From genome wide SNPs to genomic islands of differentiation: the quest for species diagnostic markers in two scleractinian corals,PocilloporaandPorites DOI Open Access

Romane Deshuraud,

Alexandre Ottaviani, Julie Poulain

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2022, Volume and Issue: unknown

Published: Oct. 21, 2022

Abstract Coral reefs are of paramount importance in marine ecosystems, where they provide support for a large part the biodiversity. Being quite sensitive to global changes, therefore prime targets biodiversity conservation policies. However, such goals require accurate species identification, which notoriously difficult get these highly morphologically variable organisms, rich cryptic species. There is an acute need easy-to-use and resolutive diagnostic molecular markers. The present study builds on huge sequencing effort developed during TARA Pacific expedition develop genotyping strategy assign coral samples correct within two genera ( Porites Pocillopora ). For this purpose, we technique that called “Divergent Fragment” based less than 2kb long genomic fragment determined from metagenomic data subset corals collected. This method has proven be rapid, resolvable cost-effective. Sequencing PCR fragments nested along allowed us 232 individuals genus 247 previously identified independent genetic lineages i . e species). will allow fully analyze collected across Tara opens technological perspectives field population genomics-guided conservation.

Language: Английский

From genomics to integrative species delimitation? The case study of the Indo-Pacific Pocillopora corals DOI Creative Commons
Nicolas Oury, Cyril Noël, Stefano Mona

et al.

Molecular Phylogenetics and Evolution, Journal Year: 2023, Volume and Issue: 184, P. 107803 - 107803

Published: April 28, 2023

Language: Английский

Citations

20
One species to rule them all: genomics sheds light on the Pocillopora species diversity and distinctiveness around the Arabian Peninsula DOI Creative Commons
Nicolas Oury, Michael L. Berumen, Gustav Paulay

et al.

Coral Reefs, Journal Year: 2025, Volume and Issue: unknown

Published: April 28, 2025

Language: Английский

Citations

0
Environmental and geographical factors structure cauliflower coral's algal symbioses across the Indo‐Pacific DOI Open Access
Victoria M. Glynn, Steven V. Vollmer, David I. Kline

et al.

Journal of Biogeography, Journal Year: 2023, Volume and Issue: 50(4), P. 669 - 684

Published: Jan. 9, 2023

Abstract Aim The symbioses between corals and endosymbiotic dinoflagellates have been described as a flexible relationship whose dynamics could serve source of resilience for coral reef ecosystems. However, the factors that drive establishment maintenance this co‐evolutionary remain unclear. We examined environmental geographical structuring dinoflagellate communities in wide‐ranging Indo‐Pacific to begin address gap. Location Djibouti, Oman, Taiwan French Polynesia. Taxon Cauliflower ( Pocillopora spp.), (family Symbiodiniaceae). Methods analysed publicly available amplicon sequence data from nuclear ribosomal DNA internal transcribed spacer 2, originating spp. also compiled such sea surface temperature (SST) time since last local mass bleaching event. ran generalized least squares models, PERMANOVAs indicator species analyses, understand how thermal regimes distances impacted spp.'s Symbiodiniaceae community composition. Results Sea was most important factor driving differences, with largest effect size statistically significant factors. When focusing on individual genera, SST likewise factor. Our analyses revealed specimens had recently bleached were characterized by roughly equal proportions Cladocopium Durusdinium spp., while not similar proportion those bleached, but showed reduction deficiency made up presence Symbiodinium Main Conclusions provide further support hypothesis coral's facilitate host stress. work is direct conversation larger body biogeography literature highlights can impact contemporary population structure, even marine taxa widespread distributions.

Language: Английский

Citations

3
Pocillopora tuahiniensis: a new species of scleractinian coral (Scleractinia, Pocilloporidae) from French Polynesia DOI Open Access
Erika C. Johnston, Scott C. Burgess

Zootaxa, Journal Year: 2023, Volume and Issue: 5369(1), P. 117 - 124

Published: Nov. 7, 2023

Pocillopora tuahiniensis sp. nov. is described based on mitochondrial and nuclear genomic data, algal symbiont genetic geographic isolation, its distribution pattern within reefs that distinct from other sympatric species (Johnston et al. 2022a, b). Mitochondrial data reveal P. a unique species, sister to verrucosa, in clade different of meandrina 2022a). However, the gross situ colony appearance cannot easily be differentiated verrucosa or at Moorea. By sequencing mtORF region, can distinguished species. has so far been sampled French Polynesia, Ducie Island, Rapa Nui (Armstrong 2023; Edmunds 2016; Forsman 2013; Glin 2017; Mayfield 2015; Oury 2021; Voolstra 2023). On fore Moorea, very abundant 10 m one most common these depths 2022b). It also found much lower abundance shallow reef back lagoon. The holotype deposited Smithsonian Institution as USNM-SI 1522390 Genbank accession number OP418359.

Language: Английский

Citations

1
Same places, same stories? Genomics reveals similar structuring and demographic patterns for four Pocillopora coral species in the southwestern Indian Ocean DOI
Nicolas Oury, Stefano Mona, Hélène Magalon

et al.

Journal of Biogeography, Journal Year: 2023, Volume and Issue: 51(4), P. 754 - 768

Published: Dec. 22, 2023

Abstract Aim Efficiently protecting species requires knowing their ecological, life‐history and reproductive traits. This is particularly decisive for scleractinian corals, key components of coral reefs, which are experiencing critical declines. Yet connectivity remains insufficiently documented. Here, we focused on four distinct the genus Pocillopora found in diverse habitats southwestern Indian Ocean presenting various strategies. We aimed to understand whether these traits affect connectivity. Location Archipelagos islands Ocean. Taxon spp. Methods used target capture collect single‐nucleotide polymorphisms (SNPs) from over a thousand colonies sampled across nine localities. From ca. 1400 SNPs retained per species, Bayesian clustering methods, networks demographic inferences were applied first infer population genetic structure each then history population. Results All exhibited almost same structuring pattern, reflecting ecoregions (Madagascar surrounding vs. Mascarene Islands). However, differentiation was stronger ( F ST about 10 times higher) P. acuta , inhabiting more enclosed habitats, such as lagoons shallow waters, reproducing mainly asexually. Similarly, all populations, except those showed signature expansion 100,000 years ago, following penultimate glacial period. Main Conclusions These results indicate reduced gene flow between Madagascar Islands, probably linked currents, suggesting that should be considered independently when setting up conservation plans. In addition, shared histories reflect populations have met environmental constraints reacted similarly, something light ongoing rapid climate change.

Language: Английский

Citations

1
From genome wide SNPs to genomic islands of differentiation: the quest for species diagnostic markers in two scleractinian corals,PocilloporaandPorites DOI Open Access

Romane Deshuraud,

Alexandre Ottaviani, Julie Poulain

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2022, Volume and Issue: unknown

Published: Oct. 21, 2022

Abstract Coral reefs are of paramount importance in marine ecosystems, where they provide support for a large part the biodiversity. Being quite sensitive to global changes, therefore prime targets biodiversity conservation policies. However, such goals require accurate species identification, which notoriously difficult get these highly morphologically variable organisms, rich cryptic species. There is an acute need easy-to-use and resolutive diagnostic molecular markers. The present study builds on huge sequencing effort developed during TARA Pacific expedition develop genotyping strategy assign coral samples correct within two genera ( Porites Pocillopora ). For this purpose, we technique that called “Divergent Fragment” based less than 2kb long genomic fragment determined from metagenomic data subset corals collected. This method has proven be rapid, resolvable cost-effective. Sequencing PCR fragments nested along allowed us 232 individuals genus 247 previously identified independent genetic lineages i . e species). will allow fully analyze collected across Tara opens technological perspectives field population genomics-guided conservation.

Language: Английский

Citations

2