nucleic acids having a sequence according to SEQ ID NO: 5, 6 or 7. These partial sequences are sections of the nucleic acid according to the invention according to SEQ ID NO : 3. It can but also any other nucleic acids with sequences or partial sequences of SEQ ID 1-3, for example in Antisinnraum be used.
- a partial sequence of a nucleic acid comprises at least 15, preferably at least 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90 or at least 100 consecutive nucleotides, more preferably at least 150, 200, 250, 300, 350, 400 or 450 consecutive nucleotides.
- a part of a protein preferably comprises at least 5, preferably at least 10, 15, 20, 25, 30, 40 or 50, particularly preferably at least 60, 70, 80, 90 or at least 100 consecutive amino acids of SEQ ID NO: 4.
- sequence section of SEQ ID NO: 4 preferably comprises at least 50, 60, 70, 80 or 90, more preferably at least 100, 120, 150, 200 or 250 consecutive amino acids of SEQ ID NO: 4.
- the necessary or reasonable length of the partial sequence of the nucleic acid or of the protein or of the sequence section can be determined by one skilled in the art by means of its general skill and if necessary by carrying out routine experiments on the basis of the chosen approach and the intended effect, without any inventive step Activity would require.
- the nucleic acid according to the invention is preferably at least 85%, preferably at least 90%, 95%, 96%, 97%, 98% or 99%, particularly preferably at least 99.5%, 99.6%, 99.7%, 99, 8% or 99.9% identical to a sequence or partial sequence of SEQ ID NO: 1-3.
- the present invention relates to the use of one or more of the nucleic acids of the invention for inhibiting the shooting and flowering of a sugar beet plant.
- a nucleic acid according to the invention can be introduced, for example in antisense orientation, into a sugar beet plant, thereby ensuring an inhibition of the genes responsible for the induction of battling and flowering.
- Methods which are suitable for introducing a nucleic acid according to the invention into a sugar beet cell are known in principle to the person skilled in the art and include, for example, Agrobacterium-mediated transformation.
- the introduction of a nucleic acid in antisense orientation into a plant is only one of the methods known to those skilled in the art for the inhibition or suppression of gene activity.
- novel linoleic acids are advantageously useful in other processes or mechanisms that can inhibit shoot / bloom suppression.
- nucleic acids according to the invention can also be used as a probe for determining further factors, genes or gene products, with the aid of which the flowering and shooting of sugar beet plants can be inhibited and / or suppressed.
- the present invention relates to a protein having an amino acid sequence of SEQ ID NO: 4 or a protein having an amino acid sequence which has a sequence section of SEQ ID NO: 4, preferably at least 50, 60, 70, 80 or 90, preferably at least 100, 120, 150, 200 or at least 250 consecutive amino acids of SEQ ID NO: 4, or a protein from Beta vularis which is homologous to the protein having the amino acid sequence or a sequence segment of SEQ ID NO: 4.
- the protein or any part thereof, or the corresponding amino acid sequences can be used, for example, as a probe at the amino acid level for determining further factors, genes or gene products, with the aid of which the flowering and shooting of sugar beet plants can be inhibited and / or suppressed ,
- the present invention also relates to a method of producing a transgenic sugar beet plant, comprising the steps of (a) transforming a sugar beet cell with one or more nucleic acids of the invention and (b) obtaining a sugar beet plant from the transformed sugar beet cell.
- the transformation of the sugar beet cell can be carried out, for example, by means of known vectors, e.g. a Ti plasmid, and is known in the art in principle.
- the nucleic acids according to the invention can advantageously be placed under the control of a suitable promoter in such a vector.
- the invention also relates to a vector or a mobile genetic element which comprises one or more nucleic acids according to the invention.
- Vectors and mobile genetic elements are known in the art and include, for example, plasmids such as the Ti plasmid.
- the vector or the mobile genetic element can advantageously contain control elements, for example a promoter.
- the invention also relates to a sugar beet plant which comprises one or more nucleic acids according to the invention, preferably under the control of a suitable promoter, and in which the shoot and flowering is inhibited, and seeds and / or parts of a sugar beet plant according to the invention, with one or more several nucleic acids according to the invention are transformed.
- FIG. 1 Schematic comparison (BLAST) of the respective positions of the PHD, FNIII and VID domains in BvVIL, AtVILl and AtVIN3. Also indicated is the proportion of identical or similar nucleotides ("identities" / "positive”, in%).
- VIN3_Ath AtVIN3
- VILl_Ath AtVILl
- VIL_Bv BvVIL
- Fig. 2 Lap and blight resistant sugar beet. Left: Boss-resistant BvVIL transformant WB4-7 (in the picture on the left) in comparison with the sweeping control (in the image on the right); Right:
- Fig. 3 Schematic representation of the structure of the RNAi cassette used.
- FIG. 4-6 Schematic representation of the fragments Sal-SMA-775> 1077 (FIG. 4), Sal-SMA-779> 1197 (FIG. 5) and Sal-SMA-971> used for generating the pRNAi vector 1466 (FIG. 6).
- FIG. 7-9 Schematic representation of the vectors used for the production of RNAi constructs pRNAi-bwil-775> 1077sas (FIG. 7), pRNAi-bwil-779> 1 197sas (FIG. 8) and pRNA-bwil-971> 1466sas ( Figure 9).
- Fig. 10-12 Schematic representation of the binary Ti plasmids used for Agrobacterium-mediated transformation pLHRNAi-bwil-775-1077sas (Fig. 10), pLHRNAi-bwil-779-1197sas (Fig. 11) and pLHRNAi-bwil_971-1446sas (Fig. 12).
- 13 Schematic representation of the intron-exon structure of the genomic DNA of BvVIL, with indication of restriction sites.
- a comparison (BLAST) of the obtained full-length clone or of the translated protein sequence shows only a slight sequence similarity with Arabidopsis "flowering genes” (eg At-VIL and AtVIN family), including the genes VIN3 (VRN7). , VIL1 (VR5), VIL2
- Table 1 Sequence comparison of Bv-VIL with Arabidopsis thaliana (At) -VIL candidates at the DNA level. The comparison was carried out at 2343 bp for At-VIN3, 2163 bp for At-VILl, 2555 bp for At-VIL2, and 1700 bp for At-VIL2, and for At -VIL4 over a length of 1251 bp using the program AlignX (Clustal W).
- a comparison (BLAST) of the individual domains shows that the new sequence is a VIL-like sequence. (Fig. 1).
- the sequence (SEQ ID NO: 1) is therefore referred to here as BvVIL (Beta vulgaris vemalisation vin3-like).
- BvVIL Beta vulgaris vemalisation vin3-like
- a sequence comparison of BvVIL with AtVIL candidates at the overall DNA level only shows a maximum homology of 57.2% with AtVIL1. With other At genes of the VIL family shows an even lower sequence similarity.
- RNAi constructs For the production of RNAi constructs, three regions within SEQ ID NO: 3 were used:
- sequence according to SEQ ID NO: 5 was amplified by means of the primer pair F_PLT3 ⁇ 1: 775U27, CTgggATACTTgggTgTTggAAAAgC (SEQ ID NO: 8) and F_PLT3 ⁇ 1: 1050L28, TAgA- AACATTggCgAgCCATTCATTAgC (SEQ ID NO: 9) via PCR.
- sequence according to SEQ ID NO: 6 was amplified by means of the primer pair F_PLT3 ⁇ 1: 779U24, gAACTACTgggTgTTggAAAAgCA (SEQ ID NO: 10), and F_PLT3 ⁇ 1: 1175L23 AATCAgT-CATTggTgTgggATA (SEQ ID NO: 11) via PCR.
- sequence according to SEQ ID NO 7 was amplified by means of the primer pair F_PLT3 ⁇ 1: 971U21, CAAgATggCCAgAggTATTgT (SEQ ID NO: 12) and F_PLT3 ⁇ 1: 1426L21, CTTCCTTTTTA-CACCCCCCACTg (SEQ ID NO: 13) via PCR.
- PCR was performed using 10 ng genomic sugar beet DNA, a primer concentration of 0.2 ⁇ at an annealing temperature of 55 ° C in a multicycler PTC-200 (MJ Research, Watertown, USA) PCR products were each added to the vector pRTRNAi (Hirner A, Ladwig F, Stransky H, Okumoto S, Keinath M, Harms A, Frommer WB, Koch W.
- Arabidopsis LHT1 Is a High-Affinity Transporter for Cellular Amino Acid Uptake in Both Root Epidermis and Leaf Mesophyll Plant Cell .18 (8): 1931-46), integrated in an inverted repeat structure, based on the plasmid pRT100, and designed for the production of intronspliced hairpin structures.
- the vector contains the 35S promoter for constitutive expression (Odell, JT Nagy, F., and Chua, N.-H. (1985), Identification of DNA sequences required for activity of the cauliflower mosaic virus 35S promoter, Nature 313, 810 -812), the Arabidopsis ATAAP6 intron and a polyA terminator.
- the ATAAP6 intron is flanked by the Xhol / Ecl 136II cleavage sites at the 5 'end and by the Smal / Sall restriction cleavage sites at the 3' end, respectively.
- This allows the integration of identical fragments "in sense” and "antisense", if these fragments have the compatible restriction sites Xhol or Sali, or at the other end are blunt-end, for which the original PCR products were replaced with new ones reamplified PCR primers extended around these restriction sites: Sal-SMA-775> 1077 gagaggacgtcgacctgggatacttgggtg (SEQ ID NO: 14) and cccccccgggtagaaacattggcgagc (SEQ ID NO: 15), SAL-SMA-779> 1197 gagaggacgtcgacgatacttgggtgttgg (SEQ ID NO: 16 ) and
- PCR fragments were cloned into the TA cloning vector pCR2.1 (TOPO TA cloning kit (Invitrogen, Carlsbad, USA)) and transformed into E. coli.
- the fragments Sal-SMA-775> 1077, SAL-SMA-779> 1197 and XHO-SMA-971> 1446 were each cut out by Sall / Smal or Xhol / Smal from the topovector and Subsequently, they were first ligated into the pRTR Ai vector cut with Sall / Smal or Xhol / Ecl 13611 in "sense.” The same fragments were then religated a second time in "antisense" into the compatible Xhol / Ecl 136II or Sall / Smal.
- the expression cassettes were isolated after restriction of the pRNAi plasmids with HindIII, cloned into the binary vector pLH9000, and the resultant plasmids were amplified with pLHRNAi-bwil-775-1077sas, pLHRNAi-bwil-779-1197sas, and pLHRNAi-bwil-971 -1446sas called.
- PCR was performed using 10 ng of genomic DNA, a primer concentration of 0.2 ⁇ at an annealing temperature of 55 ° C in a multicycler PTC-200 (MJ Research, Watertown, USA). Checking the flowering and pelt behavior of the transformants
- Non-flowering / non-flowering plants could be obtained from transformants of all three constructs used.
- the location of the sequence used on the gene was not critical to the function.
- the transformants obtained behaved like undenatured sugar beets. They did not start firing or blooming. 30 plants were tested for each independent transformant. All plants were bullet-proof and pitch-resistant without exception. None of the plants showed deviations from the normal phenotype. The plants were further cultivated, they continued to develop into normal beets with normal beet body. Lap and blister resistance persisted over the entire test period of over 4 months (see Fig. 2). A part of the plants was vernalformat a second time for another 3 months.
- RNA used for the cDNA synthesis was checked by PCR for a contamination with genomic DNA, at the same time the result of the cDNA synthesis was examined in parallel.
- the FIREPol DNA polymerase (Solis Biodyne, Tartu, Estonia) was used according to the instructions of the manufacturer. The control was total DNA.
- the PCR program was calculated for a fragment size of 369 bp.
- the primers were synthesized by Eurofins MWG Operon (Ebersberg, Germany) and are listed in Table 3.
- Total DNA was obtained from four-week-old greenhouse plants of the sugar beet line 3DC4156 with the DNeasy-Plant mini-kit (Qiagen, Hilden, Germany) according to the protocol isolated from the manufacturer.
- the RevertAid first strand cDNA Synthes kit from Fermentas (Vilnius, Lithuania) was used to synthesize cDNA following the manufacturer's instructions.
- the cDNA was used as a 1:10 dilution for qPCR analysis with an ABI-StepOnePlus real-time PCR machine, performing an S YBR-green based qPCR.
- ABI's POWER-S YBR-green PCR mix (Foster City, USA) was used as a reaction buffer. When preparing the reaction mixtures, the instructions of the manufacturer were followed, in each case three repetitions were carried out.
- the primers for the qPCR were synthesized by Eurofins MWG Operon (Ebersberg, Germany) and are listed in Table 4. The primer pair nlosrealtl and nlosrealt2 served for normalization.
- the qPCR was performed as shown in Table 5.
- Steps 2-4 were repeated 40x, measurements were taken after step 4 and each step of melting point determination. From the qPCR analysis, relative expression levels for BvVIL were determined. The expression strength of the non-transgenic control was set as 1. The results are shown in Table 6 for the plants from vernalization.
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Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EA201200468A EA025113B1 (ru) | 2009-09-15 | 2010-09-15 | Ингибирование стрелкования и цветения растений сахарной свеклы |
| DE112010003653T DE112010003653A5 (de) | 2009-09-15 | 2010-09-15 | Inhibierung des schossens und blühens einer zuckerrübenpflanze |
| RS20120151A RS20120151A1 (sr) | 2009-09-15 | 2010-09-15 | Inhibicija puštanja izdanaka i cvetanja šećerne repe |
| UAA201204227A UA110019C2 (uk) | 2009-09-15 | 2010-09-15 | Пригнічення стрілкування та цвітіння рослини цукрового буряка |
| EP10776278.3A EP2478007B1 (de) | 2009-09-15 | 2010-09-15 | Inhibierung des schossens und blühens einer zuckerrübenpflanze |
| CA2773488A CA2773488A1 (en) | 2009-09-15 | 2010-09-15 | Inhibition of bolting and flowering of a sugar beet plant |
| US13/391,865 US9222102B2 (en) | 2009-09-15 | 2010-09-15 | Inhibition of bolting and flowering of a sugar beet plant |
| MA34752A MA33657B1 (fr) | 2009-09-15 | 2012-04-04 | Inhibition de la montaison et de la floraison d'une plante de betterave à sucre |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009041333.2 | 2009-09-15 | ||
| DE102009041333 | 2009-09-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2011032537A1 true WO2011032537A1 (de) | 2011-03-24 |
Family
ID=43413609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2010/001081 Ceased WO2011032537A1 (de) | 2009-09-15 | 2010-09-15 | Inhibierung des schossens und blühens einer zuckerrübenpflanze |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US9222102B2 (de) |
| EP (1) | EP2478007B1 (de) |
| CA (1) | CA2773488A1 (de) |
| CL (1) | CL2012000649A1 (de) |
| DE (1) | DE112010003653A5 (de) |
| EA (1) | EA025113B1 (de) |
| MA (1) | MA33657B1 (de) |
| RS (1) | RS20120151A1 (de) |
| UA (1) | UA110019C2 (de) |
| WO (1) | WO2011032537A1 (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3162897A1 (de) | 2015-10-30 | 2017-05-03 | Kws Saat Se | Hemmung des schiessens und des blühens einer beta-vulgaris-pflanze |
| EP3282016A1 (de) | 2016-08-10 | 2018-02-14 | Kws Saat Se | Resistenzgen gegen wurzelbärtigkeit |
| EP3835309A1 (de) * | 2019-12-13 | 2021-06-16 | KWS SAAT SE & Co. KGaA | Verfahren zur erhöhung der kälte- oder frosttoleranz in einer pflanze |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2647646B1 (de) | 2012-04-04 | 2019-07-31 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Nukleinsäuresequenzen und Peptide/Proteine der FT-Familie mit blühunterdrückenden Eigenschaften bei Tabak und damit transformierte transgene Pflanzen |
| EP3798301A1 (de) | 2019-09-25 | 2021-03-31 | KWS SAAT SE & Co. KGaA | Promotorunterdrückung |
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| US20040031072A1 (en) * | 1999-05-06 | 2004-02-12 | La Rosa Thomas J. | Soy nucleic acid molecules and other molecules associated with transcription plants and uses thereof for plant improvement |
| WO2007122086A1 (en) * | 2006-04-21 | 2007-11-01 | Syngenta Participations Ag | Transgenic plants and methods for controlling bolting in sugar beet |
| WO2009141446A1 (en) * | 2008-05-23 | 2009-11-26 | Syngenta Participations Ag | Transgenic sugar beet plants |
| WO2010025888A2 (en) * | 2008-09-02 | 2010-03-11 | Syngenta Participations Ag | Engineering of bolting resistance in sugar beet by means of the transgenic expression of the beet homologue of flowering time control gene ft |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7227053B2 (en) * | 2000-12-22 | 2007-06-05 | Cropdesign | Sugar beet genes involved in stress tolerance |
| JP2005185101A (ja) * | 2002-05-30 | 2005-07-14 | National Institute Of Agrobiological Sciences | 植物の全長cDNAおよびその利用 |
| US8293977B2 (en) * | 2006-04-21 | 2012-10-23 | Syngenta Participations Ag | Transgenic plants and methods for controlling bolting in sugar beet |
-
2010
- 2010-09-15 UA UAA201204227A patent/UA110019C2/uk unknown
- 2010-09-15 RS RS20120151A patent/RS20120151A1/sr unknown
- 2010-09-15 DE DE112010003653T patent/DE112010003653A5/de not_active Withdrawn
- 2010-09-15 WO PCT/DE2010/001081 patent/WO2011032537A1/de not_active Ceased
- 2010-09-15 EP EP10776278.3A patent/EP2478007B1/de not_active Not-in-force
- 2010-09-15 CA CA2773488A patent/CA2773488A1/en not_active Abandoned
- 2010-09-15 US US13/391,865 patent/US9222102B2/en not_active Expired - Fee Related
- 2010-09-15 EA EA201200468A patent/EA025113B1/ru not_active IP Right Cessation
-
2012
- 2012-03-14 CL CL2012000649A patent/CL2012000649A1/es unknown
- 2012-04-04 MA MA34752A patent/MA33657B1/fr unknown
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| US20040031072A1 (en) * | 1999-05-06 | 2004-02-12 | La Rosa Thomas J. | Soy nucleic acid molecules and other molecules associated with transcription plants and uses thereof for plant improvement |
| WO2007122086A1 (en) * | 2006-04-21 | 2007-11-01 | Syngenta Participations Ag | Transgenic plants and methods for controlling bolting in sugar beet |
| WO2009141446A1 (en) * | 2008-05-23 | 2009-11-26 | Syngenta Participations Ag | Transgenic sugar beet plants |
| WO2010025888A2 (en) * | 2008-09-02 | 2010-03-11 | Syngenta Participations Ag | Engineering of bolting resistance in sugar beet by means of the transgenic expression of the beet homologue of flowering time control gene ft |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3162897A1 (de) | 2015-10-30 | 2017-05-03 | Kws Saat Se | Hemmung des schiessens und des blühens einer beta-vulgaris-pflanze |
| WO2017072304A1 (en) | 2015-10-30 | 2017-05-04 | Kws Saat Se | Inhibition of bolting and flowering of a beta vulgaris plant |
| US11034971B2 (en) | 2015-10-30 | 2021-06-15 | KWS SAAT SE & Co. KGaA | Inhibition of bolting and flowering of a beta vulgaris plant |
| EP3282016A1 (de) | 2016-08-10 | 2018-02-14 | Kws Saat Se | Resistenzgen gegen wurzelbärtigkeit |
| WO2018029300A1 (de) | 2016-08-10 | 2018-02-15 | Kws Saat Se | Resistenzgen gegen wurzelbärtigkeit |
| US11434499B2 (en) | 2016-08-10 | 2022-09-06 | KWS SAAT SE & Co. KGaA | Resistance gene to rhizomania |
| EP3835309A1 (de) * | 2019-12-13 | 2021-06-16 | KWS SAAT SE & Co. KGaA | Verfahren zur erhöhung der kälte- oder frosttoleranz in einer pflanze |
| WO2021116448A1 (en) * | 2019-12-13 | 2021-06-17 | KWS SAAT SE & Co. KGaA | Method for increasing cold or frost tolerance in a plant |
| US12139719B2 (en) | 2019-12-13 | 2024-11-12 | KWS SAAT SE & Co. KGaA | Method for increasing cold or frost tolerance in a plant |
Also Published As
| Publication number | Publication date |
|---|---|
| EA201200468A1 (ru) | 2012-08-30 |
| CL2012000649A1 (es) | 2012-10-19 |
| CA2773488A1 (en) | 2011-03-24 |
| MA33657B1 (fr) | 2012-10-01 |
| EP2478007A1 (de) | 2012-07-25 |
| UA110019C2 (uk) | 2015-11-10 |
| US20120167247A1 (en) | 2012-06-28 |
| DE112010003653A5 (de) | 2012-12-20 |
| EA025113B1 (ru) | 2016-11-30 |
| EP2478007B1 (de) | 2017-11-15 |
| US9222102B2 (en) | 2015-12-29 |
| RS20120151A1 (sr) | 2012-10-31 |
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