Ribosomal DNA restriction fragment length polymorphisms in Rhizoctonia solani
Ribosomal DNA restriction fragment length polymorphisms in Rhizoctonia solani
复制标题
立枯丝核菌核糖体DNA限制性片段长度多态性
DOI：
10.1094/phyto-80-151
复制
发表时间：
1990
期刊：
影响因子：
3.2
通讯作者：
D. González
中科院分区：
文献类型：
--
作者：
R. Vilgalys;D. González
(...)来自吻合组3、4、7、8和BI的分离物都具有每个种内组特有的单一不变RFLP。AG-1-IB、AG-1-IC、AG-2-2和AG-9内的分离株也具有相对低水平的RFLP变异特征。相比之下，在AG-1-IA、AG-2-1、AG-5和AG-6内的分离物中观察到相对高水平的RFLP多样性。我们没有观察到任何明显的关系的RFLP水平在种内组和其他生物因子的变化（寄主范围，形态变异等）。相反，我们认为观察到的RFLP变异模式最有可能是种内和种间遗传分化的结果
(...) Isolates from anastomosis groups 3, 4, 7, 8, and BI all possess a single, invariant RFLP unique to each intraspecific group. A relatively low level of RFLP variation also was characteristic of isolates within AG-1-IB, AG-1-IC, AG-2-2, and AG-9. In contrast, a relatively high level of RFLP diversity was observed among isolates within AG-1-IA, AG-2-1, AG-5, and AG-6. We did not observe any obvious relationship between levels of RFLP within intraspecific groups and variation of other biological factors (host range, morphological variation, etc). Instead, we propose that the pattern of RFLP variation observed is most likely the result of genetic divergence within and among intraspecific groups