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    • 4. 发明授权
    • Yield traits for maize
    • 玉米产量性状
    • US08809621B2
    • 2014-08-19
    • US12536147
    • 2009-08-05
    • Venkata Krishna KishoreLibardo Andres Gutierrez RojasZhigang GuoJoseph Byrum
    • Venkata Krishna KishoreLibardo Andres Gutierrez RojasZhigang GuoJoseph Byrum
    • A01H1/02A01H5/10
    • A01H1/04A01H3/00A01H5/10C12N15/8261C12Q1/6895C12Q2600/13
    • Methods for introgressing an allele of interest of a locus associated with a yield trait into Zea mays germplasm are provided. In some embodiments, the methods include providing a Zea mays plant that contains an allele of interest of a locus associated with a yield trait, wherein the locus associated with the yield trait is identifiable by PCR amplification of a Zea mays nucleic acid with a pair of oligonucleotides primers as disclosed herein, and introgressing the allele of interest into Zea mays germplasm that lacks the allele. Also provided are methods for identifying Zea mays plants that contain at least one allele associated with improved yield, improved maize plants, elite Zea mays plants, biomass produced from improved Zea mays plants, isolated and purified genetic markers, and compositions that include an amplification primer pair capable of amplifying a Zea mays nucleic acid to generate a Zea mays marker amplicon.
    • 提供了将与产量性状相关的基因座感兴趣等位基因浸入玉米种质的方法。 在一些实施方案中,所述方法包括提供包含与产量性状相关的基因座的目的等位基因的玉米种植体,其中与产量性状相关的基因座可通过具有一对玉米的玉米核酸的PCR扩增来鉴定 寡核苷酸引物,并将感兴趣的等位基因渗入缺少等位基因的玉米种质。 还提供了用于鉴定含有至少一个与改良产量相关的等位基因的Zea mays植物的方法,改良的玉米植物,精英玉米植物,由改良的Zea mays植物产生的生物,分离和纯化的遗传标记,以及包含扩增引物 能够扩增Zea mays核酸以产生Zea mays标记扩增子。
    • 7. 发明申请
    • STATISTICAL VALIDATION OF CANDIDATE GENES
    • 候选基因的统计验证
    • US20100145624A1
    • 2010-06-10
    • US12328689
    • 2008-12-04
    • Venkata Krishna KishoreDaolong WangLibardo Andres Gutierrez RojasNicolas Federico Martin
    • Venkata Krishna KishoreDaolong WangLibardo Andres Gutierrez RojasNicolas Federico Martin
    • G06F19/00
    • G16B20/00G16B40/00
    • Provided herein are methods for evaluating associations between candidate markers and a trait of interest in a plant population. In various embodiments, the plant population is a breeding population, particularly early stage breeding populations. The methods include obtaining a genotypic value for candidate markers and correlating the marker with the trait. Various association models can be used to evaluate the association, and include statistical methods relevant to the structure of plant breeding populations. Population structure may be accounted for in the association models by using Principle Component Analysis. Further provided is a novel statistical approach for association mapping in early stage breeding materials using a transmission disequilibrium based methodology. Markers identified using the methods of the invention can be used in marker assisted breeding and selection, for constructing genetic linkage maps, to identify genes contributing to a trait of interest, and for generating transgenic plants having a desired trait.
    • 本文提供了用于评估候选标记与植物群体中感兴趣的性状之间的关联的方法。 在各种实施方案中,植物群体是育种群体,特别是早期育种群体。 所述方法包括获得候选标记的基因型值并将标记与性状相关联。 可以使用各种关联模型来评估关联,并且包括与植物育种种群结构相关的统计学方法。 人口结构可以通过使用主成分分析在关联模型中加以考虑。 进一步提供了一种用于使用基于传输不平衡的方法的早期育种材料中的关联定位的新颖的统计方法。 使用本发明的方法鉴定的标记物可用于标记辅助育种和选择,用于构建遗传连锁图谱,鉴定有助于感兴趣性状的基因以及产生具有期望性状的转基因植物。