公开(公告)号：EP4144850A1

公开(公告)日：2023-03-08

申请号：EP22181154.0

申请日：2015-12-23

申请人： KWS SAAT SE & Co. KGaA

发明人： BOLDUAN, Christof ,  BREUER, Frank ,  KLOIBER-MAITZ, Monika ,  NIESSEN, Markus ,  OUZUNOVA, Milena ,  SCHULZ, Britta ,  WIECKHORST, Silke

IPC分类号： C12N15/82 ,  C12N15/29 ,  C07K14/415 ,  A01H1/08 ,  A01H5/06 ,  A01H5/10 ,  A01H6/20

摘要： 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.

公开(公告)号：EP4141123A1

公开(公告)日：2023-03-01

申请号：EP22181432.0

申请日：2015-12-23

申请人： KWS SAAT SE & Co. KGaA

发明人： BOLDUAN, Christof ,  BREUER, Frank ,  KLOIBER-MAITZ, Monika ,  NIESSEN, Markus ,  OUZUNOVA, Milena ,  SCHULZ, Britta ,  WIECKHORST, Silke

IPC分类号： C12N15/82 ,  C12N15/29 ,  C07K14/415 ,  A01H1/08 ,  A01H5/06 ,  A01H5/10 ,  A01H6/20

摘要： 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.

公开(公告)号：EP3986118A1

公开(公告)日：2022-04-27

申请号：EP20825832.7

申请日：2020-06-17

申请人： Pioneer Hi-Bred International, Inc.

发明人： BRUGIERE, Norbert ,  CHEN, Wenpin ,  FALAK, Igor ,  JETTY, Siva S Ammiraju ,  LU, Cheng ,  WILLIAMS, Robert W

IPC分类号： A01H1/00 ,  A01H5/00 ,  A01H6/20 ,  C07K14/415 ,  C12N9/22 ,  C12N15/09 ,  C12N15/11

公开(公告)号：EP3957167A1

公开(公告)日：2022-02-23

申请号：EP20791489.6

申请日：2020-04-17

申请人： Sakata Seed Corporation

发明人： HORIUCHI, Shingo ,  SUZUKI, Takao ,  IZUMIDA, Atsushi ,  NISHIKAWA, Kazuhiro

IPC分类号： A01H5/00 ,  A01H5/10 ,  A01H6/20 ,  C12N15/05 ,  C12N15/11 ,  C12N15/29 ,  C12Q1/6895

摘要： The present specification discloses a cytoplasmic male sterile Brassica rapa plant having a growth ability equivalent to that of a Brassica rapa plant having a normal cytoplasm or a progeny of the cytoplasmic male sterile Brassica rapa plant. In existing-cytoplasmic-male-sterile B. rapa plants, the compatibility between the nuclear genome and mitochondrial genome is insufficient. Therefore, the existing-cytoplasmic-male-sterile B. rapa plants have the problem that the growth ability is deteriorated compared with those of B. rapa plants having a normal cytoplasm. With the present invention, it is possible to improve the deterioration of growth ability which has been observed in the conventional cytoplasmic male sterile B. rapa plants and provide a cytoplasmic male sterile Brassica rapa plant having an improved growth ability.