Genetic variation within and between four chromosomal races of <i>Liolaemus monticola</i> in Chile

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dc.contributor.authorVasquez, Mauricio
dc.contributor.authorTorres-Perez, Fernando
dc.contributor.authorLamborot, Madeleine
dc.date.accessioned2025-01-21T01:05:28Z
dc.date.available2025-01-21T01:05:28Z
dc.date.issued2007
dc.description.abstractAllozyme variability was assessed within and between 18 samples of four chromosomal races of the Liolaemus monticola complex: "Southern, 2n=34", "Northern, 2n=38-40", "Multiple Fission, 2n=42-44" and "Northern modified 1, 2n=38-40". This is an endemic montane Chilean lizard characterized by extensive chromosomal polytypy. The population genetic structure was studied by means of allozyme electrophoresis of 20 presumptive loci. Population heterogeneity analysis carried out by the estimation of Weir and Cockerham's F-statistic (theta), demonstrated substantial genetic differentiation among populations. The u-statistic, genetic distance data and multivariate analyses show that genetic variation is distributed into geographically coherent population groups in accordance with three of the four chromosome races. The greatest differentiation occurs between all populations of the "Southern, 2n=34" race and a second group that includes all populations from the "Northern, 2n=38-40" plus "Northern mod 1, 2n=38-40" races, separated from the "Multiple Fissions, 2n=42-44" race. As riverine barriers also separate these chromosomal races, we do not attribute the observed differentiation to isolation-by-distance or the chromosome characterization for each race. Possible routes of migration and colonization are proposed.
dc.fuente.origenWOS
dc.identifier.issn0268-0130
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95929
dc.identifier.wosidWOS:000256389400002
dc.issue.numero3
dc.language.isoen
dc.pagina.final160
dc.pagina.inicio149
dc.revistaHerpetological journal
dc.rightsacceso restringido
dc.subjectallozyme variability
dc.subjectchromosomal races
dc.subjectcentral Chile
dc.subjectLiolaemidae
dc.subjectSquamata
dc.subject.ods15 Life on Land
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.titleGenetic variation within and between four chromosomal races of <i>Liolaemus monticola</i> in Chile
dc.typeartículo
dc.volumen17
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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