基于叶绿体SSR单倍型的普通杏演化关系
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辽宁省果树科学研究所,辽宁省果树科学研究所,辽宁省果树科学研究所,辽宁省果树科学研究所,辽宁省果树科学研究所,辽宁省果树科学研究所,辽宁省果树科学研究所,辽宁省果树科学研究所,辽宁省果树科学研究所

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国家自然科学基金项目(面上项目,重点项目,重大项目)


Phylogenetic relationship of common apricot (Prunus armeniaca) revealed by analysis of chloroplast SSR haplotypes
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Liaoning Institute of Pomology,Liaoning Institute of Pomology,Liaoning Institute of Pomology,Liaoning Institute of Pomology,Liaoning Institute of Pomology,Liaoning Institute of Pomology,Liaoning Institute of Pomology,Liaoning Institute of Pomology,Liaoning Institute of Pomology

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    摘要:

    为了研究普通杏的起源和不同品种群间的演化关系,以梅为组外对照,利用9对叶绿体SSR引物检测了来自不同品种群或野生类型的58份普通杏种质资源单倍型变化,并对单倍型网络演化进行了分析。共检测到22个等位基因,组成15个单倍型。普通杏以单倍型H01、H02和H03为优势单倍型,出现的频率分别为41.38%、17.24%和15.52%。除华南品种群外,其他品种群的栽培杏均以优势单倍型为主;西北地区的普通杏仅有单倍型H01、H02和H03,而新疆伊犁河谷的野生普通杏仅有2种单倍型H01和H02。同时,在东北品种群、华南品种群和西南地方品种中检测的单倍型数目均多于主栽产区。进一步对这些单倍型进行系统进化分析和网络图分析,发现所有单倍型可分为以H02为中心和以H01、H03为中心的2支,单倍型H01、H02位于网络图的中心。普通杏的叶绿体基因组进化较为保守,仅在较少部位产生了序列变异。在普通杏扩散过程中,边缘地区的种质资源不仅在基因组上存在着较多的基因渗透现象,而且其本身的基因组序列也产生了较多的适应性变异。

    Abstract:

    In order to study the origin of common apricot and the phylogenetic relationship of different cultivars group, phylogenetic tree and median-joining network of chloroplast haplotypes were analyzed by using 9 cpSSR primers to detected 58 materials from 9 cultivars groups and used 3 Prunus mume as control. The 22 alleles consisted of 15 haplotypes in 61 materials. H01 (haplotype 01), H02 and H03 which had higher frequency in common apricot were 3 dominant haplotypes. Most of the cultivars groups had dominant haplotypes except for South China cultivars group. The common apricot in Northwest had only 3 dominant haplotypes, while the wild common apricot in the Ili River valley in Xinjiang had only 2 dominant haplotypes but no other haplotype. At the same time, the number of haplotypes detected in the Northeast cultivars group, the South China cultivars group and the Southwest local cultivers were more than that of the main producing areas. The phylogenetic tree of 15 haplotypes showed that all common apricot haplotypes were clustered into 2 major branches. The first branch is based on H01 and H03, while the second branch is based on H02. The dominant haplotypes H01 and H02 were in the center of the median-joining network. The evolution of common apricot chloroplast genome was obviously conserved and there were a few mutations in the chloroplast genome. In the spreading process of the common apricot, the germplasm resource in cultivars groups distant from the center of origin such as South China, Northeast and Southwest cultivars groups had more introgression in chloroplast genome and there were more adaptable mutations in their chloroplast genome.

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魏潇,章秋平,刘威生,等.基于叶绿体SSR单倍型的普通杏演化关系[J].植物遗传资源学报,2018,19(4):705-712.

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  • 收稿日期:2017-11-03
  • 最后修改日期:2018-04-28
  • 录用日期:2017-12-29
  • 在线发布日期: 2018-07-16
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