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Genetic structure of the invasive Chromolaena odorata in China
Author(s) -
Ye W H,
Mu H P,
Cao H L,
Ge X J
Publication year - 2004
Publication title -
weed research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 74
eISSN - 1365-3180
pISSN - 0043-1737
DOI - 10.1111/j.1365-3180.2004.00381.x
Subject(s) - chromolaena odorata , genetic diversity , biology , range (aeronautics) , genetic variation , genetic structure , china , weed , botany , population , geography , genetics , gene , demography , materials science , archaeology , composite material , sociology
Summary Chromolaena odorata is one of the world's worst tropical weeds, and it can be found in Guangdong, Guangxi, Hainan and Yunnan provinces in China. Genetic variation of 27 C. odorata populations sampled from across its invasive range in China was investigated using inter‐simple sequence repeats (ISSR) analysis. All populations exhibited low levels of genetic variation. On average, 2.35% of the ISSR loci were polymorphic, total genetic diversity ( H T ) was 0.0406 and Shannon's information index ( H sp ) was 0.0623. High genetic identities ( I ) between populations (0.9687 ± 0.01204) indicated low genetic differentiation. A frequent founder effect was interpreted as the main cause of the genetic structure observed in C. odorata .