我国辣椒种质资源eIF4E基因多态性分析
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公益研究所基金(ICS,CAAS ) (1610032011011);国家863项目(2012AA100103002);中国农业科学院科技创新工程;创新工程农业部大宗蔬菜技术产业体系(CARS-25),农业部蔬菜遗传与生理开放实验室项目


Analysis of polymorphism of eIF4E in pepper germplasm resources(Capsicum spp.)of China
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Fund for Public Welfare Institute (ICS, CAAS) (1610032011011); the National 863 Project (2012AA100103002); the Chinese Academy of Agricultural Sciences science and technology innovation project; innovation project of Ministry of agriculture vegetable industrial technology system (CARS-25), the Ministry of agriculture Vegetable Genetics and physiology laboratory project

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    摘要:

    利用国家蔬菜种质资源库 辣椒资源1904份材料,采用测序技术获得eIF4E(eukaryotic translation initiation 4E)基因exon1序列,研究eIF4E基因多样性及我国辣椒种质资源群体多样性。结果表明:在1904份材料中共发现17个单倍型,14个有义多态性位点,其中9个为新的位点,位点大多集中在eIF4E蛋白表面环上; 8个地理群体的平均单倍型多样性(Hd)和平均核苷酸多样性(Pi)分别为0.519和0.00210;群体间分化指数(Fst值)及基因流(Nm)表明不同群体间表现为差异的分化程度;AMOVA分析表明总变异主要来源于群体内个体间的变异(97.23%),只有2.77%变异发生在群体间。本研究将有助于了解我国辣椒eIF4E基因多样性,为抗PVY育种挖掘更多抗源材料。

    Abstract:

    Exon 1 of eIF4E gene (eukaryotic translation initiation 4E) of 1904 pepper accessions from National Vegetable Germplasm Bank in China was sequenced and researched on the diversity . The results showed: 17 haplotypes were found among the 1904 accessions and 9 new sites in the 14 sense polymorphic loci which mostly concentrated on the eIF4E protein surface ring; the average haplotype diversity(Hd) and average nucleotide diversity(Pi) of 8geographic populations were 0.519 and 0.00210; differentiation index(Fst value) and gene flow(Nm) between populations showed that it performs different degree of differentiation among groups; AMOVA analysis showed that the total variation comes mainly from individuals within populations(97.23%), only 2.77% of the variation occurred between populations. This research is helpful to understand the diversity of the eIF4E gene, providing more resistant resources for pepper PVY resistance breeding.

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王学瑛,张正海,王海平,等.我国辣椒种质资源eIF4E基因多态性分析[J].植物遗传资源学报,2016,17(1):120-125.

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  • 收稿日期:2015-02-14
  • 最后修改日期:2015-03-23
  • 录用日期:2015-09-14
  • 在线发布日期: 2016-01-19
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