Rodrigues, Rosa, Santos, Simoni, Haimovici, Manuel, Saint-Paul, Ulrich, Sampaio, Iracilda and Schneider, Horacio (2014) Mitochondrial DNA reveals population structuring in Macrodon atricauda (Perciformes: Sciaenidae): a study covering the whole geographic distribution of the species in the southwestern Atlantic. Mitochondrial DNA, 25 (2). pp. 150-156. DOI

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We investigated the genetic structure and diversity of M. atricauda, based on 266 specimens collected off the coast of southern Brazil and Argentina at seven locations, covering the whole geographic distribution of this species. A DNA sequence alignment of 904 base pairs of the mitochondrial Control Region revealed a total of 85 haplotypes. FST analyses suggest that M. atricauda does not comprise a single demographic stock. Two different genetic units are identified, which possibly are related to ecological adaptations of the species within its range. Genetic diversity, Bayesian analysis of population structure, and significant negative results for the D and FS tests indicate that M. atricauda populations have undergone recent expansion. The spatial distribution of genetic variation seems to be related to historical colonization from south to north, followed by expansion.

Document Type: Article
Programme Area: UNSPECIFIED
Research affiliation: Ecology > Mangrove Ecology
Affiliations > Not ZMT
Refereed: Yes
Open Access Journal?: No
DOI etc.:
ISSN: 1940-1736
Date Deposited: 09 Aug 2019 16:12
Last Modified: 01 Oct 2020 12:59

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