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Green, yellow or black? Genetic differentiation and adaptation signatures in a highly migratory marine turtle

dc.contributor.authorÁlvarez-Varas, Rocío
dc.contributor.authorRojas-Hernández, Noemi
dc.contributor.authorHeidemeyer, Maike
dc.contributor.authorRiginos, Cynthia
dc.contributor.authorBenítez, Hugo A.
dc.contributor.authorAraya-Donoso, Raúl
dc.contributor.authorReséndiz, Eduardo
dc.contributor.authorLara-Uc, Mónica
dc.contributor.authorGodoy, Daniel A.
dc.contributor.authorMuñoz-Pérez, Juan Pablo
dc.contributor.authorAlarcón-Ruales, Daniela E.
dc.contributor.authorAlfaro-Shigueto, Joanna
dc.contributor.authorOrtiz-Alvarez, Clara
dc.contributor.authorMangel, Jeffrey C.
dc.contributor.authorVianna, Juliana A.
dc.contributor.authorVéliz, David
dc.date.accessioned2022-06-01T18:26:54Z
dc.date.available2022-06-01T18:26:54Z
dc.date.issued2021
dc.identifier.urihttp://repositorio.ucm.cl/handle/ucm/3795
dc.description.abstractMarine species may exhibit genetic structure accompanied by phenotypic differentiation related to adaptation despite their high mobility. Two shape-based morphotypes have been identified for the green turtle (Chelonia mydas) in the Pacific Ocean: the south-central/western or yellow turtle and north-central/eastern or black turtle. The genetic differentiation between these morphotypes and the adaptation of the black turtle to environmentally contrasting conditions of the eastern Pacific region has remained a mystery for decades. Here we addressed both questions using a reduced-representation genome approach (Dartseq; 9473 neutral SNPs) and identifying candidate outlier loci (67 outlier SNPs) of biological relevance between shape-based morphotypes from eight Pacific foraging grounds (n = 158). Our results support genetic divergence between morphotypes, probably arising from strong natal homing behaviour. Genes and enriched biological functions linked to thermoregulation, hypoxia, melanism, morphogenesis, osmoregulation, diet and reproduction were found to be outliers for differentiation, providing evidence for adaptation of C. mydas to the eastern Pacific region and suggesting independent evolutionary trajectories of the shape-based morphotypes. Our findings support the evolutionary distinctness of the enigmatic black turtle and contribute to the adaptive research and conservation genomics of a long-lived and highly mobile vertebrate.es_CL
dc.language.isoenes_CL
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 Chile*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/*
dc.sourceProceedings of the Royal Society B: Biological Sciences, 288(1954)es_CL
dc.subjectChelonia mydases_CL
dc.subjectConservation genomicses_CL
dc.subjectGenetic structurees_CL
dc.subjectMelanismes_CL
dc.subjectCandidate geneses_CL
dc.subjectEastern Pacifices_CL
dc.titleGreen, yellow or black? Genetic differentiation and adaptation signatures in a highly migratory marine turtlees_CL
dc.typeArticlees_CL
dc.ucm.indexacionScopuses_CL
dc.ucm.indexacionIsies_CL
dc.ucm.uriroyalsocietypublishing.org/doi/full/10.1098/rspb.2021.0754es_CL
dc.ucm.doidoi.org/10.1098/rspb.2021.0754es_CL


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Atribución-NoComercial-SinDerivadas 3.0 Chile
Excepto si se señala otra cosa, la licencia de la publicación se describe como Atribución-NoComercial-SinDerivadas 3.0 Chile