PJB-2011-364
POPULATION GENETICS OF INVASIVE WEED MIMOSA PIGRA L. (MIMOSOIDEAE) IN THAILAND
PAIROT PRAMUAL1*, SUTTIRA KHUMKRATOK2 AND KOMGRIT WONGPAKAM2
Abstract
Mimosa pigra L. is widely considered one of the 100 worst invasive species. Native to tropical America this species is now distributed worldwide where it causes severe impact in many regions. Population genetic data could provide important information for management of this species yet to date such study is lacking. The objectives of this effort include assessment of levels of genetic variation and genetic structure of M. pigra in Thailand using RAPD markers. Samples were collected from 11 populations throughout Thailand. Relatively high levels of genetic variation within populations were revealed, suggesting a lack of substantial population bottlenecks. The overall FST value of 0.271 (p
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