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当前位置: 首页 > 文章 > 中国樱桃InDel标记开发及其在蔷薇科果树中通用性评价 园艺学报 2020 (1) 98-110
Position: Home > Articles > Development of Insertion-Deletion (InDel) Markers Based on Whole-genome Sequencing Data in Chinese Cherry and Their Transferability in Rosaceae Fruit Trees Acta Horticulturae Sinica 2020 (1) 98-110

中国樱桃InDel标记开发及其在蔷薇科果树中通用性评价

作  者：
王珏;王燕;张静;陈涛;王磊;陈清;汤浩茹;王小蓉
单  位：
四川农业大学生命科学学院;四川农业大学园艺学院;四川农业大学果蔬研究所
关键词：
中国樱桃;全基因组;InDel标记;蔷薇科果树;通用性
摘  要：
对栽培和野生中国樱桃进行De novo基因组测序和比对,在全基因组范围内检测筛选出50 617个InDel位点,并挑选均匀分布的200个标记进行验证,其中,27个标记在中国樱桃种内表现出多态性。利用多态性标记,对不同来源的192份中国樱桃(168份栽培和24份野生)种质进行基因型分型,共检测到60个等位基因(Na),平均每个标记2.2个;基因多样性指数(Hs)为0.010～0.500,平均0.239;多态性信息含量(PIC)为0.010～0.375,平均0.198,表明中国樱桃遗传基础相对狭窄。根据聚类结果和地理分布将192份中国樱桃种质大致划分为5个群体。筛选出在蔷薇科李亚科樱属、李属、桃属、杏属、苹果亚科梨属、苹果属和蔷薇亚科草莓属、悬钩子属等重要果树共8个属156个个体中表现出较好通用性标记34个。物种与中国樱桃亲缘关系越近,InDel标记的多态性越高。
译  名：
Development of Insertion-Deletion (InDel) Markers Based on Whole-genome Sequencing Data in Chinese Cherry and Their Transferability in Rosaceae Fruit Trees
作  者：
WANG Jue;WANG Yan;ZHANG Jing;CHEN Tao;WANG Lei;CHEN Qing;TANG Haoru;WANG Xiaorong;College of Horticulture,Sichuan Agricultural University;Institute of Pomology and Olericulture,Sichuan Agricultural University;College of Life Science,Sichuan Agricultural University;
关键词：
Cerasus pseudocerasus;;whole-genome;;Insertion-Deletion(InDel)marker;;Rosaceae fruit trees;;transferability
摘  要：
The De novo whole-genome sequencing data of cultivated and wild Chinese cherry [Cerasus pseudocerasus(Lindl.)G. Don]were applied to identify 50 617 InDel markers,and 200 markers with uniform distribution across the genome were selected to be evaluated. Twenty-seven polymorphic markers were identified,which accounted for 13.5% of screened markers. Among 192(168 cultivated and 24 wild)Chinese cherry accessions,a total of 60 allelic loci were detected using the 27 polymorphic markers,which meant that per marker corresponded to 2.2 allelic loci on average,with an average gene diversity(H_s)of 0.239(ranging from 0.010 to 0.500)and mean polymorphic information content(PIC)of 0.198(ranging from 0.010 to 0.375),indicating a relatively low genetic diversity. Population structure analysis and geographical location revealed five groups within Chinese cherry,which consisted of cultivated Chinese cherry in East and North China Plain,Qinling Mountains,Sichuan Basin,and Yun-Gui Plateau,and wild ones. Thirty-four of 200 InDel markers showed moderate transferability rate among 156 individuals from eight genera including Cerasus,Prunus,Amygdalus,Armeniaca,Pyrus,Malus,Fragaria,and Rubus of the subfamilies Prunoideae,Maloideae,and Rosoideae in the family Rosaceae with important economic values. The polymorphism of InDel markers were higher with the increasing relationships between species and Chinese cherry.

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