Article (Périodiques scientifiques)
Phylogeography of the flathead mullet Mugil cephalus in the north-west Pacific as inferred from the mtDNA control region
Jamandre, Brian Wade; Durand, J.-D.; Tzeng, W. N.
2009In Journal of Fish Biology, 75 (2), p. 393-407
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Mots-clés :
Geological events; MtDNA control region; Mugil cephalus; North-west Pacific; Phylogeography; Population genetics; Pacific Ocean; Smegmamorpha; Animals; DNA, Mitochondrial; Genetic Variation; Genetics, Population; Haplotypes; Molecular Sequence Data; Phylogeny; Population Dynamics
Résumé :
[en] The population genetic structure and historical demography of the flathead mullet Mugil cephalus were investigated using the mtDNA control region (CR) sequences (909-1015 bp) of 126 individuals collected from seven locations in the north-west Pacific between 2005 and 2007. Haplotype diversity (h = 0·9333-1·000) and nucleotide diversity (π = 0·0046-0·1467) varied greatly among the sampling locations. Phylogenetic analysis of the CR sequences indicated that M. cephalus in the north-west Pacific belongs to two highly divergent lineages (lineages 1 and 2), with the inferred population structure being closely associated with the distribution of both lineages. Two populations were identified, one from the East China Sea and the other from the South China Sea. The former samples were obtained from Taiwan and Qingdao of north China and associated with lineage 1 haplotypes. The latter samples were collected from the Philippines, Pearl River of South China and two samples from Japan, all of which were associated with lineage 2. Japanese samples from Okinawa and Yokosuka had different degrees of mixing between lineages 1 and 2. Historical demographic variables in both populations indicated that Pleistocene glaciations had a strong impact on M. cephalus in the north-west Pacific, resulting in a recent demographic decline of the East China Sea population but in demographic equilibrium for the South China Sea population. Japan appears to be a contact zone between lineages 1 and 2, but it may also be indicative of coexistence between resident and migratory populations. Further global studies are required to clarify the taxonomic status of this cosmopolitan species. © 2009 The Fisheries Society of the British Isles.
Disciplines :
Sciences aquatiques & océanologie
Auteur, co-auteur :
Jamandre, Brian Wade ;  Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Biologie du comportement - Ethologie et psychologie animale
Durand, J.-D.;  Institut de Recherche Pour le Développement (IRD), UR5119 ECOLAG, Campus IRD/ISRA de Bel Air, BP 1386, CP 18524 Dakar, Senegal
Tzeng, W. N.;  Institute of Fisheries Science, College of Life Science, National Taiwan University, Sec. 4, Roosevelt Rd, Taipei 10617, Taiwan
Langue du document :
Anglais
Titre :
Phylogeography of the flathead mullet Mugil cephalus in the north-west Pacific as inferred from the mtDNA control region
Date de publication/diffusion :
2009
Titre du périodique :
Journal of Fish Biology
ISSN :
0022-1112
eISSN :
1095-8649
Maison d'édition :
Wiley, Oxford, Royaume-Uni
Volume/Tome :
75
Fascicule/Saison :
2
Pagination :
393-407
Peer reviewed :
Peer reviewed vérifié par ORBi
Disponible sur ORBi :
depuis le 10 février 2015

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