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Acta Horticulturae Sinica ›› 2022, Vol. 49 ›› Issue (6): 1339-1350.doi: 10.16420/j.issn.0513-353x.2021-0625

• Research Papers • Previous Articles     Next Articles

AFLP Analysis of Genetic Resources of Dendrobium from China

ZHANG Meng1, SHAN Yuying1, YANG Yebo1, ZHAI Feifei2, WANG Zhaoshan1, JU Guansheng1, SUN Zhenyuan1, LI Zhenjian1,*()   

  1. 1Key Laboratory of Tree Breeding and Cultivation,State Forestry Administration,Research Institute of Forestry,Chinese Academy of Forestry,Beijing 100091,China
    2School of Architectural and Artistic Design,Henan University of Technology,Jiaozuo,Henan 454000,China
  • Received:2022-03-13 Revised:2022-04-21 Online:2022-06-25 Published:2022-07-05
  • Contact: LI Zhenjian E-mail:zhenjianli@163.com

Abstract:

Dendrobium plants are mainly distributed in Yunnan,Guizhou and Sichuan Province in China. China is the distribution center of Dendrobium plants in the world. In this study,Amplified Length Polymorphism(AFLP)was used to study the genetic diversity and phylogenetic relationship of 92 species of Dendrobium in China. Ten primer combinations were screened out from 24 pairs of primer combinations,and a total of 2 329 loci were amplified,among which 2 307 were polymorphic,accounting for 99.04% of the total loci. Phylogenetic analysis results showed that 92 Dendrobium samples were divided into four groups,and the genetic differentiation was significant. AFLP molecular markers supported that the two species of D. leptocladum and D. xichouense were classified into Sect. Dendrobium,and D. hookerianum was divided into Sect. Holochrysa. The results also showed that the shape and texture of the stem were important characteristics for the classification of Dendrobium,and the flower lip and enlargement of stem node were not the main factors for Dendrobium classification.

Key words: Orchidaceae, Dendrobium, AFLP, amplification, phylogenetic relationship, genetic diversity

CLC Number: