Use este identificador para citar ou linkar para este item: http://repositorio.bc.ufg.br/handle/ri/12067
Tipo do documento: Artigo
Título: Ancestral reconstruction of reproductive traits shows no tendency toward terrestriality in leptodactyline frogs
Autor: Pereira, Elisa Barreto
Collevatti, Rosane Garcia
Kokubum, Marcelo Nogueira de Carvalho
Miranda, Núbia Esther de Oliveira
Maciel, Natan Medeiros
Abstract: Background: Traditionally, the evolution of terrestrial reproduction in anurans from ancestors that bred in water has been accepted in the literature. Still, the existence of intermediate stages of water dependency, such as species that lay eggs close to water (e.g., in burrows) instead of in bodies of water, supports the hypothesis of an ordered and gradual evolution in the direction of a more terrestrial form of reproduction. However, this conventional view has recently been challenged for some anurans groups. Leptodactylinae frogs are a remarkable example of anurans with an outstanding diversity in terms of reproductive features, with distinct water dependency among lineages. Here, we tested the hypothesis of a gradual and ordered tendency towards terrestriality in Leptodactylinae, including the existence of obligatory intermediate stages, such as semi-terrestrial reproductive strategies. We also addressed the association between reproductive modes and the morphological and ecological features. Results: An ancestral reconstruction analysis indicated that even though shifts from aquatic to terrestrial breeding occurred throughout the history of Leptodactylus and Adenomera, shifts from terrestrial to aquatic reproduction happened at almost the same frequency. Our results also demonstrated that reproductive modes for semi-terrestrial tadpoles were not necessarily an intermediate form between aquatic and terrestrial breeds. Correlations among reproductive modes and other life-history traits suggested that tadpole environment, clutch size, nuptial spines, and egg pigmentation were co-evolving and driven by water dependency. Conclusions: Our results found no evidence of evolutionary tendencies toward terrestriality in Leptodactylinae. We found reversals from terrestrial to aquatic tadpole development and no evidence of obligatory intermediate stages, such as semi-terrestrial reproductive strategies. We also found correlations between reproductive modes and other life-history traits driven by water dependence. Aquatic reproductive modes are associated with higher clutch sizes, lentic waters, and the presence of nuptial spines and egg pigmentation.
Palavras-chave: Adenomera
Stochastic inference
Leptodactylus
Reproductive mode
Trait correlation
País: Outros
Instituição: BioMed Central
Unidade acadêmica: Instituto de Ciências Biológicas - ICB (RG)
Citação: PEREIRA, Elisa Barreto; COLLEVATTI, Rosane Garcia; KOKUBUM, Marcelo Nogueira de Carvalho; MIRANDA, Núbia Esther de Oliveira; MACIEL, Natan Medeiros. Ancestral reconstruction of reproductive traits shows no tendency toward terrestriality in leptodactyline frogs. BMC Evolutionary Biology, Londres, v. 15, p. 91, May 2015.
Tipo de acesso: Acesso Aberto
Identificador do documento: 10.1186/s12862-015-0365-6
Identificador do documento: 10.1186/s12862-015-0365-6
URI: http://repositorio.bc.ufg.br/handle/ri/12067
Data de publicação: Mai-2015
Aparece nas coleções:ICB - Artigos publicados em periódicos

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