SSR analysis of the genetic diversity of banana variety (line) _ | 香蕉品种(系)遗传多样性的SSR分析___
2011
Wang Jingyi, Chinese Academy of Tropical Agricultural Sciences,Haikou (China) | Ji Xiaorui, Chinese Academy of Tropical Agricultural Sciences,Haikou (China) | Wu Yaoting, Chinese Academy of Tropical Agricultural Sciences,Haikou (China)
chinois. ［目的］从分子水平上研究香蕉种质资源的遗传多样性和亲缘关系，建立分子水平香蕉分类系统。［方法］应用SSR技术从分子水平上对32个香蕉品种（系）的遗传关系进行检测。［结果］ 39对SSR引物在32个品种（系）中扩增带数在4～20个，平均每个SSR座位可检测2.78个多态性带，引物的多态信息量（PIC）在0.45～0.91，平均0.80。依据SSR数据计算的品种间遗传距离在3.06%～43.61%，平均30.73%。［结论］香蕉品种之间存在较为丰富的遗传变异。_
Afficher plus [+] Moins [-]anglais. ［Objective］ The genetic diversity and relationship of the banana germplasms were analyzed at the molecular level in order to establish the classification system of bananas at molecular level.［Method］ The genetic relationship of 32 banana varieties(lines) was detected with the SSR technology.［Results］ The number of amplified band of 32 varieties (lines) based on 39 pairs of SSR primers was ranged from 4 to 20,the average 2.78 SSR polymorphic bands could be detected in each primer site and the polymorphism information content (PIC) was 0.45-0.91(average value of 0.80).The genetic distance among varieties was 3.06%-43.61%(30.73% on average) according to the calculation of SSR data.［Conclusion］ There was the relatively rich genetic variation among banana cultivars._
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