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dc.contributor.authorPongpun Prasankoken_US
dc.contributor.authorWachira Srikoomen_US
dc.contributor.authorSomsak Panhaen_US
dc.contributor.otherSrinakharinwirot Universityen_US
dc.contributor.otherMahidol Universityen_US
dc.identifier.citationBiochemical Systematics and Ecology. Vol.37, No.4 (2009), 452-458en_US
dc.description.abstractAllozyme variation in viviparid snails from the genus Mekongia in Thailand were examined across the different species, subspecies and geographical locations (river drainage systems). Using horizontal starch gel electrophoresis, 11 presumed allozyme loci (eight polymorphic) from eight enzyme systems were screened. Heterozygosity was moderately low (Hexp = 0.000-0.109, mean = 0.037). One population of Mekongia pongensis (Nong Khai) was monomorphic at all 11 examined loci in contrast to the other two populations, suggesting bottleneck within this population. Populations were more differentiated in the Mekongia sphaericula complex (FST= 0.587) than in either the Mekongia swainsoni complex (FST= 0.161) or M. pongensis species (FST= 0.073). Mekongia sphaericula sphaericula and Mekongia sphaericula extensa exhibited fixed allele differences at two loci, a high genetic distance (D = 0.265-0.300) and a potential polyphyletic relationship, suggesting two distinct lineages (species). © 2009 Elsevier Ltd. All rights reserved.en_US
dc.rightsMahidol Universityen_US
dc.subjectAgricultural and Biological Sciencesen_US
dc.subjectBiochemistry, Genetics and Molecular Biologyen_US
dc.titleGenetic variation amongst viviparid snails in the genus Mekongia (Prosobranchia: Viviparidae) in Thailanden_US
Appears in Collections:Scopus 2006-2010

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