Publications des scientifiques de l'IRD

Borsa Philippe, Shen K. N., Arlyza I. S., Hoareau T. B. (2016). Multiple cryptic species in the blue-spotted maskray (Myliobatoidei : Dasyatidae : Neotrygon spp.) : an update. Comptes Rendus Biologies, 339 (9-10), p. 417-426. ISSN 1631-0691.

Titre du document
Multiple cryptic species in the blue-spotted maskray (Myliobatoidei : Dasyatidae : Neotrygon spp.) : an update
Année de publication
2016
Type de document
Article référencé dans le Web of Science WOS:000387441000011
Auteurs
Borsa Philippe, Shen K. N., Arlyza I. S., Hoareau T. B.
Source
Comptes Rendus Biologies, 2016, 339 (9-10), p. 417-426 ISSN 1631-0691
Previous investigations have uncovered divergent mitochondrial clades within the blue-spotted maskray, previously Neotrygon kuhlii (Muller and Henle). The hypothesis that the blue-spotted maskray may consist of a complex of multiple cryptic species has been proposed, and four species have been recently described or resurrected. To test the multiple cryptic species hypothesis, we investigated the phylogenetic relationships and coalescence patterns of mitochondrial sequences in a sample of 127 new individuals from the Indian Ocean and the Coral Triangle region, sequenced at both the CO1 and cytochrome b loci. The maximum-likelihood (ML) tree of concatenated CO1 + cytochrome b gene sequences, rooted by the New Caledonian maskray N. trigonoides, yielded 9 strongly supported, main clades. Puillandre's ABGD algorithm detected gaps in nucleotide distance consistent with the ML phylogeny. The general mixed Yule-coalescent algorithm partitioned the dataset into putative species generally consistent with the ML phylogeny. Nuclear markers generally confirmed that distinct mitochondrial clades correspond to genetically isolated lineages. The nine main lineages identified by ML analysis were geographically distributed in a parapatric fashion, indicating reproductive isolation. The hypothesis of multiple cryptic species is thus validated.
Plan de classement
Limnologie biologique / Océanographie biologique [034]
Description Géographique
PACIFIQUE ; OCEAN INDIEN ; NOUVELLE CALEDONIE ; INDONESIE ; PHILIPPINES ; MALAISIE ; AFRIQUE DE L'EST
Localisation
Fonds IRD [F B010068328]
Identifiant IRD
fdi:010068328
Contact