Multilocus data of a manakin species reveal cryptic diversification moulded by vicariance

We used molecular tools and a multilocus approach to investigate the phylogeography of Lepidothrix coronata across most of its ample range. We sequenced six DNA fragments to produce phylogenies, molecular dating estimates, analyses of the dynamics of the demographic history of the species and a biog...

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Bibliographic Details
Published in:Zoologica scripta 2020-03, Vol.49 (2), p.129-144
Main Authors: Reis, Camila Alves, Dias, Cleyssian, Araripe, Juliana, Aleixo, Alexandre, Anciães, Marina, Sampaio, Iracilda, Schneider, Horacio, Rêgo, Péricles Sena
Format: Article
Language:English
Subjects:
Amazonia
Analysis
Biogeography
cryptic diversification
Cryptic species
Distribution
Divergence
Diversification
DNA
Geographical distribution
Introgression
Lepidothrix
Mitochondrial DNA
multilocus approach
Neotropical
Nucleotide sequence
Phylogeny
phylogeography
Rivers
Species
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Summary:We used molecular tools and a multilocus approach to investigate the phylogeography of Lepidothrix coronata across most of its ample range. We sequenced six DNA fragments to produce phylogenies, molecular dating estimates, analyses of the dynamics of the demographic history of the species and a biogeographic analysis to estimate the events and changes in the ancestral distribution of the species. The results indicated the presence of four well‐established lineages, with high levels of divergence. These lineages are delineated by well‐defined geographic barriers, with one lineage, restricted to the west of the Andes, being the first to diverge from the complex. The other three lineages are exclusive to the Amazonian distribution of the species, with two being found north of the Amazon River, and the third, south of the Amazon. Some of the relationships found between these lineages were distinct from those described in previous studies. Important disagreements were found between the mtDNA phylogeny and that of the multilocus analysis, in relation to the lineages located to the west of the Andes. We propose that past introgression events may have influenced shifts in the relationships between lineages, despite the fact that the groups were well defined in both the phylogenies. The biogeographic analysis indicates that the lineages arose through successive vicariance events, which had a primary role in the diversification of the group. Two or three genetically structured subclades were also found within each Amazonian lineage, although these subclades are not isolated by an obvious geographic barrier.
ISSN:0300-3256
1463-6409
DOI:10.1111/zsc.12395