Abstract: Efficient methods are disclosed for the high throughput identification of mutations in genes in members of mutagenized populations. The methods comprise DNA isolation, pooling, amplification, creation of libraries, high throughput sequencing of libraries, preferably by sequencing-by-synthesis technologies, identification of mutations and identification of the member of the population carrying the mutation and identification of the mutation.
Type:
Grant
Filed:
February 16, 2017
Date of Patent:
August 29, 2017
Assignee:
Keygene N.V.
Inventors:
Michael Josephus Theresia van Eijk, Adrianus Johannes van Tunen
Abstract: The present invention provides use of a plant gene JAZ5a for improving drought-resistance of a plant. It further provides a method for improving the drought-resistance of a plant, comprising enhancing the expression or activity of Jaz5A in said plant.
Abstract: The invention relates to a method for identifying one or more polymorphisms in nucleic acid samples, comprising: (a) performing a reproducible complexity reduction on a plurality of nucleic acid samples to provide a plurality of libraries of the nucleic acid samples comprising amplified fragments, wherein the reproducible complexity reduction comprises amplifying fragments of the nucleic acid samples using one or more primers to obtain the amplified fragments, and wherein the amplified fragments in each library comprise a unique identifier sequence to indicate origin of each library obtained by the reproducible complexity reduction; (b) combining the plurality of libraries to obtain a combined library and sequencing at least a portion of the combined library to obtain sequences; (c) aligning the sequences to obtain an alignment; and (d) identifying one or more polymorphisms in the plurality of nucleic acid samples.
Type:
Application
Filed:
March 23, 2017
Publication date:
July 20, 2017
Applicant:
Keygene N.V.
Inventors:
Michael Josephus Theresia VAN EIJK, Henricus Johannes Adam VAN DER POEL
Abstract: The invention relates to a method for the high throughput discovery, detection and genotyping of one or more genetic markers in one or more samples, comprising the steps of restriction endonuclease digest of DNA, adaptor-ligation, optional pre-amplification, selective amplification, pooling of the amplified products, sequencing the libraries with sufficient redundancy, clustering followed by identification of the genetic markers within the library and/or between libraries and determination of (co-)dominant genotypes of the genetic markers.
Type:
Grant
Filed:
December 1, 2016
Date of Patent:
July 11, 2017
Assignee:
Keygene N.V.
Inventors:
Michael Josephus Theresia Van Eijk, Anker Preben Sørensen, Marco Gerardus Maria Van Schriek
Abstract: The present invention relates to powdery mildew resistance providing genes of the Cucumis family, and especially Cucumis melo, wherein said resistance is provided by impairment of the present genes. Further, the present invention relates plants comprising the present impaired resistance conferring genes and seeds, embryos or other propagation material thereof. Especially, the present invention relates to powdery mildew resistance conferring genes, wherein the amino acid sequence encoded by said resistance conferring gene is selected from the group consisting of SEQ ID No. 2, SEQ ID No. 4, SEQ ID No. 6, SEQ ID No. 8, SEQ ID No. 10, SEQ ID No. 12 and SEQ ID No. 14, and amino acid sequences with more than 70% identity, preferably more than 80% identity, more preferably more than 90% identity, and most preferably more than 95% identity.
Type:
Grant
Filed:
February 24, 2012
Date of Patent:
June 27, 2017
Assignees:
Enza Zaden Beheer B.V., Keygene N.V.
Inventors:
Paul Johan Diergaarde, Leonora Johanna Gertruda Van Enckevort, Karin Ingeborg Posthuma, Marinus Willem Prins
Abstract: Efficient methods are disclosed for the high throughput identification of mutations in genes in members of mutagenized populations. The methods comprise DNA isolation, pooling, amplification, creation of libraries, high throughput sequencing of libraries, preferably by sequencing-by-synthesis technologies, identification of mutations and identification of the member of the population carrying the mutation and identification of the mutation.
Type:
Application
Filed:
February 16, 2017
Publication date:
June 15, 2017
Applicant:
Keygene N.V.
Inventors:
Michael Josephus Theresia van EIJK, Adrianus Johannes van TUNEN
Abstract: Efficient methods are disclosed for the high throughput identification of mutations in genes in members of mutagenized populations. The methods comprise DNA isolation, pooling, amplification, creation of libraries, high throughput sequencing of libraries, preferably by sequencing-by-synthesis technologies, identification of mutations and identification of the member of the population carrying the mutation and identification of the mutation.
Type:
Application
Filed:
February 16, 2017
Publication date:
June 8, 2017
Applicant:
Keygene N.V.
Inventors:
Michael Josephus Theresia van EIJK, Adrianus Johannes van TUNEN
Abstract: Efficient methods are disclosed for the high throughput identification of mutations in genes in members of mutagenized populations. The methods comprise DNA isolation, pooling, amplification, creation of libraries, high throughput sequencing of libraries, preferably by sequencing-by-synthesis technologies, identification of mutations and identification of the member of the population carrying the mutation and identification of the mutation.
Type:
Grant
Filed:
January 6, 2017
Date of Patent:
June 6, 2017
Assignee:
Keygene N.V.
Inventors:
Michael Josephus Theresia van Eijk, Adrianus Johannes van Tunen
Abstract: Efficient methods are disclosed for the high throughput identification of mutations in genes in members of mutagenized populations. The methods comprise DNA isolation, pooling, amplification, creation of libraries, high throughput sequencing of libraries, preferably by sequencing-by-synthesis technologies, identification of mutations and identification of the member of the population carrying the mutation and identification of the mutation.
Type:
Grant
Filed:
October 7, 2016
Date of Patent:
May 23, 2017
Assignee:
Keygene N.V.
Inventors:
Michael Josephus Theresia Van Eijk, Adrianus Johannes Van Tunen
Abstract: The invention relates to a method for the high throughput identification of single nucleotide polymorphisms by performing a complexity reduction on two or more samples to yield two or more libraries, sequencing at least part of the libraries, aligning the identified sequences and determining any putative single nucleotide polymorphisms, confirming any putative single nucleotide polymorphism, generating detection probes for the confirmed single nucleotide polymorphisms, subjection a test sample to the same complexity reduction to provide a test library and screen the test library for the presence or absence of the single nucleotide polymorphisms using the detection probe.
Type:
Application
Filed:
November 14, 2016
Publication date:
May 18, 2017
Applicant:
Keygene N.V.
Inventors:
Michael Josephus Theresia VAN EIJK, Henricus Johannes Adam VAN DER POEL
Abstract: Efficient methods are disclosed for the high throughput identification of mutations in genes in members of mutagenized populations. The methods comprise DNA isolation, pooling, amplification, creation of libraries, high throughput sequencing of libraries, preferably by sequencing-by-synthesis technologies, identification of mutations and identification of the member of the population carrying the mutation and identification of the mutation.
Type:
Application
Filed:
January 6, 2017
Publication date:
April 27, 2017
Applicant:
Keygene N.V.
Inventors:
Michael Josephus Theresia van EIJK, Adrianus Johannes van TUNEN
Abstract: The present invention relates to a new method for improving glyphosate resistance of a plant. The method encompasses providing one or more specific mutations in a specific nucleotide sequence in said plant. In comparison to a plant not manipulated according to the method, the plant obtained by the method displays (improved) glyphosate resistance. Also provided are a (transgenic) plant, including a seed thereof, and a plant product that can be obtained by the method according to the invention.
Abstract: The invention relates to a method for the high throughput discovery, detection and genotyping of one or more genetic markers in one or more samples, comprising the steps of restriction endonuclease digest of DNA, adaptor-ligation, optional pre-amplification, selective amplification, pooling of the amplified products, sequencing the libraries with sufficient redundancy, clustering followed by identification of the genetic markers within the library and/or between libraries and determination of (co-)dominant genotypes of the genetic markers.
Type:
Application
Filed:
December 1, 2016
Publication date:
March 23, 2017
Applicant:
Keygene N.V.
Inventors:
Michael Josephus Theresia VAN EIJK, Anker Preben SØRENSEN, Marco Gerardus Maria VAN SCHRIEK
Abstract: The present invention relates to identification and isolation of zinc finger transcription factor in tomato that specifically expresses in glandular trichomes of Solanum lycopersicum cultivar Moneymaker and binds to the promoters of the genes encoding Terpene Synthase 5 (also known as Monoterpene Synthase 1) and Terpene Synthase 11 (also known as Sesquiterpene Synthase 1). The invention provides the isolated, recombinant or synthetic polynucleotides encoding the polypeptide sequences of SEQ ID NO:2 and variants and fragments thereof. The invention also provides constructs, vectors, host cells and plants genetically modified to contain the polynucleotides of the invention. The methods for producing plants with altered levels of terpenes, including transformed and mutant plants, are also provided.
Type:
Grant
Filed:
June 8, 2012
Date of Patent:
March 21, 2017
Assignee:
Keygene N.V.
Inventors:
Robert Cornelis Schuurink, Michael Albertus Haring, Eleni Spyropoulou
Abstract: Disclosed here is a method for the detection of a naturally occurring mutation in a target sequence in one or more members of a population, comprising: providing a plurality of pools of amplification products each comprising the target sequence amplified from genomic DNA of a subset of the one or more members of the population, wherein each pool of the amplification products shares a unique pool identifier; determining the nucleotide sequence of the amplification products using high throughput sequencing; and identifying mutations by clustering/aligning the sequences of the amplified products without the use of an enzyme which recognizes and cuts single nucleotide sequence mismatches and without performing heteroduplex analysis, and identifying the one or more members carrying the mutation using the pool identifier.
Type:
Grant
Filed:
May 26, 2016
Date of Patent:
February 21, 2017
Assignee:
KEYGENE N.V.
Inventors:
Michael Josephus Theresia van Eijk, Adrianus Johannes van Tunen
Abstract: Efficient methods are disclosed for the high throughput identification of mutations in genes in members of mutagenized populations. The methods comprise DNA isolation, pooling, amplification, creation of libraries, high throughput sequencing of libraries, preferably by sequencing-by-synthesis technologies, identification of mutations and identification of the member of the population carrying the mutation and identification of the mutation.
Type:
Application
Filed:
October 7, 2016
Publication date:
January 26, 2017
Applicant:
Keygene N.V.
Inventors:
Michael Josephus Theresia Van EIJK, Adrianus Johannes Van TUNEN
Abstract: The current invention relates to a method for targeted alteration of acceptor DNA, for example duplex acceptor DNA. The method comprises use of at least two oligonucleotides, each oligonucleotide having at least one mismatch relative to the targeted (duplex) acceptor DNA. The mismatch of the first oligonucleotide is directed to a nucleotide at a position in the first strand of the duplex and the mismatch of the second oligonucleotide is directed to the nucleotide in the second strand that occupies the complementary position in the duplex acceptor DNA (e.g. forms a base-pair with the nucleotide in the first strand). These mismatches are located at specific positions within said oligonucleotides. Also provided is a kit that comprises instructions for performing the method according to the inventions, and in a preferred embodiment, comprises oligonucleotides suitable for use in the method.
Type:
Grant
Filed:
November 25, 2011
Date of Patent:
December 13, 2016
Assignee:
KEYGENE N.V.
Inventors:
Michiel Theodoor Jan De Both, Tomoyuki Furukawa
Abstract: The invention relates to a method for the high throughput identification of single nucleotide polymorphisms by performing a complexity reduction on two or more samples to yield two or more libraries, sequencing at least part of the libraries, aligning the identified sequences and determining any putative single nucleotide polymorphisms, confirming any putative single nucleotide polymorphism, generating detection probes for the confirmed single nucleotide polymorphisms, subjection a test sample to the same complexity reduction to provide a test library and screen the test library for the presence or absence of the single nucleotide polymorphisms using the detection probe.
Type:
Grant
Filed:
February 19, 2015
Date of Patent:
November 15, 2016
Assignee:
Keygene N.V.
Inventors:
Michael Josephus Theresia Van Eijk, Henricus Johannes Adam Van der Poel
Abstract: The present invention relates to powdery mildew resistance providing genes of the Cucumis family, and especially Cucumis sativus, wherein said resistance is provided by impairment of the present genes. Further, the present invention relates plants comprising the present impaired resistance conferring genes and seeds, embryos or other propagation material thereof. Especially, the present invention relates to powdery mildew resistance conferring genes, wherein the amino acid sequence encoded by said resistance conferring gene is selected from the group consisting of SEQ ID No. 2, SEQ ID No. 4, SEQ ID No. 6, SEQ ID No. 8, SEQ ID No. 10, SEQ ID No. 12, SEQ ID No. 14, SEQ ID No. 16, SEQ ID No. 18, SEQ ID No. 20 and SEQ ID No. 22, and amino acid sequences with more than 70% identity, preferably more than 80% identity, more preferably more than 90% identity, and most preferably more than 95% identity.
Type:
Grant
Filed:
February 20, 2012
Date of Patent:
November 15, 2016
Assignees:
Enza Zaden Beheer B.V., Keygene N.V.
Inventors:
Paul Johan Diergaarde, Leonora Johanna Gertruda Van Enckevort, Karin Ingeborg Posthuma, Marinus Willem Prins
Abstract: The invention relates to a method for the high throughput identification of single nucleotide polymorphisms by performing a complexity reduction on two or more samples to yield two or more libraries, sequencing at least part of the libraries, aligning the identified sequences and determining any putative single nucleotide polymorphisms, confirming any putative single nucleotide polymorphism, generating detection probes for the confirmed single nucleotide polymorphisms, subjection a test sample to the same complexity reduction to provide a test library and screen the test library for the presence or absence of the single nucleotide polymorphisms using the detection probe.
Type:
Grant
Filed:
January 28, 2016
Date of Patent:
September 27, 2016
Assignee:
Keygene N.V.
Inventors:
Michael Josephus Theresia Van Eijk, Henricus Johannes Adam Van der Poel