Publication: Genetic variation amongst viviparid snails in the genus Mekongia (Prosobranchia: Viviparidae) in Thailand
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Issued Date
2009
Resource Type
File Type
application/pdf
ISSN
3051978
Other identifier(s)
2-s2.0-69649104991
Rights Holder(s)
มหาวิทยาลัยศรีนครินทรวิโรฒ
Bibliographic Citation
Biochemical Systematics and Ecology. Vol 37, No.4 (2009), p.452-458
Suggested Citation
Prasankok P., Srikoom W., Panha S. Genetic variation amongst viviparid snails in the genus Mekongia (Prosobranchia: Viviparidae) in Thailand. Biochemical Systematics and Ecology. Vol 37, No.4 (2009), p.452-458. doi:10.1016/j.bse.2009.05.016 Retrieved from: https://hdl.handle.net/20.500.14740/4158
Author(s)
Abstract
Allozyme 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.