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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    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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History
  • Received:February 14,2015
  • Revised:March 23,2015
  • Adopted:September 14,2015
  • Online: January 19,2016
  • Published:
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