Consulta: subjectFacets:"Conservation Genetics"
Registros recuperados: 2
Data/hora: 11/06/2024 01:17:59

Contrasted levels of genetic diversity in a benthic Mediterranean octocoral: Consequences of different demographic histories?
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Masmoudi, Moutassem Billah; Chaoui, Lamya; Topu, Nur Eda; Hammami, Pachka; Kara, Mohamed Hichem; Aurelle, Didier.
Understanding the factors explaining the observed patterns of genetic diversity is an important question in evolutionary biology. We provide the first data on the genetic structure of a Mediterranean octocoral, the yellow gorgonian Eunicella cavolini, along with insights into the demographic history of this species. We sampled populations in four areas of the Mediterranean Sea: continental France, Algeria, Turkey, and the Balearic and Corsica islands. Along French coasts, three sites were sampled at two depths (20 and 40 m). We demonstrated a high genetic structure in this species (overall F-ST = 0.13), and most pairwise differentiation tests were significant. We did not detect any difference between depths at the same site. Clustering analyses revealed...
Tipo: Text
Palavras-chave: Octocoral; Conservation Genetics; Demographic history; Mediterranean Sea; Eunicella cavolini; Microsatellite.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00375/48587/48919.pdf

A hybrid swarm of manatees along the Guianas coastline, a peculiar environment under the influence of the Amazon River plume
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: LIMA,CAMILLA S.; MAGALHÃES,RAFAEL F.; MARMONTEL,MIRIAM; MEIRELLES,ANA CAROLINA; CARVALHO,VITOR LUZ; LAVERGNE,ANNE; THOISY,BENOIT DE; SANTOS,FABRÍCIO R.
Abstract: The West Indian (Trichechus manatus) and Amazonian (T. inunguis) manatees have a sympatric occurrence at the mouth of the Amazon River. A result of this interspecific encounter is the occurrence of hybrids, which are frequently found along the coasts of Amapá state in Brazil, French Guiana and Guyana. Here we present new genetic evidence indicating the occurrence of a hybrid swarm along the Guianas Shield coastline, which is an interspecific hybrid zone that also separates T. manatus populations located east (Brazil) and west (Caribbean, Gulf of Mexico, Florida and Antilles). In addition, we suggest that this hybrid population occupies a peculiar mangrove-rich environment under strong influence of the Amazon River plume, which requires an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Conservation Genetics; Hybrid zone; Introgression; Amazon River plume; Guianas coastline; Trichechus.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000600615