Please use this identifier to cite or link to this item:
Title: Subtle environmental variation affects phenotypic differentiation of shallow divergent treefrog lineages in Amazonia
Authors: Werneck, Fernanda de Pinho
Rodrigues, Miguel Trefaut
Leite, Rafael N.
Fouquet, Antoine
Réjaud, Alexandre
Castro, Kathleen M.S.A.
Moraes, Leandro J.C.L.
Martinez, Pablo A.
Rainha, Raíssa N.
Keywords: Comparative phylogenetic methods
Recent morphological evolution
Issue Date: 2021
metadata.dc.publisher.journal: Biological Journal of the Linnean Society
metadata.dc.relation.ispartof: Volume 134, Edição 1, Págs 177 - 197
Abstract: Amazonia harbours a vast biotic and ecological diversity, enabling investigation of the effects of microevolutionary processes and environmental variation on species diversification. Integrative approaches combining phenotypic and genetic variation can improve our knowledge on diversification processes in megadiverse regions. Here, we investigate the influence of environmental and geographic variation on the genetic and morphological differentiation in the Amazonian Boana calcarata-fasciata (Anura: Hylidae) species complex. We analysed the variation of one mtDNA gene from individuals of different forest environments, and assessed their phylogenetic relationships and species limits to define the lineages to perform a phenotypic-environmental approach. We collected morphological data (head shape and size) using 3D models and investigated the phylogenetic signal, evolutionary model and influence of environmental variables on morphology. We verified associations between environmental and geographical distances with morphological and genetic variation using distance-based redundancy analyses and Mantel tests. We found an even higher cryptic diversity than already recognized within the species complex. Body size and head shape varied among specimens, but did not present phylogenetic signal, diverging under a selective evolutionary model. Our results show that diverse factors have influenced morphological and genetic variation, but environmental conditions such as vegetation cover, precipitation and climate change velocity influenced morphological diversification. Possible population-level mechanisms such as parallel morphological evolution or plastic responses to similar environments could account for such patterns in these typical Amazonian treefrogs. © 2021 The Linnean Society of London, Biological Journal of the Linnean Society.
metadata.dc.identifier.doi: 10.1093/biolinnean/blab056
Appears in Collections:Artigos

Files in This Item:
File Description SizeFormat 
Repositório do INPA.pdf182,95 kBAdobe PDFView/Open

This item is licensed under a Creative Commons License Creative Commons