Biodiv Sci ›› 2019, Vol. 27 ›› Issue (10): 1122-1131.DOI: 10.17520/biods.2019180

• Original Papers:Ecosystem Diversity • Previous Articles     Next Articles

Diversity of Cytospora chrysosperma from different hosts in Xinjiang

Zhao Ying1,Ma Rong1,Yin Yongxiang2,Zhang Zhidong3,Tian Chengming4,*()   

  1. 1 College of Forestry and Horticulture, Xinjiang Agricultural University, Urumqi 830052
    2 Forestry Research Institute, Xinjiang Agricultural University, Urumqi 830052
    3 Institute of Microbiology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091
    4 Key Laboratory for Silviculture and Conservation of Ministry of Education College of Forestry, Beijing 100083
  • Received:2019-05-29 Accepted:2019-08-09 Online:2019-10-20 Published:2019-10-20
  • Contact: Tian Chengming

Abstract:

Cytospora chrysosperma is a very important pathogenic fungus that can be infects many different trees. Currently, the diversity, phylogenetic and genetic relationships of C. chrysosperma remain unclear as host differences could cause substantial genetic and diverse differences among C. chrysosperma strains. To analyze the genetic, phylogenetic, and current diversity of C. chrysosperma, physiological and biochemical characteristics and genetic tests were performed from different hosts in Xinjiang. Using molecular markings Biolog-FF and ISSR, 47 strains of C. chrysosperma have been divided into 15 types. Strains were cultured and displayed varying culture characteristics and carbon source utilization and metabolic capacity traits. Each strain tended to utilize more carbon over time, however, strains varied in their carbon source preferences and metabolic capacities. Using cluster analysis, 47 strains of C. chrysosperma divided into two clusters based on genetic similarity (0.58), suggesting genetic structure is essential to understanding C. chrysosperma diversity, as host species and geographical origins were not significant.

Key words: Cytospora chrysosperma, cultural characteristics, Biolog-FF, ISSR