Identification of a stable major QTL for fresh-seed germination on chromosome Arahy.04 in cultivated peanut (Arachis hypogaea L.)

文献类型： 外文期刊

第一作者： Zhang, Maoning

作者： Zhang, Maoning;Liu, Hua;Qi, Feiyan;Sun, Ziqi;Miao, Lijuan;Li, Xiaona;Li, Chenyu;Guo, Junjia;Xu, Jing;Shi, Lei;Tian, Mengdi;Dong, Wenzhao;Huang, Bingyan;Zhang, Xinyou;Zhang, Maoning;Li, Xiaona;Li, Chenyu;Guo, Junjia;Zeng, Qing;Liu, Debing;Zhang, Mengyuan

作者机构：

关键词： Peanut; QTL mapping; Fresh -seed germination (FSG); Dynamic germination; KASP

期刊名称：CROP JOURNAL （ 影响因子：4.647； 五年影响因子：5.781 ）

ISSN： 2095-5421

年卷期： 2022 年 10 卷 6 期

页码：

收录情况： SCI

摘要： Fresh-seed germination (FSG) impairs peanut production, especially in areas where the peanut harvest season coincides with rainy weather. Developing FSG-resistant cultivars by molecular breeding is expected to mitigate yield loss and quality impairment caused by FSG. However, the genetic control of FSG awaits elucidation. In this study, FSG at 1, 3, 5, 7, and 9 days post-imbibition in three environments were tested, and quantitative-trait loci (QTL) associated with FSG were mapped in a peanut recombinant inbred line population by leveraging existing high-density peanut genetic maps. Of 24 QTL identified in 13 linkage groups, qFSGA04 was a stable major QTL on linkage group 04 (LG04). It was consistently detected in five germination stages and three environments. By designing and validating DNA markers in the confidence interval of qFSGA04, we identified one single-nucleotide polymorphism and one InDel closely associated with FSG that could be used as linked markers for FSG resistance in peanut breeding.(c) 2022 Crop Science Society of China and Institute of Crop Science, CAAS. Production and hosting by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. This is an open access article under the CC BY-NC -ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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