Species and population genomic differentiation in Pocillopora corals (Cnidaria, Hexacorallia)

Type Article
Date 2022-10
Language English
Author(s) Aurelle DidierORCID1, 2, 3, 14, Pratlong MarineORCID1, 4, 15, Oury NicolasORCID5, Haguenauer AnneORCID2, 6, Gélin Pauline5, Magalon HélèneORCID5, Adjeroud MehdiORCID5, 6, Romans Pascal7, Vidal-Dupiol JeremieORCID8, Claereboudt MichelORCID9, Reynes LauricORCID1, Toulza EveORCID16, Bonhomme FrançoisORCID10, Mitta GuillaumeORCID11, 16, Pontarotti PierreORCID12, 13
Affiliation(s) 1 : Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO, Marseille, France
2 : Aix Marseille Univ, Avignon Université, CNRS, IRD, IMBE, Marseille, France
3 : Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum National d’Histoire Naturelle, CNRS, Sorbonne Université, EPHE, 57 rue Cuvier, 75005, Paris, France
4 : Aix Marseille Univ, CNRS, Centrale Marseille, I2M, Marseille, France
5 : UMR ENTROPIE (Université de La Réunion, IRD, IFREMER, Université de Nouvelle-Calédonie, CNRS), Université de La Réunion, Saint-Denis La Réunion, France
6 : PSL Université Paris, USR CRIOBE—EPHE-UPVD-CNRS, 3278, Perpignan, France
7 : Centre de Ressources Biologiques Marines, Sorbonne Universités, UPMC Univ Paris 06, Observatoire Océanologique, UMS 2348, Banyuls/Mer, France
8 : IHPE, Univ. Montpellier, CNRS, Ifremer, Univ. Perpignan Via Domitia, Montpellier France, Montpellier, France
9 : Department of Marine Science and Fisheries, College of Agricultural and Marine Sciences, Sultan Qaboos University, Al-Khod, 123, Muscat, Sultanate of Oman
10 : ISEM, Univ Montpellier, CNRS, IRD, EPHE, 34000, Montpellier, France
11 : EIO, Univ Polynesie Francaise, ILM, IRD, Ifremer, 98719, Tahiti, French Polynesia, France
12 : Aix Marseille Université, IRD, APHM, MEPHI, IHU Méditerranée Infection, 19–21 Boulevard Jean Moulin, 13005, Marseille, France
13 : SNC5039 CNRS, 19–21 Boulevard Jean Moulin, 13005, Marseille, France
14 : Campus de Luminy—Oceanomed, 13288, Marseille cedex 09, France
15 : Equipe Evolution Biologique et Modélisation, Marseille, France
16 : IHPE, Univ. Montpellier, CNRS, Ifremer, Univ. Perpignan Via Domitia, Perpignan, France
Source Genetica (0016-6707) (Springer Science and Business Media LLC), 2022-10 , Vol. 150 , N. 5 , P. 247-262
DOI 10.1007/s10709-022-00165-7
WOS© Times Cited 1
Keyword(s) Coral, Species delineation, RAD-sequencing, Pocillopora, Genetic structure, Clonal reproduction

Correctly delimiting species and populations is a prerequisite for studies of connectivity, adaptation and conservation. Genomic data are particularly useful to test species differentiation for organisms with few informative morphological characters or low discrimination of cytoplasmic markers, as in Scleractinians. Here we applied Restriction site Associated DNA sequencing (RAD-sequencing) to the study of species differentiation and genetic structure in populations of Pocillopora spp. from Oman and French Polynesia, with the objectives to test species hypotheses, and to study the genetic structure among sampling sites within species. We focused here on coral colonies morphologically similar to P. acuta (damicornis type β). We tested the impact of different filtering strategies on the stability of the results. The main genetic differentiation was observed between samples from Oman and French Polynesia. These samples corresponded to different previously defined primary species hypotheses (PSH), i.e., PSHs 12 and 13 in Oman, and PSH 5 in French Polynesia. In Oman, we did not observe any clear differentiation between the two putative species PSH 12 and 13, nor between sampling sites. In French Polynesia, where a single species hypothesis was studied, there was no differentiation between sites. Our analyses allowed the identification of clonal lineages in Oman and French Polynesia. The impact of clonality on genetic diversity is discussed in light of individual-based simulations.

Full Text
File Pages Size Access
16 1 MB Access on demand
30 2 MB Access on demand
Author's final draft 66 3 MB Open access
Top of the page

How to cite 

Aurelle Didier, Pratlong Marine, Oury Nicolas, Haguenauer Anne, Gélin Pauline, Magalon Hélène, Adjeroud Mehdi, Romans Pascal, Vidal-Dupiol Jeremie, Claereboudt Michel, Reynes Lauric, Toulza Eve, Bonhomme François, Mitta Guillaume, Pontarotti Pierre (2022). Species and population genomic differentiation in Pocillopora corals (Cnidaria, Hexacorallia). Genetica, 150(5), 247-262. Publisher's official version : https://doi.org/10.1007/s10709-022-00165-7 , Open Access version : https://archimer.ifremer.fr/doc/00792/90426/