Please use this identifier to cite or link to this item: https://ir.swu.ac.th/jspui/handle/123456789/14887
ชื่อเรื่อง: Genetic variation amongst viviparid snails in the genus Mekongia (Prosobranchia: Viviparidae) in Thailand
ผู้แต่ง: Prasankok P.
Srikoom W.
Panha S.
Keywords: allozyme
electrokinesis
genetic variation
geographical distribution
heterozygosity
polymorphism
population bottleneck
snail
species occurrence
subspecies
taxonomy
viviparity
Asia
Eurasia
Southeast Asia
Thailand
Gastropoda
Mekongia
Prosobranchia
Viviparidae
วันที่เผยแพร่: 2009
บทคัดย่อ: 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.
URI: https://ir.swu.ac.th/jspui/handle/123456789/14887
https://www.scopus.com/inward/record.uri?eid=2-s2.0-69649104991&doi=10.1016%2fj.bse.2009.05.016&partnerID=40&md5=ee3be8eb9f79dacae34e9234e419e9f4
ISSN: 3051978
Appears in Collections:Scopus 1983-2021

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