Multi-locus sequence data reveal a new species of coral reef goby (Teleostei: Gobiidae: Eviota), and evidence of Pliocene vicariance across the Coral Triangle

Here, multi‐locus sequence data are coupled with observations of live colouration to recognize a new species, Eviota punyit from the Coral Triangle, Indian Ocean and Red Sea. Relaxed molecular clock divergence time estimation indicates a Pliocene origin for the new species, and the current distribut...

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Bibliographic Details
Published in:Journal of fish biology 2016-05, Vol.88 (5), p.1811-1834
Main Authors: Tornabene, L., Valdez, S., Erdmann, M. V., Pezold, F. L.
Format: Article
Language:English
Subjects:
Animal Distribution
Animals
Biodiversity
centre of overlap
Coral Reefs
dwarfgoby
Fishes - classification
Fishes - genetics
Fishes - physiology
Genetic Speciation
Geography
Indian Ocean
Indo Australian Archipelago
Indo Malay Archipelago
Pacific Ocean
Sequence Analysis, DNA
Species Specificity
systematics
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Summary:Here, multi‐locus sequence data are coupled with observations of live colouration to recognize a new species, Eviota punyit from the Coral Triangle, Indian Ocean and Red Sea. Relaxed molecular clock divergence time estimation indicates a Pliocene origin for the new species, and the current distribution of the new species and its sister species Eviota sebreei supports a scenario of vicariance across the Indo‐Pacific Barrier, followed by subsequent range expansion and overlap in the Coral Triangle. These results are consistent with the ‘centre of overlap’ hypothesis, which states that the increased diversity in the Coral Triangle is due in part to the overlapping ranges of Indian Ocean and Pacific Ocean faunas. These findings are discussed in the context of other geminate pairs of coral reef fishes separated by the Indo‐Pacific Barrier.
ISSN:0022-1112
1095-8649
DOI:10.1111/jfb.12947