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Article

Indo-Pacific Phylogeography of the Lemon Sponge Leucetta chagosensis

1
Department of Botany & Zoology, University of Stellenbosch, Private Bag X1, Matieland 7602, South Africa
2
Mauritius Oceanography Institute, Avenue des Anchois, Morcellement de Chazal, Albion 91005, Mauritius
3
Department of Earth and Environmental Sciences, Palaeontology and Geobiology, Ludwig-Maximilians Universität München, Richard-Wagner-Str. 10, 80333 München, Germany
4
GeoBio-Center, Ludwig-Maximilians-Universität München, Richard-Wagner-Str. 10, 80333 München, Germany
5
SNSB- Bayerische Staatssammlung für Paläontologie und Geologie, Richard-Wagner-Str. 10, 80333 München, Germany
*
Author to whom correspondence should be addressed.
Diversity 2020, 12(12), 466; https://doi.org/10.3390/d12120466
Received: 10 October 2020 / Revised: 26 November 2020 / Accepted: 27 November 2020 / Published: 7 December 2020
(This article belongs to the Special Issue Molecular Biodiversity of Marine Invertebrates)
The sponge Leucetta chagosensis Dendy (1913) has a wide distribution throughout the Indo-Pacific (IP) region, with previous studies focussing primarily on the western Pacific Ocean. To increase our knowledge of the spatial variation of genetic diversity throughout the IP, we constructed a phylogeny for L. chagosensis for the IP to assess the evolutionary patterns for this species. We generated 188 sequences of L. chagosensis and constructed maximum likelihood and Bayesian inference trees, using concatenated mitochondrial cytochrome oxidase subunit 3 gene (cox3) and nuclear ribosomal RNA gene (28S) markers for the first time. The spatial variation of genetic diversity of L. chagosensis was assessed using a phylogeographic approach. Leucetta chagosensis is composed of five cryptic lineages confined to different biogeographic regions with the specimens found in the Indian Ocean differing significantly from those found in the rest of the IP region. Genetic divergence was particularly high for the cox3 marker, with a low nucleotide diversity but high haplotype diversity for most lineages. This study highlights the need for a sustained effort in studying sponge diversity, boosted by the ongoing discovery of hidden biodiversity among this ecologically important taxon. View Full-Text
Keywords: cryptic lineages; marine diversity; Indian Ocean; marine species evolution cryptic lineages; marine diversity; Indian Ocean; marine species evolution
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MDPI and ACS Style

Pasnin, O.; Voigt, O.; Wörheide, G.; Murillo Rincón, A.P.; von der Heyden, S. Indo-Pacific Phylogeography of the Lemon Sponge Leucetta chagosensis. Diversity 2020, 12, 466. https://doi.org/10.3390/d12120466

AMA Style

Pasnin O, Voigt O, Wörheide G, Murillo Rincón AP, von der Heyden S. Indo-Pacific Phylogeography of the Lemon Sponge Leucetta chagosensis. Diversity. 2020; 12(12):466. https://doi.org/10.3390/d12120466

Chicago/Turabian Style

Pasnin, Olivier, Oliver Voigt, Gert Wörheide, Andrea P. Murillo Rincón, and Sophie von der Heyden. 2020. "Indo-Pacific Phylogeography of the Lemon Sponge Leucetta chagosensis" Diversity 12, no. 12: 466. https://doi.org/10.3390/d12120466

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