中国农业科学 ›› 2012, Vol. 45 ›› Issue (12): 2537-2543.doi: 10.3864/j.issn.0578-1752.2012.12.024

• 研究简报 • 上一篇    下一篇

利用微卫星多态性揭示酿酒酵母菌株遗传多样性

 冯敏, 王春晓, 刘延琳   

  1. 西北农林科技大学葡萄酒学院,陕西杨凌 712100
  • 收稿日期:2011-01-19 出版日期:2012-06-15 发布日期:2012-04-18
  • 通讯作者: 通信作者刘延琳,E-mail:yanlinliu@nwsuaf.edu.cn
  • 作者简介:冯 敏,Tel:15249222134;E-mail:minfeng0608@gmail.com
  • 基金资助:

    国家葡萄产业技术体系建设专项经费资助(CARS-30-jg-03)

Genetic Diversity of Saccharomyces cerevisiae Strains Revealed by Microsatellite Sequence Polymorphism

 FENG  Min, WANG  Chun-Xiao, LIU  Yan-Lin   

  1. 西北农林科技大学葡萄酒学院,陕西杨凌 712100
  • Received:2011-01-19 Online:2012-06-15 Published:2012-04-18

摘要: 【目的】利用微卫星标记技术对来自新疆和宁夏的48株酿酒酵母菌株进行区分,并分析其亲缘关系。【方法】选择4个微卫星位点:SCAAT1、SCYOR267c、C11和YPL009c,用其多态性对48个菌株进行分析。【结果】4个微卫星标记在48株菌中共检测到87个等位基因,39种基因型;4个位点多态信息含量为0.8593—0.9115,均为高度多态位点;期望杂合度(heterozygosity expected, He)和观测杂合度(heterozygosity observed, Ho)分别为0.8803—0.9268和0.8333—0.9792。【结论】宁夏和新疆地区酿酒酵母菌株生物多样性丰富。

关键词: 酿酒酵母, 微卫星标记, 菌株区分, 生物多样性 ,  ,  ,  ,  ,  ,  

Abstract: 【Objective】A total of 48 Saccharomyces cerevisiae strains from Xinjiang and Ningxia regions were typed by 4 microsatellite markers, and the genetic relations among the strains were also analyzed.【Method】A total of 48 Saccharomyces cerevisiae strains were discriminated for polymorphism at the 4 selected loci: SCAAT1, SCYOR267c, C11, and YPL009c.【Result】A total of 87 alleles, which generated 39 genotypes, were found. The polymorphism information contents (PIC) of all strains at 4 loci were 0.8593-0.9115, suggesting that the 4 SSR loci were hypervariable. The heterozygosity expected and heterozygosity observed were 0.8803-0.9268 and 0.8333-0.9792, respectively.【Conclusion】The results showed the diversity of Saccharomyces cerevisiae strains in Ningxia and Xinjiang regions.

Key words: Saccharomyces cerevisiae, microsatellite markers, strain typing, biodiversity