%0 Journal Article
%T CLONAL DIVERSITY IN LEYMUS CHINENSIS POPULATIONS<br>羊草种群克隆多样性的初步研究
%A ZU Yuan-Gang
%A and CUI Ji-Zhe
%A <br>祖元刚
%A 崔继哲
%J 植物生态学报
%D 2002
%I Editorial Office of Chinese Journal of Plant Ecology
%X Leymus chinensis is a clonal plant species that reproduces both asexually by below-ground rhizomes and sexually by seed. Its clonal diversity was studied in 11 populations of 2 leaf-colored types (gray green and yellow green) in Songnen Plain of China using horizontal starch gel electrophoresis. The clonal diversity was high in the species. The mean of Simpson's index was 0.983, and 97.7% of genotypes were local genotypes. Seedling recruitment and selection caused by environmental heterogeneity may be the important factors in maintaining the polymorphism. On the clonal characters, the 2 types of gray green and yellow green were obvious different. The clonal diversity was lower in yellow green type than that in gray green type. The genetic diversity calculated on the data from genets was consistent with that from the ramets. The result confirmed that there was obvious genetic differentiation between the 2 types of Leymus chinensis-the gray green and the yellow green type.
%K Leymus chinensis
%K Clonal diversity
%K Genetic differentiation<br>羊草(Leymus
%K chinensis)
%K 克隆多样性
%K 遗传分化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=2F2173CCFF292BF447DC2681EA33BBAE&aid=F787AB07ED784250&yid=C3ACC247184A22C1&vid=96C778EE049EE47D&iid=0B39A22176CE99FB&sid=0B4F496D54044D86&eid=F1177A9DF1349B63&journal_id=1005-264X&journal_name=植物生态学报&referenced_num=9&reference_num=27