Integrating environmental niche analysis with phylogeography in Tupinambis lizards from Argentina

Similarity or divergence in the ecological niche of two lineages distributed in simpatry or parapatry may originate dispersal barriers that restrict gene flow, or may favour the occurrence of simpatry zones where hybridization occurs. Tupinambis merianae and Tupinambis rufescens lizards are closely...

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Detalles Bibliográficos
Autores principales:	Cabaña, Imanol, Gardenal, Cristina Noemí, Chiaraviglio, Margarita, Rivera, Paula Cecilia
Formato:	conferenceObject
Lenguaje:	Inglés
Publicado:	2022
Materias:	Filogeografía Estructura genética Nicho ambiental flujo de genes
Acceso en línea:	http://hdl.handle.net/11086/28951
Aporte de:	Repositorio Digital Universitario (UNC) de Universidad Nacional de Córdoba

id	I10-R141-11086-28951
record_format	dspace
institution	Universidad Nacional de Córdoba
institution_str	I-10
repository_str	R-141
collection	Repositorio Digital Universitario (UNC)
language	Inglés
topic	Filogeografía Estructura genética Nicho ambiental flujo de genes
spellingShingle	Filogeografía Estructura genética Nicho ambiental flujo de genes Cabaña, Imanol Gardenal, Cristina Noemí Chiaraviglio, Margarita Rivera, Paula Cecilia Integrating environmental niche analysis with phylogeography in Tupinambis lizards from Argentina
topic_facet	Filogeografía Estructura genética Nicho ambiental flujo de genes
description	Similarity or divergence in the ecological niche of two lineages distributed in simpatry or parapatry may originate dispersal barriers that restrict gene flow, or may favour the occurrence of simpatry zones where hybridization occurs. Tupinambis merianae and Tupinambis rufescens lizards are closely related species, with wide distributions in environmentally different regions although overlapping in a narrow zone. To evaluate the impact of the environment in determining the population genetic structure in these species, we performed a phylogeographic study correlating it with environmental niche variable analysis. Hybrid individuals found clustered with one species in the network obtained with mitochondrial DNA, and with the other species in the network recovered using a nuclear gene. The phylogeographic analysis showed a few widespread haplotypes and several exclusive haplotypes from sympatric or allopatric areas. This result and that from AMOVA indicate that in both species, gene flow between areas is restricted. Environmental niche analysis was performed using bioclimatic variables to calculate Euclidean distance among populations. The genetic differentiation between allopatric and sympatric populations, in both species, was not correlated with geographic or environmental distances. Since the environmental context would not be influencing the genetic population structure of these species and that both species are phenotipically and ecologically similar, we propose that interspecific competition in the overlapping area could be a factor creating a dispersal barrier between sympatric and allopatric populations.
format	conferenceObject
author	Cabaña, Imanol Gardenal, Cristina Noemí Chiaraviglio, Margarita Rivera, Paula Cecilia
author_facet	Cabaña, Imanol Gardenal, Cristina Noemí Chiaraviglio, Margarita Rivera, Paula Cecilia
author_sort	Cabaña, Imanol
title	Integrating environmental niche analysis with phylogeography in Tupinambis lizards from Argentina
title_short	Integrating environmental niche analysis with phylogeography in Tupinambis lizards from Argentina
title_full	Integrating environmental niche analysis with phylogeography in Tupinambis lizards from Argentina
title_fullStr	Integrating environmental niche analysis with phylogeography in Tupinambis lizards from Argentina
title_full_unstemmed	Integrating environmental niche analysis with phylogeography in Tupinambis lizards from Argentina
title_sort	integrating environmental niche analysis with phylogeography in tupinambis lizards from argentina
publishDate	2022
url	http://hdl.handle.net/11086/28951
work_keys_str_mv	AT cabanaimanol integratingenvironmentalnicheanalysiswithphylogeographyintupinambislizardsfromargentina AT gardenalcristinanoemi integratingenvironmentalnicheanalysiswithphylogeographyintupinambislizardsfromargentina AT chiaravigliomargarita integratingenvironmentalnicheanalysiswithphylogeographyintupinambislizardsfromargentina AT riverapaulacecilia integratingenvironmentalnicheanalysiswithphylogeographyintupinambislizardsfromargentina
bdutipo_str	Repositorios
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Integrating environmental niche analysis with phylogeography in Tupinambis lizards from Argentina

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