Integrating cryptic diversity into coral evolution, symbiosis and conservation

Nature Ecology & Evolution, Journal Year: 2024, Volume and Issue: 8(4), P. 622 - 636

Published: Feb. 13, 2024

Language: Английский

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Finding genes and pathways that underlie coral adaptation

Trends in Genetics, Journal Year: 2024, Volume and Issue: 40(3), P. 213 - 227

Published: Feb. 6, 2024

Language: Английский

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Host transcriptomic plasticity and photosymbiotic fidelity underpin Pocillopora acclimatization across thermal regimes in the Pacific Ocean

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: June 1, 2023

Heat waves are causing declines in coral reefs globally. Coral thermal responses depend on multiple, interacting drivers, such as past exposure, endosymbiont community composition, and host genotype. This makes the understanding of their relative roles adaptive and/or plastic crucial for anticipating impacts future warming. Here, we extracted DNA RNA from 102 Pocillopora colonies collected 32 sites 11 islands across Pacific Ocean to characterize host-photosymbiont fidelity investigate patterns gene expression a historical gradient. We report high show that microalgal respond different drivers. Differences photosymbiotic association had only weak expression, which was more strongly correlated with environment, whereas, photosymbiont largely determined by lineage. Overall, our results reveal three-tiered strategy acclimatization underpinned specificity, transcriptomic plasticity, differential under extreme

Language: Английский

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Cryptic species and hybridisation in corals: challenges and opportunities for conservation and restoration

Published: Feb. 14, 2024

Conservation and management of coral reef ecosystems will depend on accurate assessments reef-building species diversity. However, the true diversity corals may be obfuscated by presence cryptic species, which are likely much more pervasive than is currently recognised. Additionally, sometimes hybridize, resulting in gene introgression between species. Here, we investigate prevalence via a structured literature review find that over 50% population genomic studies show evidence for divisions within taxonomically recognised such closely-related taxa often linked flow. We frequently segregate environment, especially depth, differ phenotypic characteristics including resilience to heat stress. This hidden biodiversity creates challenges conservation restoration planning not well appreciated, hiding declines, biasing estimates species’ breadth, overestimating stressors, yielding uncertainty evolutionary dynamics inferred from past studies, creating reproductive barriers limit mating local translocated corals. Increasing awareness with incomplete boundaries common building this expectation into plans an important pathway forward. Rich opportunities interdisciplinary collaboration among speciation biologists could fill key knowledge gaps relevant conservation. detail recommendations best practice strategies identifying hybrids urge their consideration all future

Language: Английский

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Chromosome-level genome assemblies and genetic maps reveal heterochiasmy and macrosynteny in endangered Atlantic Acropora

BMC Genomics, Journal Year: 2024, Volume and Issue: 25(1)

Published: Nov. 20, 2024

Abstract Background Over their evolutionary history, corals have adapted to sea level rise and increasing ocean temperatures, however, it is unclear how quickly they may respond rapid change. Genome structure genetic diversity contained within highlight adaptive potential. Results We present chromosome-scale genome assemblies linkage maps of the critically endangered Atlantic acroporids, Acropora palmata A. cervicornis . Both were resolved into 14 chromosomes with gene content colinearity. Repeats chromosome arrangements largely preserved between species. The family Acroporidae genus exhibited many phylogenetically significant expansions. Macrosynteny decreased phylogenetic distance. Nevertheless, scleractinians shared six 21 cnidarian ancestral groups as well numerous fission fusion events compared other distantly related cnidarians. Genetic constructed from one 16 families using a genotyping array. consensus span 1,013.42 cM 927.36 for , respectively. species high genome-wide recombination rates (3.04 3.53 cM/Mb) pronounced sex-based differences, known heterochiasmy, 2 2.5X higher estimated in female maps. Conclusions Together, we here are first detailed look at genomic landscapes acroporids. These data sets revealed that capacity acroporids not limited by rates. sister maintain macrosynteny few genes sequence divergence act reproductive barriers them. In hybridization two yields an F1 hybrid fertility despite levels colinearity genomes. these resources now enable association studies discovery quantitative trait loci, tools can aid conservation

Language: Английский

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Cryptic coral community composition across environmental gradients

PLoS ONE, Journal Year: 2025, Volume and Issue: 20(2), P. e0318653 - e0318653

Published: Feb. 6, 2025

Cryptic genetic variation is increasingly being identified in numerous coral species, with prior research indicating that different cryptic lineages can exhibit varied responses to environmental changes. This suggests a potential link between and local conditions. In this study, we investigate how communities of vary along gradients. We began by identifying within six species sampled around St. Croix, USVI based on 2b-RAD sequencing data. then analyzed associations the distributions across (i.e., “cryptic community composition”) ecoregions, or geographically distinct Our findings show depth more significant predictor composition than ecoregions most influential factor among 40 abiotic variables characterize ecoregions. These results imply are influenced both conditions, although exact factors driving these patterns remain unknown. Understanding turnover seascape important consider when outplanting corals restore reef, as locally-adapted may have differential fitness

Language: Английский

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The transnational earth: Evolution meets the World Heritage in model development scenarios for a globally inclusive knowledge economy

Frontiers in Environmental Economics, Journal Year: 2025, Volume and Issue: 4

Published: Feb. 7, 2025

The article explores the global promise of natural reserves knowledge capital that permeate earth's evolutionary and ecological connectivity may constitute greatest reserve sustainability common good economy. It builds case for valuing yielded by basic research inter-relates properties processes across beyond national jurisdictions as a mapping tool World Heritage nominations well collaborations would deliver unique stimulus building conservation-premised transnational economies fully engage developing world. This perspective is vetted in South Pacific Island Region, Eastern Tropical Pacific, Isthmus Panama, via model approaches crafted to empower instrument vitalize economic might scientific exploration planet's biodiversity play central role unlocking potential nature's knowledge-rich pathways redefine world's geography. roadmap toward unleashing energy endeavors stewards new conservation frontiers offered with business grounded confluence wonder contributing an investment platform encourages globally shared benefit

Language: Английский

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One species to rule them all: genomics sheds light on the Pocillopora species diversity and distinctiveness around the Arabian Peninsula

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

Published: April 28, 2025

Language: Английский

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Insights and achievements from the Tara Pacific expedition

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: June 1, 2023

The Tara Pacific program and expedition focused on coral reefs across the Ocean used a coordinated sampling effort to address questions at multiple scales using common suite of samples. Here, we highlight some achievements, discussing benefits long-duration sea expeditions for investigating wide array research within selected ecosystem.

Language: Английский

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Latitudinal variation in thermal performance of the common coral, Pocillopora spp

Journal of Experimental Biology, Journal Year: 2024, Volume and Issue: 227(11)

Published: May 3, 2024

Understanding how tropical corals respond to temperatures is important evaluating their capacity persist in a warmer future. We studied the common Pacific coral Pocillopora over 44° of latitude, and used populations at three islands with different thermal regimes compare responses temperature using performance curves (TPCs) for respiration gross photosynthesis. Corals were sampled local autumn from Moorea, Guam Okinawa, where mean±s.d. annual seawater 28.0±0.9°C, 28.9±0.7°C 25.1±3.4°C, respectively. TPCs similar among latitudes, optimum (Topt) was above maximum all islands, lowest Okinawa. photosynthesis wider, implying greater eurytopy, higher Topt Moorea versus but daily 13% year Okinawa 53% Guam. There variation than or which translated large supply metabolic energy photosynthetically fixed carbon latitudes. Despite these trends, differences spp. not profoundly across reducing likelihood that could better match phenotypes future more extreme through migration. Any such response would place premium on high plasticity tolerance seasonal variations budgets.

Language: Английский

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