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Auteur Borsa, P.; Durand, J.D.; Shen, K.N.; Arlyza, I.S.; Solihin, D.D.; Berrebi, P.
Titre Himantura tutul sp nov (Myliobatoidei: Dasyatidae), a new ocellated whipray from the tropical Indo-West Pacific, described from its cytochrome-oxidase I gene sequence Type Article scientifique
Année 2013 Publication Revue Abrégée Comptes Rendus Biologies
Volume 336 Numéro 2 Pages 82-92
Mots-Clés Himantura leoparda, New species, Molecular taxonomy, COI, Cytochrome b; myliobatiformes dasyatidae, conservation, fisheries, indonesia, sharks,; rays, elasmobranchs, management, taxonomy, barcode
Résumé It has been previously established that the Leopard Whipray, Himantura leoparda, consists of two genetically isolated, cryptic species, provisionally designated as 'Cluster 1' and 'Cluster 4' (Arlyza et al., Mol. Phylogenet. Evol. 65 (2013) [11). Here, we show that the two cryptic species differ by the spotting patterns on the dorsal surface of adults: Cluster-4 individuals tend to have larger-ocellated spots, which also more often have a continuous contour than Cluster-1 individuals. We show that H. leopard a's holotype has the typical larger-ocellated spot pattern, designating Cluster 4 as the actual H. leoparda. The other species (Cluster 1) is described as Himantura tutul sp. nov. on the basis of the nucleotide sequence of a 655-base pair fragment of its cytochrome-oxidase I gene (GENBANK accession No. JX263335). Nucleotide synapomorphies at this locus clearly distinguish H. tutul sp. nov. from all three other valid species in the H. uarnak species complex, namely H. leoparda, H. uarnak, and H. undulata. H. tutul sp. nov. has a wide distribution in the Indo-West Pacific, from the shores of eastern Africa to the Indo-Malay archipelago. H. leoparda under its new definition has a similarly wide Indo-West Pacific distribution. (C) 2013 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
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Volume de collection Numéro de collection Edition
ISSN 1631-0691 ISBN Médium
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Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 624
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Auteur Durand, J.D.; Shen, K.N.; Chen, W.J.; Jamandre, B.W.; Blel, H.; Diop, K.; Nirchio, M.; de Leon, F.J.G.; Whitfield, A.K.; Chang, C.W.; Borsa, P.
Titre Systematics of the grey mullets (Teleostei: Mugiliformes: Mugilidae): Molecular phylogenetic evidence challenges two centuries of morphology-based taxonomy Type Article scientifique
Année 2012 Publication Revue Abrégée Mol. Phylogenet. Evol.
Volume 64 Numéro 1 Pages 73-92
Mots-Clés 16S rRNA; Cryptic species; Cytochrome b; Cytochrome oxidase I; Phylogeny; cephalus; divergence; fishes; gray mullets; mitochondrial-dna sequence; mtdna segments; pcr-rflp-analysis; ribosomal-rna genes; species mugilidae; striped mullet
Résumé The family Mugilidae comprises mainly coastal marine species that a:e widely distributed in all tropical, subtropical and temperate seas. Mugilid species are generally considered to be ecologically important and they are a major food resource for human populations in certain parts of the world. The taxonomy and systematics of the Mugilidae are still much debated and based primarily on morphological characters. In this study, we provide the first comprehensive molecular systematic account of the Mugilidae using phylogenetic analyses of nucleotide sequence variation at three mitochondrial loci (16S rRNA, cytochrome oxidase 1, and cytochrome b) for 257 individuals from 55 currently recognized species. The study covers all 20 mugilid genera currently recognized as being valid. The family comprises seven major lineages that radiated early on from the ancestor to all current forms. All genera that were represented by two species or more, except Cestraeus, turned out to be paraphyletic or polyphyletic. Thus, the present phylogenetic results generally disagree with the current taxonomy at the genus level and imply that the anatomical characters used for the systematics of the Mugilidae may be poorly informative phylogenetically. The present results should provide a sound basis for a taxonomic revision of the mugilid genera. A proportion of the species with large distribution ranges (including Moolgarda seheli, Mugil cephalus and M. curema) appear to consist of cryptic species, thus warranting further taxonomic and genetic work at the infra-generic level. (c) 2012 Elsevier Inc. All rights reserved.
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Éditeur de collection Titre de collection Titre de collection Abrégé
Volume de collection Numéro de collection Edition
ISSN 1055-7903 ISBN Médium
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Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 880
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Auteur MUTHS, D.; TESSIER, E.; BOURJEA, J.
Titre Genetic structure of the reef grouper Epinephelus merra in the West Indian Ocean appears congruent with biogeographic and oceanographic boundaries Type Article scientifique
Année 2015 Publication Revue Abrégée Marine Ecology-an Evolutionary Perspective
Volume 36 Numéro 3 Pages 447-461
Mots-Clés Cytochrome b; marine connectivity; microsatellite; reef fish; West Indian Ocean
Résumé The reef fauna connectivity of the West Indian Ocean (WIO) is one of the least studied globally. Here we use genetic analyses of the grouper Epinephelus merra (Bloch 1793) to determine patterns of connectivity and to identify barriers to dispersal in this WIO marine area. Phylogeographic and population-level analyses were conducted on cytochrome b sequences and microsatellites (13 loci) from 557 individuals sampled in 15 localities distributed across the West Indian Ocean. Additional samples from the Pacific Ocean were used to benchmark the WIO population structure. The high level of divergence revealed between Indian and Pacific localities (of about 4.5% in sequences) might be the signature of the major tectonic and climatic changes operating at the Plio-Pleistocene transition, congruently with numerous examples of Indo-Pacific speciation. In comparison, the E. merra sequences from the Indian Ocean constitute a monophyletic clade with a low average genetic distance (d < 0.5%). However both genetic markers indicated some structure within this ocean. The main structure revealed was the isolation of the Maldives from the WIO localities (a different group signature identified by clustering analysis, great values of differentiation). Both marker types reveal further significant structure within the WIO, mainly the isolation of the Mascarene Islands (significant AMOVA and isolation-by-distance patterns) and some patchy structure between the northernmost localities and within the Mozambique Channel. The WIO genetic structure of E. merra appeared congruent with main biogeographic boundaries and oceanographic currents.
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Volume de collection Numéro de collection Edition
ISSN 0173-9565 ISBN Médium
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Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 1436
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Auteur Tran, T.T.V.; Phan, L.K.; Durand, J.-D.
Titre Diversity and distribution of cryptic species within the Mugil cephalus species complex in Vietnam Type Article scientifique
Année 2017 Publication Revue Abrégée Mitochondrial DNA Part A
Volume 28 Numéro 4-5 Pages 493-501
Mots-Clés Cryptic species; cytochrome b; cytochrome oxidase I; divergence; genetic diversity; marginal seas; mitochondrial phylogeny; northwestern pacific; phylogeography; pleistocene isolation; population-growth; striped mullet; teleostei mugilidae
Résumé Mugil cephalus sensu lato is a globally distributed complex of cryptic species whose distribution range and evolutionary history remains largely unknown. In the North West (NW) Pacific three species have been identified genetically among fish described morphologically as M. cephalus. Their distribution ranges are largely parapatric and has been proposed to mirror different thermal preferences. To date, few samples have been analyzed from South China Sea, which limits inferences on the evolutionary history of the species complex. We sampled fish identified morphologically as M. cephalus along Vietnamese shores and characterized them using the sequence polymorphism of two mitochondrial genes, the cytochrome oxidase I and cytochrome b. This demonstrated that all three species described in the NW Pacific are present in both northern and southern Vietnamese waters. Although the difference in species abundance reflects those observed in the NW Pacific, no phylogeographic pattern was revealed. In addition, no population structure was observed whatever the species or the distribution range considered, which indicates a significant level of gene flow that maintains genetic homogeneity of the three species. It is also conceivable that each species experienced a recent population expansion from a single ancestral population. Finally we suggest that if the cold waters of the NW Pacific present a physiologic challenge leading to the almost parapatric distribution of the three species, then it is likely that the warm surface temperatures of the South China Sea negate this barrier.
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Volume de collection Numéro de collection Edition
ISSN 2470-1394 ISBN Médium
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Numéro d'Appel MARBEC @ isabelle.vidal-ayouba @ collection 2160
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