Methylation Pattern and Expression Dynamics of Methylase and Photosystem Genes Under varying light Intensities in <i>Fugacium kawagutii</i> (Symbiodiniaceae)

Yang, Feng; Li, Ling; Lin, Senjie

doi:10.1111/jpy.13070

Cited by 11 publications

(9 citation statements)

References 43 publications

(86 reference statements)

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“…Such epigenetic mechanisms can increase thermal tolerance by enhancing the activation of genetic stress responses ( Eirin-Lopez & Putnam, 2019 ). An increase in heat tolerance through epigenetic changes can occur in both host corals and/or endosymbionts ( Putnam, Davidson & Gates, 2016 ; Liew et al, 2018 ; Yang, Li & Lin, 2020 ). These possible mechanisms for improving heat-stress tolerance in Acropora corals may not be mutually exclusive; future studies are needed to examine these mechanisms in a multidirectional manner.…”

Section: Discussionmentioning

confidence: 99%

Short-term improvement of heat tolerance in naturally growing Acropora corals in Okinawa

Singh

Sakai

Ishida‐Castañeda

et al. 2023

PeerJ

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Mass bleaching and subsequent mortality of reef corals by heat stress has increased globally since the late 20th century, due to global warming. Some experimental studies have reported that corals may increase heat tolerance for short periods, but only a few such studies have monitored naturally-growing colonies. Therefore, we monitored the survival, growth, and bleaching status of Acropora corals in fixed plots by distinguishing individual colonies on a heat-sensitive reef flat in Okinawa, Japan. The level of heat stress, assessed by the modified version of degree heating week duration in July and August, when the seawater temperature was the highest, was minimally but significantly higher in 2017 than in 2016; however, the same colonies exhibited less bleaching and mortality in 2017 than in 2016. Another study conducted at the same site showed that the dominant unicellular endosymbiotic algal species did not change before and after the 2016 bleaching, indicating that shifting and switching of the Symbiodiniaceae community did not contribute to improved heat tolerance. Colonies that suffered from partial mortality in 2016 were completely bleached at higher rates in 2017 than those without partial mortality in 2016. The present results suggest that either genetic or epigenetic changes in coral hosts and/or algal symbionts, or the shifting or switching of microbes other than endosymbionts, may have improved coral holobiont heat tolerance.

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Section: Discussionmentioning

confidence: 99%

Short-term improvement of heat tolerance in naturally growing Acropora corals in Okinawa

Singh

Sakai

Ishida‐Castañeda

et al. 2023

PeerJ

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“…However, the extent of gene expression changes among Symbiodiniaceae is often surprisingly subtle (e.g., Barshis et al, 2014;Davies et al, 2018;Parkinson et al, 2016), although this is a matter of current debate (e.g., Bellantuono et al, 2019;Voolstra et al, 2021d). Furthermore, transcription can be influenced through alternatively spliced transcripts (Lin, 2011;Méndez et al, 2015), RNA editing (Liew et al, 2017;Mungpakdee et al, 2014;Shoguchi et al, 2020), microRNA interactions (Baumgarten et al, 2018), and methylation of mRNAs (de Mendoza et al, 2018;Lohuis and Miller, 1998;Yang et al, 2020).…”

Section: How Can Transcriptomics Proteomics and Single-cell Technique...mentioning

confidence: 99%

Building Consensus around the Assessment and Interpretation of Symbiodiniaceae Diversity

Davies¹,

Gamache²,

Howe‐Kerr³

et al. 2022

Preprint

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Within microeukaryotes, genetic and functional variation sometimes accumulate more quickly than morphological differences. To understand the evolutionary history and ecology of such lineages, it is key to examine diversity at multiple levels of organization. In the dinoflagellate family Symbiodiniaceae, which can form endosymbioses with cnidarians (e.g., corals, octocorals, sea anemones, jellies), other marine invertebrates (e.g., sponges, molluscs, flatworms), and protists (e.g., foraminifera), molecular data have been used extensively over the past three decades to describe phenotypes and to make evolutionary and ecological inferences. Despite advances in Symbiodiniaceae genomics, a lack of consensus among researchers with respect to interpreting genetic data has slowed progress in the field and acted as a barrier to reconciling observations. Here, we identify key challenges regarding the assessment and interpretation of Symbiodiniaceae genetic diversity across three levels: species, populations, and communities. We summarize areas of agreement and highlight techniques and approaches that are broadly accepted. In areas where debate remains, we identify unresolved issues and discuss technologies and approaches that can help to fill knowledge gaps related to genetic and phenotypic diversity. We also discuss ways to stimulate progress, in particular by fostering a more inclusive and collaborative research community. We hope that this perspective will inspire and accelerate coral reef science by serving as a resource to those designing experiments, publishing research, and applying for funding related to Symbiodiniaceae and their symbiotic partnerships.

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“…However, such a conclusion is premature because relationships between polycistronic expression and expression regulation have yet to be determined in dinoflagellate genomes (Yang et al. 2020 ).…”

Section: Nuclear Genomic Features Of Symbiotic Dinoflagellatesmentioning

confidence: 99%

Gene clusters for biosynthesis of mycosporine‐like amino acids in dinoflagellate nuclear genomes: Possible recent horizontal gene transfer between species of Symbiodiniaceae (Dinophyceae)

Shoguchi

2021

Journal of Phycology

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Global warming increases the temperature of the ocean surface, which can disrupt dinoflagellate‐coral symbioses and result in coral bleaching. Photosynthetic dinoflagellates of the family Symbiodiniaceae include bleaching‐tolerant and bleaching‐sensitive coral symbionts. Therefore, understanding the molecular mechanisms for changing symbiont diversity is potentially useful to assist recovery of coral holobionts (corals and their associated microbes, including multiple species of Symbiodiniaceae), although sexual reproduction has not been observed in the Symbiodiniaceae. Recent molecular phylogenetic analyses estimate that the Symbiodiniaceae appeared 160 million years ago and diversified into 15 groups, five genera of which now have available draft genomes (i.e., Symbiodinium, Durusdinium, Breviolum, Fugacium, and Cladocopium). Comparative genomic analyses have suggested that crown groups have fewer gene families than early‐diverging groups, although many genes that were probably acquired via gene duplications and horizontal gene transfers (HGTs) have been found in each decoded genome. Because UV stress is likely a contributor to coral bleaching, and because the highly conserved gene cluster for mycosporine‐like amino acid (MAA) biosynthesis has been found in thermal‐tolerant symbiont genomes, I reviewed genomic features of the Symbiodiniaceae, focusing on possible acquisition of a biosynthetic gene cluster for MAAs, which absorb UV radiation. On the basis of highly conserved noncoding sequences, I hypothesized that HGTs have occurred among members of the Symbiodiniaceae and have contributed to the diversification of Symbiodiniaceae–host relationships. Finally, I proposed that bleaching tolerance may be strengthened by multiple MAAs from both symbiotic dinoflagellates and corals.

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Methylation Pattern and Expression Dynamics of Methylase and Photosystem Genes Under varying light Intensities in Fugacium kawagutii (Symbiodiniaceae)

Cited by 11 publications

References 43 publications

Short-term improvement of heat tolerance in naturally growing Acropora corals in Okinawa

Short-term improvement of heat tolerance in naturally growing Acropora corals in Okinawa

Building Consensus around the Assessment and Interpretation of Symbiodiniaceae Diversity

Gene clusters for biosynthesis of mycosporine‐like amino acids in dinoflagellate nuclear genomes: Possible recent horizontal gene transfer between species of Symbiodiniaceae (Dinophyceae)

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