Multiple cryptic species in the blue-spotted maskray (Myliobatoidei: Dasyatidae: Neotrygon spp.): An update
| Autor: | Philippe Borsa, Thierry B. Hoareau, Kang-Ning Shen, Irma S. Arlyza |
|---|---|
| Přispěvatelé: | Biocomplexité des écosystèmes coralliens de l'Indo-Pacifique (CoReUS2), Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung, National Taiwan Ocean University (NTOU), Pusat Penelitian Oseanografi (P2O), LIPI, Department of Genetics, University of Pretoria [South Africa] |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine Genetic Markers Species complex Neotrygon trigonoides Zoology Biology Parapatric speciation [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomy 010603 evolutionary biology 01 natural sciences General Biochemistry Genetics and Molecular Biology Indo-Pacifique ouest 03 medical and health sciences Distribution parapatrique Species Specificity Phylogenetics Immunology and Microbiology(all) Animals 14. Life underwater Skates Fish Clade Furans Pentanoic Acids Indo-West Pacific Indian Ocean Phylogeny Medicine(all) General Immunology and Microbiology Phylogenetic tree Base Sequence Agricultural and Biological Sciences(all) Cytochrome b Biochemistry Genetics and Molecular Biology(all) Cytochromes c General Medicine Reproductive isolation DNA Cytochromes b biology.organism_classification parapatric distribution Mitochondria 030104 developmental biology Coral Triangle Neotrygon kuhlii General Agricultural and Biological Sciences Maskray Algorithms Triangle du corail |
| Zdroj: | Comptes Rendus Biologies Comptes Rendus Biologies, Elsevier, 2016, 339, pp.417-426. ⟨10.1016/j.crvi.2016.07.004⟩ |
| ISSN: | 1631-0691 |
| DOI: | 10.1016/j.crvi.2016.07.004 |
| Popis: | International audience; Previous investigations have uncovered divergent mitochondrial clades within the blue-spotted maskray, previously Neotrygon kuhlii (Müller 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 9 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. |
| Databáze: | OpenAIRE |
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