数字农科院2.0

‘安娜贝拉’绣球花转录组的SSR位点信息分析

文献类型: 中文期刊

作者: 王东栋;孙悦;尹茂;柯艳果

作者机构:

关键词: 绣球;转录组;SSR

期刊名称:分子植物育种

ISSN: 1672-416X

年卷期: 2023 年

页码:

收录情况: 北大核心(2020版) ; ; 科技核心(2023版) ; ; 农林核心(2020版)

摘要: 为开发绣球功能基因多态性SSR分子标记,本研究以‘安娜贝拉’绣球花盛花期花朵为试验材料,对其萼片进行Illumina高通量测序,经过系列分析得到Unigene,使用MISA对得到的Unigene进行SSR挖掘和筛选,利用Primer premier 5.0软件进行SSR引物设计,以得到SSR位点分布信息、出现频率等。结果表明,在122 490条Unigenes中发现43 612条分布有SSR位点,共检测到71 884个SSR位点,平均分布长度为1 510.92 bp。在所有SSR位点中,二核苷酸和单核苷酸重复的数量最多,分别为32 971个(45.87%)和32 011个(44.53%)。71 884个SSR位点共包含175种基序类型,重复次数范围为5~84次,且大部分集中在6~12次,有18.85%的SSR位点基序长度大于20 bp,另外重复基序为A/T、AG/CT、AT/AT、AC/GT、AAG/CTT和ACC/GGT的位点是优势位点,数量均大于1 000。本研究为绣球多态性SSR标记的筛选和利用提供参考。

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