Decrypting Corals: Does Regulatory Evolution Underlie Environmental Specialisation of Coral Cryptic Lineages? DOI Open Access
Dominique N. Gallery, John P. Rippe, Mikhail V. Matz

и другие.

Molecular Ecology, Год журнала: 2024, Номер unknown

Опубликована: Окт. 14, 2024

ABSTRACT A recent sequencing study has shown that two common Caribbean corals, Montastraea cavernosa and Siderastrea siderea , each consist of four genetically distinct lineages in the Florida Keys. These are specialised to a certain depth and, lesser extent, nearshore or offshore habitats. We hypothesised lineages' environmental specialisation is at least part due regulatory evolution, which would manifest as emergence groups coregulated genes (‘modules’) demonstrating lineage‐specific responses different reef environments. Our hypothesis also predicted belonging such modules show greater genetic divergence between than other genes. Contrary these expectations, cryptic natural variation were essentially same genome‐wide gene coexpression network level, with much fewer differences expression compared Moreover, none identified exhibit elevated lineages. Possible explanations unexpected results range from leading role algal symbionts and/or microbiome adaptation strong action spatially varying selection equalising patterns despite background. discuss how future studies could assist discriminating possibilities.

Язык: Английский

Octadecanoids as emerging lipid mediators in cnidarian-dinoflagellate symbiosis DOI Creative Commons
Craig E. Wheelock, Marina Tonetti Botana, Robert E. Lewis

и другие.

Research Square (Research Square), Год журнала: 2025, Номер unknown

Опубликована: Янв. 13, 2025

Abstract Oxylipin signaling has been suggested as a potential mechanism for the inter-partner recognition and homeostasis regulation of cnidarian-dinoflagellate symbiosis, which maintains ecological viability coral reefs. Here we assessed effects symbiosis symbiont identity on model cnidarian, sea anemone Exaiptasia diaphana, using mass spectrometry to quantify octadecanoid oxylipins (i.e., 18-carbon-derived oxygenated fatty acids). A total 84 octadecanoids were reported, distinct stereospecificity was observed synthesis R- S-enantiomers symbiont-free anemones free-living cultured dinoflagellate symbionts, respectively. Symbiont-derived 13(S)-hydroxy-octadecatetraenoic acid (13(S)-HOTE) linked 13(S)-lipoxygenase translocated host with 32-fold increase, suggesting it biomarker agonist receptors that regulate inflammatory transcription. Only native Breviolum minutum decreased abundance pro-inflammatory 9(R)-hydroxy-octadecadienoic (9(R)-HODE) in host. In contrast, non-native Durusdinium trenchii marked by higher autoxidation-derived octadecanoids, corroborating previous evidence cellular stress this association. The putative pathways reported here suggest foundational knowledge gaps can support bioengineering selective breeding more optimal host-symbiont pairings enhance resilience survival

Язык: Английский

Процитировано

0
Genome-wide transcriptome analysis reveals the diversity and function of long non-coding RNAs in dinoflagellates DOI Creative Commons
Yibi Chen, Katherine E. Dougan, Quan Nguyen

и другие.

NAR Genomics and Bioinformatics, Год журнала: 2024, Номер 6(1)

Опубликована: Янв. 5, 2024

Dinoflagellates are a diverse group of phytoplankton, ranging from harmful bloom-forming microalgae to photosymbionts coral reefs. Genome-scale data dinoflagellates reveal atypical genomic features, extensive divergence, and lineage-specific innovation gene functions. Long non-coding RNAs (lncRNAs), known regulate expression in eukaryotes, largely unexplored dinoflagellates. Here, using high-quality genome transcriptome data, we identified 48039 polyadenylated lncRNAs three dinoflagellate species: the symbionts

Язык: Английский

Процитировано

3
Coral Restoration in the Omics Era: Development of Point‐of‐Care Tools for Monitoring Disease, Reproduction, and Thermal Stress DOI Creative Commons
Erin Chille, Timothy G. Stephens,

Soumi Nandi

и другие.

BioEssays, Год журнала: 2025, Номер unknown

Опубликована: Апрель 26, 2025

ABSTRACT Coral reef degradation has captured global attention from governments, conservationists, and researchers, who are making concerted efforts to develop sustainable solutions support resilience in the face of environmental degradation. The goal is empower local community for effective marine resource management. However, one major barriers coral conservation lack timely affordable population‐level health data, which can delay management responses. Although progress been made understanding molecular basis outcomes, more translational work needed cost‐effective, point‐of‐care (POC) diagnostic tools real‐time monitoring. This review assesses current state omics‐based research monitoring, focusing on highlighting key gaps actionable next steps guide implementation effective, field‐ready monitoring disease, reproduction, thermal stress. These advancements be used advance urgent needs promote by communities.

Язык: Английский

Процитировано

0
Interspecies differences in the transcriptome response of corals to acute heat stress DOI Creative Commons
Jeric Da‐Anoy, Niño Posadas, Cecilia Conaco

и другие.

PeerJ, Год журнала: 2024, Номер 12, С. e18627 - e18627

Опубликована: Дек. 10, 2024

Rising sea surface temperatures threaten the survival of corals worldwide, with coral bleaching events becoming more commonplace. However, different species are known to exhibit variable levels susceptibility thermal stress. To elucidate genetic mechanisms that may underlie these differences, we compared gene repertoire four species, Favites colemani, Montipora digitata , Acropora digitifera and Seriatopora caliendrum were previously demonstrated have differing responses acute We found tolerant like F. colemani M. possess a greater abundance antioxidant protein families chaperones. Under stress conditions, only S. showed significant response, which was accompanied by activation DNA damage response network drastic upregulation genes (SRGs). This suggests differences in SRG orthologs, as well control expression contribute ability maintain stability physiological functions required survive shifts seawater temperature.

Язык: Английский

Процитировано

2
Genomes of nitrogen-fixing eukaryotes reveal a non-canonical model of organellogenesis DOI Creative Commons
Sarah Frail, Melissa Steele-Ogus, Jon Doenier

и другие.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Авг. 27, 2024

Endosymbiont gene transfer and import of host-encoded proteins are considered hallmarks organelles necessary for stable integration two cells. However, newer endosymbiotic models have challenged the origin timing such genetic during organellogenesis.

Язык: Английский

Процитировано

0
The genome of a giant clam zooxanthella (Cladocopium infistulum) offers few clues to adaptation as an extracellular symbiont with high thermotolerance DOI Creative Commons
Raúl A. González‐Pech, Jihanne Shepherd, Zachary L. Fuller

и другие.

BMC Genomics, Год журнала: 2024, Номер 25(1)

Опубликована: Окт. 1, 2024

Язык: Английский

Процитировано

0
Octadecanoids as emerging lipid mediators in cnidarian-dinoflagellate symbiosis DOI Creative Commons
Marina Tonetti Botana, Robert E. Lewis, Alessandro Quaranta

и другие.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Дек. 15, 2024

Abstract Oxylipin signaling has been suggested as a potential mechanism for the inter-partner recognition and homeostasis regulation of cnidarian-dinoflagellate symbiosis, which maintains ecological viability coral reefs. Here we assessed effects symbiosis symbiont identity on model cnidarian, sea anemone Exaiptasia diaphana , using mass spectrometry to quantify octadecanoid oxylipins ( i.e., 18-carbon-derived oxygenated fatty acids). A total 84 octadecanoids were reported, distinct stereospecificity was observed synthesis R- S -enantiomers symbiont-free anemones free-living cultured dinoflagellate symbionts, respectively. Symbiont-derived 13( )-hydroxy-octadecatetraenoic acid (13( )-HOTE) linked 13 -lipoxygnase translocated host with 32-fold increase, suggesting it biomarker agonist receptors that regulate inflammatory transcription. Only native Breviolum minutum decreased abundance pro-inflammatory 9( R )-hydroxy-octadecadienoic (9( )-HODE) in host. In contrast, non-native Durusdinium trenchii marked by higher autoxidation-derived octadecanoids, corroborating previous evidence cellular stress this association. The putative pathways reported here suggest foundational knowledge gaps can support bioengineering selective breeding more optimal host-symbiont pairings enhance resilience survival

Язык: Английский

Процитировано

0
Decrypting Corals: Does Regulatory Evolution Underlie Environmental Specialisation of Coral Cryptic Lineages? DOI Open Access
Dominique N. Gallery, John P. Rippe, Mikhail V. Matz

и другие.

Molecular Ecology, Год журнала: 2024, Номер unknown

Опубликована: Окт. 14, 2024

ABSTRACT A recent sequencing study has shown that two common Caribbean corals, Montastraea cavernosa and Siderastrea siderea , each consist of four genetically distinct lineages in the Florida Keys. These are specialised to a certain depth and, lesser extent, nearshore or offshore habitats. We hypothesised lineages' environmental specialisation is at least part due regulatory evolution, which would manifest as emergence groups coregulated genes (‘modules’) demonstrating lineage‐specific responses different reef environments. Our hypothesis also predicted belonging such modules show greater genetic divergence between than other genes. Contrary these expectations, cryptic natural variation were essentially same genome‐wide gene coexpression network level, with much fewer differences expression compared Moreover, none identified exhibit elevated lineages. Possible explanations unexpected results range from leading role algal symbionts and/or microbiome adaptation strong action spatially varying selection equalising patterns despite background. discuss how future studies could assist discriminating possibilities.

Язык: Английский

Процитировано

0