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GENETIC DIVERSITY AND INSULAR COLONIZATION OF LIOLAEMUS PICTUS (SQUAMATA, LIOLAEMINAE) IN NORTH-WESTERN PATAGONIA

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dc.creatorMARCELA ALEJANDRA VIDAL MALDONADO
dc.date2012
dc.date.accessioned2025-01-10T14:40:41Z
dc.date.available2025-01-10T14:40:41Z
dc.date.issued2012
dc.description.abstractTHE CHILOTAN ARCHIPELAGO AND SURROUNDING AREAS OF NORTH-WESTERN PATAGONIA (41°?43°S, 72°?74°W) OFFER A UNIQUE OPPORTUNITY TO STUDY THE INTERPLAY BETWEEN THE RECENT GENETIC AND PALEOENVIRONMENTAL EVOLUTION ON TEMPERATE RAINFOREST ENVIRONMENTS. PREVIOUS STUDIES IN THIS REGION HAVE POSTULATED THAT LAND BIOTA PERSISTED WEST OF THE PATAGONIAN ICE SHEET, IN ICE-FREE LOW-ELEVATION REGIONS OF THE MAINLAND, AND THE NORTH-WESTERN PORTION OF ISLA GRANDE DE CHILOÉ DURING QUATERNARY ICE AGES. IN THIS STUDY, WE ANALYSED THE PHYLOGEOGRAPHICAL STRUCTURE (CYTOCHROME B) OF THE IGUANID LIZARD LIOLAEMUS PICTUS TO ESTIMATE THEIR GENETIC STRUCTURE IN RESPONSE TO GLACIAL?INTERGLACIAL CYCLES AND COLONIZATION ROUTES. WE FOUND THAT POPULATIONS FROM THE MAINLAND AND ISLA GRANDE DE CHILOÉ DO NOT SHARE HAPLOTYPES AND, THUS, ARE DIVERGENT HAPLOGROUPS. THIS DIVERGENCE MIGHT REFLECT AN ANCIENT ISOLATION, MUCH OLDER THAN THE LAST GLACIATION. MOREOVER, THE EXISTENCE OF FOUR DIVERGENT HAPLOGROUPS AMONG L. PICTUS POPULATIONS IN THE MAINLAND SUGGESTS THE PERSISTENCE OF MULTIPLE ISOLATED POPULATIONS DURING THE LAST GLACIATION. OUR RESULTS ALSO INDICATE THAT THE COLONIZATION OF SMALL ISLANDS OCCURRED FROM SEVERAL SOURCE SITES, LOCATED BOTH IN THE MAINLAND AND IN ISLA GRANDE DE CHILOÉ, AFTER THE LAST GLACIAL MAXIMUM.
dc.formatapplication/pdf
dc.identifier.doi10.1111/j.1442-9993.2011.02241.x
dc.identifier.issn1442-9993
dc.identifier.issn1442-9985
dc.identifier.urihttps://repositorio.ubiobio.cl/handle/123456789/8482
dc.languagespa
dc.publisherAUSTRAL ECOLOGY
dc.relation.uri10.1111/j.1442-9993.2011.02241.x
dc.rightsPUBLICADA
dc.titleGENETIC DIVERSITY AND INSULAR COLONIZATION OF LIOLAEMUS PICTUS (SQUAMATA, LIOLAEMINAE) IN NORTH-WESTERN PATAGONIA
dc.typeARTÍCULO
dspace.entity.typePublication
ubb.EstadoPUBLICADA
ubb.Otra ReparticionDEPARTAMENTO DE CIENCIAS BASICAS
ubb.SedeCHILLÁN
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