Data/hora: 08/06/2024 09:42:07

Provedor de dados: 	74	
País: 	Brazil	
Título: 	Testing the Rio Doce as a riverine barrier in shaping the Atlantic rainforest population divergence in the rodent Akodon cursor	
Autores: 	Colombi,Victor Hugo; Lopes,Silvia Ramira; Fagundes,Valéria.	
Data: 	2010-01-01	
Ano: 	2010	
Palavras-chave: 	Akodontini; Atlantic Forest; Cytochrome b; Gene flow; Phylogeography; Rodentia.	
Resumo: 	Akodon cursor occurs in dense rainforest from northern (8º S) to southern (26º S) states along the Atlantic coast of Brazil. Previous karyological and molecular data revealed two major clades, one including northern (8-15º S) and the other southern (19-26º S) populations. The center of geographic distribution (15-20º S), which included the state of Espírito Santo, was identified as a potential vicariance region. Since river barriers are among the most discussed models in the study of Neotropical diversification, we examined whether the Rio Doce (19º S) plays an important role in shaping the population genetic divergence of A. cursor by including samples from Espírito Santo in the analysis. Our results showed that the northern-southern division region in Atlantic forest was no coincidence with the presence of the Rio Doce by refuting the hypothesis that this river is an effective barrier to gene flow between populations. Instead, we found evidence that isolation by geographical distance shaped the phylogeographical structure in the southern lineage. However, there is uncertainty about effectiveness of the processes involved and further studies based on wider sampling are needed.	
Tipo: 	Info:eu-repo/semantics/other	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000400029	
Editor: 	Sociedade Brasileira de Genética	
Relação: 	10.1590/S1415-47572010000400029	
Formato: 	text/html	
Fonte: 	Genetics and Molecular Biology  v.33 n.4 2010	
Fonte: 	info:eu-repo/semantics/openAccess