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中国农学通报 ›› 2023, Vol. 39 ›› Issue (5): 33-38.doi: 10.11924/j.issn.1000-6850.casb2022-0152

• 生物科学 • 上一篇    下一篇

玉米和高粱SSR标记在薏苡中的通用性研究

付瑜华1(), 蒙秋伊1, 尚昆1, 李秀诗1, 刘凡值1, 李祥栋2()   

  1. 1 贵州省农业科学院,贵州省亚热带作物研究所,贵州兴义 562400
    2 黔西南州农业林业科学研究院,贵州兴义 562400
  • 收稿日期:2022-03-07 修回日期:2022-06-15 出版日期:2023-02-15 发布日期:2023-02-06
  • 作者简介:

    付瑜华,女,1980年出生,河南开封人,副研究员,博士,研究方向:种质资源与分子育种。通信地址:562400 贵州省兴义市峰林东路1号贵州省亚热带作物研究所,Tel:0859-3452853,E-mail:

  • 基金资助:
    国家自然科学基金项目“薏苡仁油含量与相关候选基因的关联分析”(31801435); 黔西南州科技计划项目“优异薏苡种质资源圃建设”(2020-1-02); 贵州省农科院重点科技成果培育项目(黔农科院成培计[2021]02号); “两江一河”热带(亚热带)精品果树产业发展子项(黔农科院精品水果产业专项[2021]01号)

SSR Markers of Maize and Sorghum: The Transferability in Adlay

FU Yuhua1(), MENG Qiuyi1, SHANG Kun1, LI Xiushi1, LIU Fanzhi1, LI Xiangdong2()   

  1. 1 Guizhou Institute of Subtropical Crops, Guizhou Academy of Agricultural Sciences, Xingyi, Guizhou 562400
    2 Southwest Guizhou Institute of Agricultural and Forestry Sciences, Xingyi, Guizhou 562400
  • Received:2022-03-07 Revised:2022-06-15 Online:2023-02-15 Published:2023-02-06

摘要:

旨在分析玉米和高粱SSR标记在其近缘种薏苡中的通用性和多态性,以期筛选可用于薏苡种质资源和遗传学研究的分子标记。以11份薏苡资源为供试材料,利用SSR-PCR扩增和毛细管电泳检测方法,对364对SSR引物进行了测试和筛选。结果表明,364对玉米和高粱来源的标记中有163对能在薏苡中扩增并得到清晰的条带,其中44对标记在薏苡中表现出良好的多态性。高粱SSR的通用性和多态性比例分别为58.02%和30.85%,玉米SSR标记的通用性和多态性比例分别为23.45%和26.47%,高粱SSR标记在薏苡中通用性和多态性更好。44对引物在11份薏苡材料中扩增出110条多态性条带,每对引物扩增出的条带数在1~5条之间,平均为2.5条,PIC为0.15~0.79,其中15对引物的PIC值大于0.5,占全部多态性引物的34.09%。筛选出的通用SSR引物可为薏苡种质资源多样性和分子遗传学研究提供可用的遗传标记,也是高粱、玉米和薏苡3种作物之间比较基因组学研究的有力工具。

关键词: 玉米, 高粱, 薏苡, SSR标记, 通用性

Abstract:

In order to select available molecular makers for adlay germplasm and genetics research, the transferability and polymorphism of SSR markers from maize and sorghum were tested in adlay. 11 adlay germplasms were selected as materials, and then 364 SSR primers from maize and sorghum were screened by SSR-PCR and capillary electrophoresis methods. The results showed that 163 out of the 364 markers were successfully amplified in adlay, among which 44 markers showed well polymorphism. The percentage of transferability and polymorphism of SSR markers from sorghum were 58.02% and 30.85%, respectively, while those from maize were 23.45% and 26.47%, respectively. Sorghum SSR markers exhibited better transferability and polymorphism in adlay. A total of 110 alleles were amplified using the 44 SSR primers in the 11 adlay germplasms, with a number of bands ranging from 1 to 5 (an average of 2.5). PIC ranged from 0.15 to 0.79 and 15 SSR primers had PIC greater than 0.5, accounting for 34.09% of the total polymorphic SSR primers. Therefore, the transferable markers could provide useful genetic markers for germplasm diversity and molecular genetics research in adlay, and they could also be a powerful tool for comparative genomics among sorghum, maize and adlay.

Key words: maize, sorghum, adlay, SSR markers, transferability