Multiple contact zones and karyotypic evolution in a neotropical frog species complex

Abstract Previous studies of DNA sequence and karyotypic data have revealed high genetic diversity in the Physalaemus cuvieri – Physalaemus ephippifer species complex—a group of small leptodactylid frogs in South America. To date, seven major genetic lineages have been recognized in this group, with...

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Main Authors: Lucas H. B. Souza, Todd W. Pierson, Renata O. Tenório, Juan M. Ferro, Kaleb P. Gatto, Bruno C. Silva, Gilda V. de Andrade, Pablo Suárez, Célio F. B. Haddad, Luciana B. Lourenço
Format: Article
Language:English
Published: Nature Portfolio 2024-01-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-024-51421-z
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author Lucas H. B. Souza
Todd W. Pierson
Renata O. Tenório
Juan M. Ferro
Kaleb P. Gatto
Bruno C. Silva
Gilda V. de Andrade
Pablo Suárez
Célio F. B. Haddad
Luciana B. Lourenço
author_facet Lucas H. B. Souza
Todd W. Pierson
Renata O. Tenório
Juan M. Ferro
Kaleb P. Gatto
Bruno C. Silva
Gilda V. de Andrade
Pablo Suárez
Célio F. B. Haddad
Luciana B. Lourenço
author_sort Lucas H. B. Souza
collection DOAJ
description Abstract Previous studies of DNA sequence and karyotypic data have revealed high genetic diversity in the Physalaemus cuvieri – Physalaemus ephippifer species complex—a group of small leptodactylid frogs in South America. To date, seven major genetic lineages have been recognized in this group, with species delimitation tests supporting four to seven of them as valid species. Among these, only P. ephippifer shows heteromorphic sex chromosomes, but the implications of cytogenetic divergence for the evolution of this group are unknown. We analyzed karyotypic, mitochondrial DNA, and 3RAD genomic data to characterize a putative contact zone between P. ephippifer and P. cuvieri Lineage 1, finding evidence for admixture and karyotypic evolution. We also describe preliminary evidence for admixture between two other members of this species complex—Lineage 1 and Lineage 3 of P. cuvieri. Our study sheds new light on evolutionary relationships in the P. cuvieri – P. ephippifer species complex, suggesting an important role of karyotypic divergence in its evolutionary history and underscoring the importance of hybridization as a mechanism of sex chromosome evolution in amphibians.
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spelling doaj.art-5200663a9d264fc6b0d782a8556f74882024-01-14T12:22:48ZengNature PortfolioScientific Reports2045-23222024-01-0114112110.1038/s41598-024-51421-zMultiple contact zones and karyotypic evolution in a neotropical frog species complexLucas H. B. Souza0Todd W. Pierson1Renata O. Tenório2Juan M. Ferro3Kaleb P. Gatto4Bruno C. Silva5Gilda V. de Andrade6Pablo Suárez7Célio F. B. Haddad8Luciana B. Lourenço9Laboratório de Estudos Cromossômicos (LabEsC), Departamento de Biologia Estrutural e Funcional, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP)Department of Ecology, Evolution, and Organismal Biology, Kennesaw State UniversityLaboratório de Estudos Cromossômicos (LabEsC), Departamento de Biologia Estrutural e Funcional, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP)Laboratorio de Genética Evolutiva “Dr. Claudio J. Bidau”, Instituto de Biología Subtropical (CONICET-UNaM), Facultad de Ciencias Exactas, Químicas y Naturales, Universidad Nacional de MisionesLaboratório de Estudos Cromossômicos (LabEsC), Departamento de Biologia Estrutural e Funcional, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP)Laboratório de Estudos Cromossômicos (LabEsC), Departamento de Biologia Estrutural e Funcional, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP)Departamento de Biologia, Centro de Ciências Biológicas e da Saúde, Universidade Federal do Maranhão (UFMA)Instituto de Biología Subtropical (CONICET-UNaM)Departamento de Biodiversidade and Centro de Aquicultura (CAUNESP), Instituto de Biociências, Universidade Estadual PaulistaLaboratório de Estudos Cromossômicos (LabEsC), Departamento de Biologia Estrutural e Funcional, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP)Abstract Previous studies of DNA sequence and karyotypic data have revealed high genetic diversity in the Physalaemus cuvieri – Physalaemus ephippifer species complex—a group of small leptodactylid frogs in South America. To date, seven major genetic lineages have been recognized in this group, with species delimitation tests supporting four to seven of them as valid species. Among these, only P. ephippifer shows heteromorphic sex chromosomes, but the implications of cytogenetic divergence for the evolution of this group are unknown. We analyzed karyotypic, mitochondrial DNA, and 3RAD genomic data to characterize a putative contact zone between P. ephippifer and P. cuvieri Lineage 1, finding evidence for admixture and karyotypic evolution. We also describe preliminary evidence for admixture between two other members of this species complex—Lineage 1 and Lineage 3 of P. cuvieri. Our study sheds new light on evolutionary relationships in the P. cuvieri – P. ephippifer species complex, suggesting an important role of karyotypic divergence in its evolutionary history and underscoring the importance of hybridization as a mechanism of sex chromosome evolution in amphibians.https://doi.org/10.1038/s41598-024-51421-z
spellingShingle Lucas H. B. Souza
Todd W. Pierson
Renata O. Tenório
Juan M. Ferro
Kaleb P. Gatto
Bruno C. Silva
Gilda V. de Andrade
Pablo Suárez
Célio F. B. Haddad
Luciana B. Lourenço
Multiple contact zones and karyotypic evolution in a neotropical frog species complex
Scientific Reports
title Multiple contact zones and karyotypic evolution in a neotropical frog species complex
title_full Multiple contact zones and karyotypic evolution in a neotropical frog species complex
title_fullStr Multiple contact zones and karyotypic evolution in a neotropical frog species complex
title_full_unstemmed Multiple contact zones and karyotypic evolution in a neotropical frog species complex
title_short Multiple contact zones and karyotypic evolution in a neotropical frog species complex
title_sort multiple contact zones and karyotypic evolution in a neotropical frog species complex
url https://doi.org/10.1038/s41598-024-51421-z
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