Intraspecific phylogeography of Carchesium polypinum (Peritrichia, Ciliophora) from China, inferred from 18S-ITS1-5.8S ribosomal DNA  

作　　者：MIAO Wei, YU Yuhe, SHEN Yunfen & ZHANG XiyuanDonghu Experimental Station of Lake Ecosystems, Chinese Academy of Sciences, Wuhan 430072, China Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China College of Life Sciences, Wuhan University, Wuhan 430072, China 

出　　处：《Science China(Life Sciences)》2004年第1期11-17,共7页中国科学（生命科学英文版）

摘　　要：Based on the variation of site 34, 46, 241, 305 and 322 in the 18S-ITS1 rDNA sequence, 19 Carchesium polypinum populations collected from eight provinces of China were separated into northern and southern population along the delineation between the Yangtze River and the Pearl River. This geographic distribution pattern of Carchesium polypinum maybe results from two factors: the vicariance resulting from the formation of the delineation between the Pearl River and the Yangtze River accompanied with the uplift of Qinghai-Xizang Plateau, and the different dispersal paths of C. polypinum affected by the climate.Based on the variation of site 34, 46, 241, 305 and 322 in the 18S-ITS1 rDNA sequence, 19 Carchesium polypinum populations collected from eight provinces of China were separated into northern and southern population along the delineation between the Yangtze River and the Pearl River. This geographic distribution pattern of Carchesium polypinum maybe results from two factors: the vicariance resulting from the formation of the delineation between the Pearl River and the Yangtze River accompanied with the uplift of Qinghai-Xizang Plateau, and the different dispersal paths of C. polypinum affected by the climate.

关 键 词：Carchesium polypinum  phylogeography  18S-ITS1 RDNA sequence  population  vicariance  dispersal  Quaternary. 

分 类 号：Q78[生物学—分子生物学]