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| Delrieu‐trottin, Erwan; Durand, Jean‐dominique; Limmon, Gino; Sukmono, Tedjo; Kadarusman,; Sugeha, Hagi Yulia; Chen, Wei‐jen; Busson, Frédéric; Borsa, Philippe; Dahruddin, Hadi; Sauri, Sopian; Fitriana, Yuli; Zein, Mochamad Syamsul Arifin; Hocdé, Régis; Pouyaud, Laurent; Keith, Philippe; Wowor, Daisy; Steinke, Dirk; Hanner, Robert; Hubert, Nicolas. |
| DNA barcoding opens new perspectives on the way we document biodiversity. Initially proposed to circumvent the limits of morphological characters to assign unknown individuals to known species, DNA barcoding has been used in a wide array of studies where collecting species identity constitutes a crucial step. The assignment of unknowns to knowns assumes that species are already well identified and delineated, making the assignment performed reliable. Here, we used DNA‐based species delimitation and specimen assignment methods iteratively to tackle the inventory of the Indo‐Australian Archipelago grey mullets, a notorious case of taxonomic complexity that requires DNA‐based identification methods considering that traditional morphological identifications... |
| Tipo: Text |
Palavras-chave: Coral Triangle; Cryptic diversity; DNA barcoding; Reference library; Taxonomic gap. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00606/71810/70300.pdf |
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| Borsa, Philippe. |
| The genetic structuration of populations of the palourde, Ruditapes decussatus, a bivalve species of the Mediterranean coastal lagoons, was studied at the enzymatic gene level, in relation to their ecology and their demography. A genetic comparison of local populations of the Languedocian lagoons suggested that they constitute a metapopulation. In the Thau lagoon, genetic heterogeneity could be related to demographic features. Genetic differences between cohorts appeared to account for significant heterozygote deficiencies, although not fully explaining them. For this, a Wahlund effect could be rejected. The hypothesis of selection affecting pre-recruits appeared most likely and it was confirmed by preliminary results of experiments conducted on larvae. It... |
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| Ano: 1990 |
URL: http://archimer.ifremer.fr/doc/00073/18421/15962.pdf |
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| Nikolic, Natacha; Devloo-delva, Floriaan; Bailleul, Diane; Noskova, Ekaterina; Rougeux, Clément; Liautard-haag, Cathy; Hassan, Mohamad; Marie, Amandine; Borsa, Philippe; Feutry, Pierre; Grewe, Peter; Davies, Campbell; Farley, Jessica; Fernando, Daniel; Biton Porsmoguer, Sébastien; Poisson, Francois; Parker, Denham; Aulich, Jorden; Lansdell, Matt; Marsac, Francis; Arnaud-haond, Sophie. |
| The blue shark Prionace glauca is a cosmopolitan species that inhabits all oceans worldwide except the poles. Several IUCN regional assessments have classified it as Near Threatened, mostly due to overfishing. Previous genetic studies that have used classical genetic markers failed to reject the hypothesis that the species is a single worldwide population (panmixia). As such, the blue shark was proposed to be an archetype of the ‘grey zone of population differentiation’, named to signify those cases common in the marine realm, where the split among population is too recent or too faint to be detected using classical genetic markers. Here, samples collected across the majority of the global range of blue shark were sequenced (using a specific genome scan... |
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| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00645/75701/76606.pdf |
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| Durand, Jean-dominique; Borsa, Philippe. |
| The low level of morphometric variability and the poor phylogenetic information borne by the morpho-anatomical characters used thus far in the systematics of grey mullets (Mugilidae) emphasize the utility of molecular systematics in this family. A recent mitochondrial phylogeny of grey mullets has uncovered multiple deep lineages within several species, flagging putative cryptic species. Here, we considered that several of the deeply divergent lineages represent separate species based on either the tree topology, independent data from nuclear markers, geographic distributions, or a combination of the foregoing. By analogy with these well-documented cases, we considered other deep lineages in seven genera we focused on to represent putative cryptic species.... |
| Tipo: Text |
Palavras-chave: Molecular taxonomy; Revision; Chelon; Crenimugil; Dajaus; Ellochelon; Mugil; Osteomugil; Planiliza. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00626/73854/73613.pdf |
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