Acta Metallurgica Sinica 2007, 29(03) 293-299 DOI:      ISSN: 0412-1961 CN: 21-1139/TG

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Keywords
Clintonia udensis
Authors
Wang Yi-Ling1,2 , Zhao Gui-Fang1
PubMed
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Population Structure of Clintonia udensis (Liliaceae) in China

Wang Yi-Ling1,2 , Zhao Gui-Fang1

1 College of Life Science , Northwest University, Key Laboratory of Resource Biology and Biotechnology in Western China , Ministry of Education , Xi’an 710069 , China; 2 College of Life Science, Shanxi Normal University , Lifen 041004 , China

Abstract

In this study, 15 ISSR primers were used to reveal the genetic diversity and genetic structure of 17 Clintonia udensis populations. The results showed that a relatively high genetic diversity existed in C. udensis, with the percentage of
polymorphic bands ( PPB) from 11.90% to 59.52% at population level ranged , and 98.8% at species level. Moreover, a high level of genetic differentiation among populations was detected based on Shannon′s information index ( 0.6903 ), gene differentiation index GST (0.6944 ), and AMOVA analysis ( 81.47% ) ( P < 0.003 ). The variation of genetic distances among populations ranged from 0.1871 to 0.6632 (with an average of 0.3838), which was higher than that among intraspecies populations (0.05). The gene flow among populations ( Nm=0.2200) was much lower than that of the widespread
species ( Nm = 1 . 881) . In addition , there was no significant correlation between genetic distance and geographical distance among the population studied ( r = 0.029, P = 0.3196). The biological characteristics of this species, limited gene flow and genetic drift might account for the existence of relatively high inter-populational genetic variation . The high level of genetic diversity was probably related with its wide geographical distribution and its evolutionary history .

Keywords Clintonia udensis  
Received 2006-08-31 Revised 1900-01-01 Online:  
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Corresponding Authors: Zhao Gui-Fang
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1.YUAN Rong-Jun LI Ping ZHENG Xue-Jmg.MEGA-MICROSPOROGENESIS AND MEGA-MICROGAME- TOGENESIS AND CHANGES IN POLYSACCHARIDES IN CLINTONIA UDENSIS[J]. Acta Metallurgica Sinica, 1991,13(03): 1-3

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