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Molecular mapping for fruit-related traits, and joint identification of candidate genes and selective sweeps for seed size in melon

文献类型： 外文期刊

作者： Zhang, Hong 1 ; Zhang, Xuejun 1 ; Li, Meihua 1 ; Yang, Yong 1 ; Li, Zhiqiang 2 ; Xu, Yuhui 2 ; Wang, Haojie 1 ; Wang, Dengming 1 ; Zhang, Yongbing 1 ; Wang, Huaisong 3 ; Fu, Qiushi 3 ; Zheng, Jing 3 ; Yi, Hongping 1 ;

作者机构： 1.Xinjiang Acad Agr Sci, Hami Melon Res Ctr, Urumqi 830091, Xinjiang, Peoples R China

2.Adsen Biotechnol Co Ltd, Urumqi 830022, Peoples R China

3.Chinese Acad Agr Sci, Inst Vegetables & Flowers, Beijing 100081, Peoples R China

关键词： Resequencing; High-density genetic map; QTL; RNA-seq; Selective sweep; Melon; Fruit-and seed-related traits

期刊名称：GENOMICS （ 影响因子：4.31； 五年影响因子：4.38 ）

ISSN： 0888-7543

年卷期： 2022 年 114 卷 2 期

页码：

收录情况： SCI

摘要： Melon is a popular fruit vegetable crop worldwide with diverse morphological variation. We report a high density genetic map of melon and nine major QTLs with physical region ranging from 43.47 kb to 1.89 Mb. Importantly, two seed-related trait QTLs were repeatedly detected in two environments, and the mapping region was narrowed to 522 kb according to a regional linkage analysis. A total of 40 annotated genes were screened for nonsynonymous variations, of which EVM0009818, involved in cytokinin-activated signaling, was differentially expressed in the young fruits of parents based on RNA-seq. Selective sweep analysis identified 152 sweep signals for seed size, including the two seed-related QTLs and nine homologs that have been verified to regulate seed size in Arabidopsis or rice. This work illustrates the power of a joint analysis combining resequencing-based genetic map for QTL mapping and a combination of KASP genotyping and RNA-seq analysis to facilitate QTL fine mapping.

  • 相关文献

[1]Molecular mapping for fruit-related traits, and joint identification of candidate genes and selective sweeps for seed size in melon. Zhang, Hong,Zhang, Xuejun,Li, Meihua,Yang, Yong,Wang, Haojie,Wang, Dengming,Zhang, Yongbing,Yi, Hongping,Li, Zhiqiang,Xu, Yuhui,Wang, Huaisong,Fu, Qiushi,Zheng, Jing. 2022

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