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Authordc.contributor.authorCruz Jofré, Franco 
Authordc.contributor.authorMorales, Pamela 
Authordc.contributor.authorVila Pinto, Irma 
Authordc.contributor.authorEsquer Garrigos, Yareli 
Authordc.contributor.authorHugueny, Bernard 
Authordc.contributor.authorGaubert, Philippe 
Authordc.contributor.authorPoulin, Elie 
Authordc.contributor.authorMéndez, Marco 
Admission datedc.date.accessioned2016-06-29T22:34:55Z
Available datedc.date.available2016-06-29T22:34:55Z
Publication datedc.date.issued2016
Cita de ítemdc.identifier.citationBiological Journal of the Linnean Society, 2016, 117, 747–759en_US
Identifierdc.identifier.otherDOI: 10.1111/bij.12704
Identifierdc.identifier.urihttp://repositorio.uchile.cl/handle/2250/139300
General notedc.descriptionArtículo de publicación ISIen_US
Abstractdc.description.abstractOrestias ascotanensis is a killifish endemic to the Ascotan salt pan in the Chilean Altiplano, where it inhabits 12 springs with different degrees of isolation. This species is a suitable model for studying the effect of serial geographical isolations on the differentiation process among populations. The present study examines the genetic variation and structure of the species using mitochondrial DNA control region sequences and eight microsatellite loci, analyzing populations across its distribution range. The evaluation of genetic variation revealed high levels of diversity within the species. The genetic structure analysis showed the existence of four differentiated groups: two groups were formed by the springs located in the northern and southern extremes of the salt pan and two groups were found in the centre of the salt pan. The latter two groups were formed by several springs, most likely as a consequence of the South American summer monsoon that could connect them and allow gene flow. The patterns of genetic differentiation appear to be determined based on the physical isolation of the populations. This isolation may be the result of a combination of factors, including geographical distance, a historical decrease in water levels and altitude differences in the springs of the salt pan. Therefore, this system is a rare example in which hydrological factors can explain genetic differentiation on a very small scale.en_US
Patrocinadordc.description.sponsorshipFONDECYT, CONICYT-PCHA/doctorado Nacional, Programa de Cooperacion Internacional CONICYT, French National Research Agency.en_US
Lenguagedc.language.isoenen_US
Publisherdc.publisherWILEY-BLACKWELLen_US
Type of licensedc.rightsAtribución-NoComercial-SinDerivadas 3.0 Chile*
Link to Licensedc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/*
Keywordsdc.subjectStructureen_US
Keywordsdc.subjectPleistoceneen_US
Keywordsdc.subjectmtDNA control regionen_US
Keywordsdc.subjectMicrosatellitesen_US
Keywordsdc.subjectHydrological variationen_US
Keywordsdc.subjectGeographical distanceen_US
Keywordsdc.subjectAltiplanoen_US
Títulodc.titleGeographical isolation and genetic differentiation: the case of Orestias ascotanensis (Teleostei: Cyprinodontidae), an Andean killifish inhabiting a highland salt panen_US
Document typedc.typeArtículo de revistaen_US


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Atribución-NoComercial-SinDerivadas 3.0 Chile
Except where otherwise noted, this item's license is described as Atribución-NoComercial-SinDerivadas 3.0 Chile