The roles of barriers, refugia, and chromosomal clines underlying diversification in Atlantic Forest social wasps

Abstract Phylogeographic studies have sought to explain the genetic imprints of historical climatic changes and geographic barriers within the Brazilian Atlantic Forest (AF) biota, and consequently two processes of diversification (refugia and barriers) have been proposed. Additionally, there is evi...

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Autores principales:	Rodolpho S. T. Menezes, Seán G. Brady, Antônio F. Carvalho, Marco A. Del Lama, Marco A. Costa
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f69c1802a1d946b581e9ae02ce7ebc9a
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spelling	oai:doaj.org-article:f69c1802a1d946b581e9ae02ce7ebc9a2021-12-02T11:52:20ZThe roles of barriers, refugia, and chromosomal clines underlying diversification in Atlantic Forest social wasps10.1038/s41598-017-07776-72045-2322https://doaj.org/article/f69c1802a1d946b581e9ae02ce7ebc9a2017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07776-7https://doaj.org/toc/2045-2322Abstract Phylogeographic studies have sought to explain the genetic imprints of historical climatic changes and geographic barriers within the Brazilian Atlantic Forest (AF) biota, and consequently two processes of diversification (refugia and barriers) have been proposed. Additionally, there is evidence that eustatic changes influenced the biogeographic history of the AF. Here we evaluate these contrasting diversification processes using two AF social wasp species – the mid-montane Synoeca cyanea and the lowland Synoeca aff. septentrionalis. We analyzed several sources of data including multilocus DNA sequence, climatic niche models and chromosomal features. We find support for idiosyncratic phylogeographic patterns between these wasps, involving different levels of population structure and genetic diversity, contrary suitable climatic conditions during the last glaciation, and contrasting historical movements along the AF. Our data indicate that neotectonics and refugia played distinct roles in shaping the genetic structure of these wasps. However, we argue that eustatic changes influenced the demographic expansion but not population structure in AF biota. Notably, these wasps exhibited chromosomal clines, involving chromosome number and decreasing of GC content, latitudinally oriented along the AF. Together, these results reinforce the need to consider individual organismal histories and indicate that barriers and refugia are significant factors in understanding AF evolution.Rodolpho S. T. MenezesSeán G. BradyAntônio F. CarvalhoMarco A. Del LamaMarco A. CostaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-16 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Rodolpho S. T. Menezes Seán G. Brady Antônio F. Carvalho Marco A. Del Lama Marco A. Costa The roles of barriers, refugia, and chromosomal clines underlying diversification in Atlantic Forest social wasps
description	Abstract Phylogeographic studies have sought to explain the genetic imprints of historical climatic changes and geographic barriers within the Brazilian Atlantic Forest (AF) biota, and consequently two processes of diversification (refugia and barriers) have been proposed. Additionally, there is evidence that eustatic changes influenced the biogeographic history of the AF. Here we evaluate these contrasting diversification processes using two AF social wasp species – the mid-montane Synoeca cyanea and the lowland Synoeca aff. septentrionalis. We analyzed several sources of data including multilocus DNA sequence, climatic niche models and chromosomal features. We find support for idiosyncratic phylogeographic patterns between these wasps, involving different levels of population structure and genetic diversity, contrary suitable climatic conditions during the last glaciation, and contrasting historical movements along the AF. Our data indicate that neotectonics and refugia played distinct roles in shaping the genetic structure of these wasps. However, we argue that eustatic changes influenced the demographic expansion but not population structure in AF biota. Notably, these wasps exhibited chromosomal clines, involving chromosome number and decreasing of GC content, latitudinally oriented along the AF. Together, these results reinforce the need to consider individual organismal histories and indicate that barriers and refugia are significant factors in understanding AF evolution.
format	article
author	Rodolpho S. T. Menezes Seán G. Brady Antônio F. Carvalho Marco A. Del Lama Marco A. Costa
author_facet	Rodolpho S. T. Menezes Seán G. Brady Antônio F. Carvalho Marco A. Del Lama Marco A. Costa
author_sort	Rodolpho S. T. Menezes
title	The roles of barriers, refugia, and chromosomal clines underlying diversification in Atlantic Forest social wasps
title_short	The roles of barriers, refugia, and chromosomal clines underlying diversification in Atlantic Forest social wasps
title_full	The roles of barriers, refugia, and chromosomal clines underlying diversification in Atlantic Forest social wasps
title_fullStr	The roles of barriers, refugia, and chromosomal clines underlying diversification in Atlantic Forest social wasps
title_full_unstemmed	The roles of barriers, refugia, and chromosomal clines underlying diversification in Atlantic Forest social wasps
title_sort	roles of barriers, refugia, and chromosomal clines underlying diversification in atlantic forest social wasps
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/f69c1802a1d946b581e9ae02ce7ebc9a
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The roles of barriers, refugia, and chromosomal clines underlying diversification in Atlantic Forest social wasps

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