Patents by Inventor Silke Wieckhorst
Silke Wieckhorst has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 11895960Abstract: The present invention relates to non-transgenic and transgenic plants, preferably crop plants, comprising a mutation causing an alteration of the amino acid sequence in the CATD domain of the centromere histone H3 (CENH3), preferably within the loop1 or the ?2-helix of the CATD domain, which have the biological activity of a haploid inducer. Further, the present invention provides methods of generating the plants of the present invention and haploid and double haploid plants obtainable by crossing the plants of the present invention with wildtype plants as well as methods of facilitating cytoplasm exchange.Type: GrantFiled: March 31, 2021Date of Patent: February 13, 2024Assignee: KWS SAAT SE & Co. KGaAInventors: Andreas Houben, Raheleh Karimi-Ashiyani, Takayoshi Ishii, Nils Stein, Jochen Kumlehm, Christof Bolduan, Frank Breuer, Monika Kloiber-Maitz, Markus Niessen, Milena Ouzunova, Britta Schulz, Silke Wieckhorst
-
Publication number: 20230279415Abstract: Sorghum plants are provided which are capable of inducing haploidy by modifications in the genome related to a pollen-specific expressed patatin phospholipid producing haploid offspring and can be produced for hybrid breeding in short time by chromosome doubling inbred lines, that is, homozygous father and mother lines. In addition, methods are provided for producing transgenic and non-transgenic plant haploid inducers and improving the induction performance of plants.Type: ApplicationFiled: April 18, 2023Publication date: September 7, 2023Applicant: KWS SAAT SE & Co. KGaAInventors: Monika KLOIBER-MAITZ, Silke WIECKHORST, Christof BOLDUAN, Milena OUZUNOVA
-
Patent number: 11661607Abstract: Sorghum plants are provided which are capable of inducing haploidy by modifications in the genome related to a pollen-specific expressed patatin phospholipid producing haploid offspring and can be produced for hybrid breeding in short time by chromosome doubling inbred lines, that is, homozygous father and mother lines. In addition, methods are provided for producing transgenic and non-transgenic plant haploid inducers and improving the induction performance of plants.Type: GrantFiled: February 28, 2018Date of Patent: May 30, 2023Assignee: KWS SAAT SE & Co. KGaAInventors: Monika Kloiber-Maitz, Silke Wieckhorst, Christof Bolduan, Milena Ouzunova
-
Publication number: 20220033899Abstract: The present invention relates to methods for identifying desired allelic variations in a population, for selecting individuals comprising a desired allelic variation, as well as methods for generating individuals comprising a desired allelic variation. These methods include the use synthetic oligonucleotides to optimize or validate detection assays.Type: ApplicationFiled: November 30, 2019Publication date: February 3, 2022Applicant: KWS SAAT SE & Co. KGaAInventors: Olaf CZARNECKI, Sandra HABEKOST, Monika KLOIBER-MAITZ, Silke WIECKHORST
-
Publication number: 20210259178Abstract: The present invention relates to non-transgenic and transgenic plants, preferably crop plants, comprising a mutation causing an alteration of the amino acid sequence in the CATD domain of the centromere histone H3 (CENH3), preferably within the loop1 or the ?2-helix of the CATD domain, which have the biological activity of a haploid inducer. Further, the present invention provides methods of generating the plants of the present invention and haploid and double haploid plants obtainable by crossing the plants of the present invention with wildtype plants as well as methods of facilitating cytoplasm exchange.Type: ApplicationFiled: March 31, 2021Publication date: August 26, 2021Applicant: KWS SAAT SE & Co. KGaAInventors: Andreas HOUBEN, Raheleh KARIMI-ASHIYANI, Takayoshi ISHII, Nils STEIN, Jochen KUMLEHM, Christof BOLDUAN, Frank BREUER, Monika KLOIBER-MAITZ, Markus NIESSEN, Milena OUZUNOVA, Britta SCHULZ, Silke WIECKHORST
-
Patent number: 10993391Abstract: The present invention relates to non-tränsgenic and transgenic plants, preferably crop plants, comprising a mutation causing an alteration of the amino acid sequence in the CATD domain of the centromere histone H3 (CENH3), preferably within the loop1 or the ?2-helix of the CATD domain, which have the biological activity of a haploid inducer. Further, the present invention provides methods of generating the plants of the present invention and haploid and double haploid plants obtainable by crossing the plants of the present invention with wildtype plants as well as methods of facilitating cytoplasm exchange.Type: GrantFiled: August 28, 2015Date of Patent: May 4, 2021Assignee: KWS SAAT SE & CO. KGAAInventors: Andreas Houben, Raheleh Karimi-Ashiyani, Takayoshi Ishii, Nils Stein, Jochen Kumlehm, Christof Bolduan, Frank Breuer, Monika Kloiber-Maitz, Markus Niessen, Milena Ouzunova, Britta Schulz, Silke Wieckhorst
-
Publication number: 20210079419Abstract: The present invention relates to non-transgenic and transgenic plants, preferably crop plants, having biological activity of a haploid inducer and comprising a polynucleotide which comprises a nucleotide sequence encoding a centromer histone H3 (CENH3) protein, wherein the polynucleotide comprises at least one mutation causing an alteration of the amino acid sequence of the CENH3 protein, and to a part of the part. Further, the invention provides methods of generating the inducer plants, methods of generating haploid and double haploid plants using the inducer plants as well as methods of facilitating cytoplasm exchange.Type: ApplicationFiled: October 12, 2020Publication date: March 18, 2021Applicant: KWS SAAT SE & CO. KGAAInventors: Christof BOLDUAN, Frank BREUER, Monika KLOIBER-MAITZ, Markus NIESSEN, Milena OUZUNOVA, Britta SCHULZ, Silke WIECKHORST
-
Patent number: 10844401Abstract: The present invention relates to non-transgenic and transgenic plants, preferably crop plants, having biological activity of a haploid inducer and comprising a polynucleotide which comprises a nucleotide sequence encoding a centromer histone H3 (CENH3) protein, wherein the polynucleotide comprises at least one mutation causing an alteration of the amino acid sequence of the CENH3 protein, and to a part of the part. Further, the invention provides methods of generating the inducer plants, methods of generating haploid and double haploid plants using the inducer plants as well as methods of facilitating cytoplasm exchange.Type: GrantFiled: December 23, 2015Date of Patent: November 24, 2020Assignee: KWS SAAT SE & CO. KGAAInventors: Christof Bolduan, Frank Breuer, Monika Kloiber-Maitz, Markus Niessen, Milena Ouzunova, Britta Schulz, Silke Wieckhorst
-
Publication number: 20190390213Abstract: Sorghum plants are provided which are capable of inducing haploidy by modifications in the genome related to a pollen-specific expressed patatin phospholipid producing haploid offspring and can be produced for hybrid breeding in short time by chromosome doubling inbred lines, that is, homozygous father and mother lines. In addition, methods are provided for producing transgenic and non-transgenic plant haploid inducers and improving the induction performance of plants.Type: ApplicationFiled: February 28, 2018Publication date: December 26, 2019Applicant: KWS SAAT SE & Co. KGaAInventors: Monika KLOIBER-MAITZ, Silke WIECKHORST, Christof BOLDUAN, Milena OUZUNOVA
-
Publication number: 20180139917Abstract: The present invention relates to non-transgenic and transgenic plants, preferably crop plants, having biological activity of a haploid inducer and comprising a polynucleotide which comprises a nucleotide sequence encoding a centromer histone H3 (CENH3) protein, wherein the polynucleotide comprises at least one mutation causing an alteration of the amino acid sequence of the CENH3 protein, and to a part of the part. Further, the invention provides methods of generating the inducer plants, methods of generating haploid and double haploid plants using the inducer plants as well as methods of facilitating cytoplasm exchange.Type: ApplicationFiled: December 23, 2015Publication date: May 24, 2018Applicant: KWS SAAT SEInventors: Christof BOLDUAN, Frank BREUER, Monika KLOIBER-MAITZ, Markus NIESSEN, Milena OUZUNOVA, Britta SCHULZ, Silke WIECKHORST
-
Publication number: 20170280646Abstract: The present invention relates to non-transgenic and transgenic plants, preferably crop plants, comprising a mutation causing an alteration of the amino acid sequence in the CATD domain of the centromere histone H3 (CENH3), preferably within the loop1 or the ?2-helix of the CATD domain, which have the biological activity of a haploid inducer. Further, the present invention provides methods of generating the plants of the present invention and haploid and double haploid plants obtainable by crossing the plants of the present invention with wildtype plants as well as methods of facilitating cytoplasm exchange.Type: ApplicationFiled: August 28, 2015Publication date: October 5, 2017Applicant: KWS SAAT SEInventors: Andreas HOUBEN, Raheleh Karimi-Ashiyani, Takayoshi Ishii, Nils Stein, Jochen Kumlehm, Christof Bolduan, Frank Breuer, Monika Kloiber-Maitz, Markus Niessen, Milena Ouzunova, Britta Schulz, Silke Wieckhorst