Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Impact of glaciations and geographic distance on the genetic structure of a tropical estuarine fish, Ethmalosa fimbriata (Clupeidae, S. Bowdich, 1825)
Molecular Phylogenetics and Evolution, Volume 36, No. 2, Year 2005
Notification
URL copied to clipboard!
Description
We assayed the mtDNA phylogeography [196 base pairs (bp) of the cytochrome b] and population structure (n = 680) in the estuarine fish, Ethmalosa fimbriata, from its whole distribution range: 14 locations along the West African coasts were sampled. Specifically, we considered Pleistocene glaciations as well as the hydrodynamics and climatic conditions of the estuarine environments in order to identify the main evolutionary forces that have shaped the genetic variation in mtDNA, i.e., the contemporary or the historical gene flow. There was an overall significant population differentiation among estuaries (Fst = 0.10). Although E. fimbriata showed a significant pattern of isolation by distance over the entire sampled range, this genetic structure did not mirror contemporary gene flow but the colonization sequence of the present distribution range. Finally, the mtDNA genetic structure traced the past historic dispersion that occurred at the end of the Pleistocene glaciations. The central part of the present distribution area was probably the species origin and due to difference in the historic migration rate northward and southward, isolation of a South group occurred first, 110,000-190,000 years ago, before the divergence of the North group 47,000-82,000 years ago. © 2005 Elsevier Inc. All rights reserved.
Authors & Co-Authors
Durand, Jean Dominique
Senegal, Dakar
Institut de Recherche Pour le Développement Dakar
France, Sete
Lab. Genome
Tine, Mbaye
Senegal, Dakar
Institut de Recherche Pour le Développement Dakar
Senegal, Dakar
Université Cheikh Anta Diop de Dakar
Panfili, Jacques
Senegal, Dakar
Institut de Recherche Pour le Développement Dakar
Thiaw, Omar Thiom
Senegal, Dakar
Université Cheikh Anta Diop de Dakar
Laë, Raymond
France, Plouzane
Ird Centre de Bretagne
Statistics
Citations: 41
Authors: 5
Affiliations: 4
Identifiers
Doi:
10.1016/j.ympev.2005.01.019
ISSN:
10557903
Research Areas
Environmental
Genetics And Genomics
Study Design
Cross Sectional Study