HUBEI AGRICULTURAL SCIENCES ›› 2020, Vol. 59 ›› Issue (15): 151-154.doi: 10.14088/j.cnki.issn0439-8114.2020.15.030

• Biological Engineering • Previous Articles     Next Articles

Genetic character analysis of two wild mulberry varieties in Ankang based on chloroplast matK gene sequence

WANG Rui-xian1, CHU Qu2, PENG Yun-wu2, MENG Gang2, LIANG Jia-jun2, ZHOU Xiao-fan1   

  1. 1. School of Modern Agriculture and Biotechnology, Ankang University, Ankang 725000, Shaanxi, China;
    2. Shaanxi Key Laboratory of Sericulture, Ankang University, Ankang 725000, Shaanxi, China
  • Received:2019-10-21 Online:2020-08-10 Published:2020-09-24

Abstract: The matK gene sequences of two wild mulberry that collected form Huangshitan and Baxian town (Ankang city, Shaanxi province) have been obtained by PCR. The length of amplified sequences is 1 715 bp while the ORF is 1 518 bp. Only one base difference when compared with each other. The genetic variations of 7 mulberry have been analyzed with the matK genes. The results showed that 6 variable sites were detected, which defined 3 haplotypes in Morus alba, and the haplotype diversity was 0.714. The nucleotide diversity was 0.001 32 and the average nucleotide difference was 2.000 respectively. As for the genetic distances, Baxian was closer to M. indica and M. multicaulis, while Huangshitan was closer to M. mongolica and M. cathayana. Cluster analysis demonstrated that the seven mulberries were grouped together, and the branch was shorter than other species, implied lower genetic diversity and fewer evolutionary events proceeded.

Key words: Morus alba L., phylogenetic analysis, genetic diversity, chloroplast, matK

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