Dynamic QTL mapping for plant height in the hybrid population ofAgropyronGaertn.

文献类型： 外文期刊

第一作者： Che, Yonghe

作者： Che, Yonghe;Song, Nan;Yang, Yanping;Yang, Xinming;Zhang, Yan;Zhang, Jinpeng;Han, Haiming;Li, Xiuquan;Zhou, Shenghui;Li, Lihui;Liu, Weihua

作者机构：

关键词： AgropyronGaertn; conditional QTL; CP hybrid population; plant height; unconditional QTL

期刊名称：PLANT BREEDING （ 影响因子：1.832； 五年影响因子：1.956 ）

ISSN： 0179-9541

年卷期： 2020 年 139 卷 5 期

页码：

收录情况： SCI

摘要： Plant height (PH) plays a very important role for plant breeding and also serves as a model trait to dynamic development study. The dynamic quantitative trait locus (QTL) analysis for PH ofAgropyronGaertn. was carried out in a cross-pollination (CP) hybrid population ofA.Gaertn. based on the phenotypic data of PH at different developmental stages in four year-sites and the constructed single-nucleotide polymorphism (SNP) genetic map. The results showed that 69 QTL and nine major QTL were detected by unconditional QTL mapping. A total of 107 QTL and 13 major QTL were found using conditional QTL mapping. Forty-seven QTL were detected by two methods. Two unconditional QTL,Qph2-5andQph3-4,were expressed as major and stable QTL for PH. Four major stable conditional QTL for PH,cQph4-1,cQph4-8, cQph6-2andcQph6-7, were detected. Two conditional PH QTL,cQph3-5andcQPh3-7, were identified in four environments over multiple stages. The gene/QTL controlling PH was expressed in a certain spatiotemporal manner. These results could also provide a reference for genetic and breeding research of related plant.

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