龙须草生态型的划分及其遗传差异的AFLP分析

 利用AFLP分子标记技术，结合形态学特征观察和叶片纤维素等成分含量的测定，将来自4个省的9个不同居群的龙须草划分为4种生态型：窄叶类型（湖北）、浓绿叶类型（广西）、红秆类型（陕西）和宽叶类型（河南）；来自同一地区的不同居群之间，遗传差异很小，聚为同一种生态型；同一居群内不同无融合生殖个体之间未检测到差异；分析了不同生态型之间的遗传差异和亲缘关系；讨论了AFLP技术在无融合生殖植物的分类和遗传学研究中的应用前景。

Genetic Diversity and Classification of Ecotypes of Eulaliopsis binata via Morphological Traits and AFLP Markers

AFLP markers and morphological observation were used to identify the ecotypes of Eulaliopsis binata, which was reported as an apomictic species in Poaceae. The result showed that there is a large diversity among different ecotypes but a little within each population. By cluster analysis based on AFLP data, four ecotypes were identified as follows: slender-leaf ecotype (Hubei), deep-green-leaf ecotype(Guangxi), red-haulm ecotype (Shaanxi) and wide-leaf ecotype (Henan). The utilizations of AFLP markers in classification and further investigation of apomictic plants were discussed as well.