期刊论文

中文

菌物学报

1672-6472

2015

34

3

366-374

10.13346/j.mycosystema.140040

国家自然科学基金（31100479）；

本校为第一机构

研究了10个不同地区Colletotrichum fructicola菌株群体遗传结构。145个病菌样品ITS序列可推导出13种单倍体型(haplotype),其中,Haplotype 5为优势单倍型,有127个菌株。湖北随州地理种群与其他种群遗传分化极大,遗传分化指数(F_(ST))为0.14685-0.40385。AMOVA分析显示,种群间和种群内的遗传变异分别占总变异的13%和87%;Mantel测试显示地理距离与遗传分化没有显著的线性关系;该菌经历过种群扩张,群体间存在有效基因流。

nrDNA ITS sequences were used to analyze the genetic structure and genetic diversity of Colletotrichum fructicola populations consisting of 145 strains isolated from 10 sites. A total of 13 ITS haplotypes were identified among which the dominant haplotype （haplotype 5） included 127 specimens from the 10 sites. The genetic differentiation index, FST, revealed significant genetic differentiation between Suizhou populations and the others. AMOVA test showed that 13% of genetic differentiation occurred among population and 87% within population. ...