金钱鱼基因组微卫星分布特征分析及多态性标记开发Distribution Patterns of Microsatellites and Development of Polymorphic Markers from Scatophagus argus Genome
王耀嵘,杨尉,任席林,江东能,邓思平,陈华谱,朱春华,李广丽
摘要(Abstract):
【目的】研究金钱鱼(Scatophagus argus)全基因组微卫星分布特征,筛选高多态性微卫星(SSR)标记。【方法】利用MISA软件对金钱鱼基因组中微卫星进行筛选并分析分布特征,利用聚丙烯酰胺凝胶电泳和毛细管电泳筛选高多态性位点。【结果与结论】金钱鱼基因组总共挖掘390967个SSR位点,相对丰度为653个/Mb。二碱基重复类型最多(52.64%),微卫星标记整体偏向A+T碱基组合。筛选出23对多态性标记位点,其中7对的等位基因数为4~11,期望杂合度为0.431~0.859,观测杂合度0.417~0.861,多态性含量为0.389~0.830。经Bonferroni校正后,5个位点符合哈德温伯格平衡,且位点间不存在连锁不平衡现象。
关键词(KeyWords): 金钱鱼;基因组survey测序;微卫星;标记开发
基金项目(Foundation): 国家重点研发计划“蓝色粮仓科技创新”重点专项(2018YFD0901203);; 广东省自然科学基金(2019A1515010958、2019A1515012042);; 广东省科技厅科技创新战略专项重点项目(2018B030311050);; 广东省普通高校青年创新人才项目(2017GKQNCX092)
作者(Author): 王耀嵘,杨尉,任席林,江东能,邓思平,陈华谱,朱春华,李广丽
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