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公开(公告)号:US20240023504A1
公开(公告)日:2024-01-25
申请号:US18037710
申请日:2021-11-19
CPC分类号: A01H1/08 , A01H1/09 , A01H6/4684
摘要: Disclosed are methods for the doubling of a plant cell's chromosome by applying an electromagnetic field and methods for obtaining a doubled-haploid plant cell. In some embodiments, the plant cell is selected from the group comprising maize, rice, tomato, and tobacco. Also disclosed is an apparatus for applying an electromagnetic field to a plant cell.
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公开(公告)号:US20190116746A1
公开(公告)日:2019-04-25
申请号:US15743191
申请日:2016-07-06
IPC分类号: A01H1/04 , C12Q1/6895 , C12N15/10
摘要: The present invention relates to a viability-retaining method of selecting corn embryos having a desired trait, said method comprising extracting embryos, removing associated non-embryogenic tissue or DNA from the exterior of the embryo; and extracting DNA directly from the embryo. The invention surprisingly shows that germinating embryos sampled directly for their DNA content are capable of continuing the germination process to form normal seedlings.
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公开(公告)号:US20180092316A1
公开(公告)日:2018-04-05
申请号:US15354912
申请日:2016-11-17
发明人: Satya CHINTAMANANI , Timothy KELLIHER , Brent DELZER , Michael NUCCIO , Robert Arthur DIETRICH , Suresh Babu KADARU , Todd WARNER , William Paul BULLOCK
IPC分类号: A01H1/08 , A01H5/10 , C12Q1/6895 , A01H1/04 , C12N15/82
CPC分类号: A01H1/08 , A01H1/04 , A01H5/10 , C12N9/18 , C12N15/8218 , C12N15/8247 , C12N15/8261 , C12N15/8287 , C12N2310/14 , C12N2310/20 , C12Q1/6895 , C12Y301/01002 , Y02A40/146
摘要: Provided here are methods of using a mutated patatin-like phospholipase IIα (“pPLAIIα,” renamed here MATRILINEAL) to induce haploid induction in plants, cloning a pPLAIIα to induce haploid induction in plants, and genetically engineering a plant to contain a mutated pPLAIIα. Also provided are methods of applying topical and spray chemicals, lipids, and RNAi molecules to plants during pollination in order to induce haploid production. Further provided are methods of chemically treating plants during pollination to induce haploids while also reducing embryo abortion and increasing seed set.
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公开(公告)号:US20170067067A1
公开(公告)日:2017-03-09
申请号:US14212504
申请日:2014-03-14
发明人: Satya CHINTAMANANI , Brent DELZER , Michael L NUCCIO , Robert Arthur DIETRICH , Suresh Babu KADARU , Todd Lee WARNER , William Paul BULLOCK , Timothy KELLIHER
CPC分类号: C12N15/8216 , A01H1/04 , A01H1/08 , C12N9/18 , C12N15/8218 , C12N15/8261 , C12N15/8287 , C12Q1/686 , C12Q1/6895 , Y02A40/146
摘要: Provided are isolated cDNAs. In some embodiments, the isolated cDNA are selected from the group consisting of: (a) a nucleic acid having at least 90% identity to SEQ ID NO: 33, SEQ ID NO: 37, SEQ ID NO: 52 or SEQ ID NO: 53, optionally wherein the percent identity is calculated over the entire length of SEQ ID NO: 33, SEQ ID NO: 37, SEQ ID NO: 52 or SEQ ID NO: 53; (b) a nucleic acid having at least 95% identity over nucleotides 91-1452 of SEQ ID NO: 33; (c) a nucleic acid that is the reverse complement of either of (a) or (b); and (d) a nucleic acid that encodes a polypeptide comprising an amino acid sequence that is at least 95% identical to SEQ ID NO: 54, or SEQ ID NO: 55, or SEQ ID NO: 56, or SEQ ID NO: 57 optionally wherein the percent identity is calculated over the entire length of SEQ ID NO: 54, or SEQ ID NO: 55, or SEQ ID NO: 56, or SEQ ID NO: 57.Also provided are expression cassettes; vectors; transgenic plant cells; plants, plant parts, and seeds; isolated polypeptides; amplicons and informative fragments of the presently disclosed nucleic acids; compositions that include amplification primer pairs; methods for producing plants that exhibit HI; methods for identifying the presence or absence of an allele associated with HI in a plant; methods for introgressing Haploid—inducing nucleotide sequences into plants; and methods for selecting parental plants predicted to produce progeny generations with plants that exhibit Haploid Induction trait.
摘要翻译: 还提供了表达盒; 向量 转基因植物细胞; 植物,植物部分和种子; 分离的多肽; 目前公开的核酸的扩增子和信息片段; 包括扩增引物对的组合物; 生产展示HI的植物的方法; 用于鉴定植物中与HI相关的等位基因的存在或不存在的方法; 将单倍体诱导核苷酸序列插入植物的方法; 以及用于选择预期用表现单倍体诱导性状的植物产生后代的亲本植物的方法。
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公开(公告)号:US20150191771A1
公开(公告)日:2015-07-09
申请号:US14150938
申请日:2014-01-09
CPC分类号: A01H1/04
摘要: The present invention belongs to the field of sampling of biological materials. In particular, it relates to tissue or cellular content extraction from immature corn embryos while retaining the viability of said embryos.
摘要翻译: 本发明属于生物材料取样领域。 特别地,其涉及从未成熟的玉米胚胎提取组织或细胞内容物,同时保留所述胚胎的活力。
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