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摘要:Twenty-nine apricot accessions from the North China were analyzed with fifty-five SSR markers from TE map.All the SSR markers were analyzed over the genome and also compared among eight linkage groups.Linkage group 4was well performance in Na and Ne,in which marker BPPCT040 was prominent with the Ne of 8.46 and the Na of 10.For the assessment of genetic diversity,the observed heterozygosity(Ho) and the expected heterozygosity(He) were measured with an average of 0.419 and 0.644,furthermore with the highest values in linkage group 4 over all the chromosomes.The mean values of Shannon’s information index ranged from 0.9859 in linkage group 2 to 1.4773 in linkage group 8 with an average of 1.2025.All the apricot accessions were calculated under K=4 and grouped into four clusters according to Q value that inferred by STRUCTURE software based on model-based method.More than85%apricot accessions had max Q,which was more than 0.80 in four infered Q values.Four subgroups of 29 apricot accessions infered were irregular with their geographic origins based on result from STRUCTURE.Principal Coordinates Analysis(PCoA) showed three infered subgroups’ gene pools had closely relationship.North Chinese apricot’ gene flow in the Yellow River Basin area was very complex and frequent.The reason was likely the introduction of cultivation and selection by humanity of North China in the long history and the complexity between the various eco-geographical group for germplasm penetration.
会议名称:

XVI International Symposium on Apricot Breeding and Culture and XV Chinese National Symposium on Plum and Apricot

会议时间:

2015-06-29

会议地点:

Shenyang, China

  • 专辑:

    农业科技

  • 专题:

    园艺

  • 分类号:

    S662.2

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