Genomic analysis of an ultrasmall freshwater green alga, Medakamo hakoo DOI Creative Commons
Shoichi Kato, Osami Misumi, Shinichiro Maruyama

и другие.

Communications Biology, Год журнала: 2023, Номер 6(1)

Опубликована: Янв. 23, 2023

Ultrasmall algae have attracted the attention of biologists investigating basic mechanisms underlying living systems. Their potential as effective organisms for producing useful substances is also interest in bioindustry. Although genomic information indispensable elucidating metabolism and promoting molecular breeding, many ultrasmall remain genetically uncharacterized. Here, we present nuclear genome sequence an green alga freshwater habitats, Medakamo hakoo. Evolutionary analyses suggest that this species belongs to a new genus within class Trebouxiophyceae. Sequencing revealed its genome, comprising 15.8 Mbp 7629 genes, among smallest known genomes Viridiplantae. Its has relatively few genes associated with genetic processing, basal transcription factors, RNA transport. Comparative 1263 orthogroups were shared 15 from distinct phylogenetic lineages. The gene sets will enable identification essential algal cellular functions.

Язык: Английский

Genome sequence and cell biological toolbox of the highly regenerative, coenocytic green feather alga Bryopsis DOI

K Ochiai,

Daiki Hanawa,

Harumi Ogawa

и другие.

The Plant Journal, Год журнала: 2024, Номер 119(2), С. 1091 - 1111

Опубликована: Апрель 20, 2024

Green feather algae (Bryopsidales) undergo a unique life cycle in which single cell repeatedly executes nuclear division without cytokinesis, resulting the development of thallus (>100 mm) with characteristic morphology called coenocyte. Bryopsis is representative coenocytic alga that has exceptionally high regeneration ability: extruded cytoplasm aggregates rapidly seawater, leading to formation protoplasts. However, genetic basis biology remains poorly understood. Here, we present high-quality assembly and annotation genome sp. (90.7 Mbp, 27 contigs, N50 = 6.7 14 034 protein-coding genes). Comparative genomic analyses indicate genes encoding BPL-1/Bryohealin, aggregation-promoting lectin, are heavily duplicated Bryopsis, whereas homologous absent other ulvophyceans, suggesting capability Bryopsis. possesses >30 kinesins but only myosin, differs from green have multiple types myosin genes. Consistent this biased motor toolkit, observed bidirectional motility chloroplasts was dependent on microtubules not actin Most required for cytokinesis plants including those SNARE or kinesin superfamily. Nevertheless, crucial initiation (NACK/Kinesin-7II) hardly expressed part thallus, possibly underlying lack portion. The sequence lays foundation experimental macroalgae.

Язык: Английский

Процитировано

4
Multiple techniques point to oxygenic phototrophs dominating the Isopora palifera skeletal microbiome DOI
Francesco Ricci, Alexander Fordyce, William Leggat

и другие.

Coral Reefs, Год журнала: 2021, Номер 40(2), С. 275 - 282

Опубликована: Фев. 15, 2021

Язык: Английский

Процитировано

26
Effects of Ocean Warming on the Underexplored Members of the Coral Microbiome DOI Creative Commons
Justin Maire, Patrick Buerger, Wing Yan Chan

и другие.

Integrative and Comparative Biology, Год журнала: 2022, Номер 62(6), С. 1700 - 1709

Опубликована: Март 6, 2022

Abstract The climate crisis is one of the most significant threats to marine ecosystems. It leading severe increases in sea surface temperatures and frequency magnitude heatwaves. These changing conditions are directly impacting coral reef ecosystems, which among biodiverse ecosystems on Earth. Coral-associated symbionts particularly affected because summer heatwaves cause bleaching—the loss endosymbiotic microalgae (Symbiodiniaceae) from tissues, starvation death. Symbiodiniaceae bacteria have been extensively studied context change, especially terms community diversity dynamics. However, data other microorganisms their response change scarce. Here, we review current knowledge how increasing affect understudied coral-associated such as archaea, fungi, viruses, protists than Symbiodiniaceae, well microbe-microbe interactions. We show that coral-microbe symbiosis equilibrium at risk under predicted future argue conservation initiatives should include microbe-focused approaches.

Язык: Английский

Процитировано

18
Light quality affects chlorophyll biosynthesis and photosynthetic performance in Antarctic Chlamydomonas DOI

Mackenzie C. Poirier,

Kassandra Fugard,

Marina Cvetkovska

и другие.

Photosynthesis Research, Год журнала: 2025, Номер 163(1)

Опубликована: Янв. 20, 2025

Язык: Английский

Процитировано

0
The genomic insights of intertidal adaptation in Bryopsis corticulans DOI Open Access
Peng Xu, Xueyang Liu,

Ke Lei

и другие.

New Phytologist, Год журнала: 2025, Номер unknown

Опубликована: Март 20, 2025

Many marine green algae thrive in intertidal zones, adapting to complex light environments that fluctuate between low underwater and intense sunlight. Exploring their genomic bases could help comprehend the diversity of adaptation strategies response environmental pressures. Here, we developed a novel practical strategy assemble high-confidence algal genomes sequenced high-quality genome Bryopsis corticulans, an zone macroalga Bryopsidales order Chlorophyta originated 678 million years ago. Comparative analyses revealed previously overlooked whole duplication event closely related species, Caulerpa lentillifera. A total 100 genes were acquired through horizontal gene transfer, including homolog cryptochrome photoreceptor CRY gene. We also found all four species studied lack key photoprotective (LHCSR, PsbS, CYP97A3, VDE) involved xanthophyll cycle energy-dependent quenching processes. elucidated expansion light-harvesting antenna biosynthesis pathways for siphonein siphonaxanthin B. corticulans likely contribute its conditions. Our study unraveled underlying special genetic basis Bryopsis' environments, advancing our understanding plant adaptive evolution.

Язык: Английский

Процитировано

0
Restoration innovation: Fusing microbial memories to engineer coral resilience DOI
Colin J. Anthony, Sarah Lemer, Laurie J. Raymundo

и другие.

One Earth, Год журнала: 2025, Номер 8(3), С. 101193 - 101193

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0
Distribution of Conchocelis of Red Algae Bangia sp. in the Nacreous Layer of Akoya Pearl Oyster Pinctada fucata Shell DOI
Yukino Mizutani, Naoki Kato,

Madoka Okamura

и другие.

Marine Biotechnology, Год журнала: 2025, Номер 27(3)

Опубликована: Апрель 16, 2025

Язык: Английский

Процитировано

0
Whole genome population structure of North Atlantic kelp confirms high‐latitude glacial refugia DOI Creative Commons
Trevor Bringloe, Antoine Fort, Masami Inaba

и другие.

Molecular Ecology, Год журнала: 2022, Номер 31(24), С. 6473 - 6488

Опубликована: Окт. 6, 2022

Coastal refugia during the Last Glacial Maximum (~21,000 years ago) have been hypothesized at high latitudes in North Atlantic, suggesting marine populations persisted through cycles of glaciation and are potentially adapted to local environments. Here, whole-genome sequencing was used test whether Atlantic coastal kelp Alaria esculenta survived area southwestern Greenland Maximum. We present first annotated genome for A. call variant positions 54 individuals from Canada, Greenland, Faroe Islands, Norway Ireland. Differentiation across reflected ~1.9 million single nucleotide polymorphisms, which further revealed mixed ancestry Islands between putative Greenlandic European lineages. Time-calibrated organellar phylogenies suggested were established last interglacial period more than 100,000 ago, that population probably following Patterns statistics, including diversity, minor allele frequencies, heterozygosity linkage disequilibrium decay, nonetheless reduced Canadian small effective sizes most recent glaciation. Functional differentiation exon read coverage, expansions unique 337 exons representing 162 genes, a modest degree loss (103 56 genes). Altogether, our genomic results provide strong evidence resilient past climatic fluctuations related glaciations high-latitude already conditions as result.

Язык: Английский

Процитировано

16
The trace metal economy of the coral holobiont: supplies, demands and exchanges DOI Creative Commons
Hannah Reich, Emma F. Camp, Liza M. Roger

и другие.

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Год журнала: 2022, Номер 98(2), С. 623 - 642

Опубликована: Ноя. 22, 2022

The juxtaposition of highly productive coral reef ecosystems in oligotrophic waters has spurred substantial interest and progress our understanding macronutrient uptake, exchange, recycling among holobiont partners (host coral, dinoflagellate endosymbiont, endolithic algae, fungi, viruses, bacterial communities). By contrast, the contribution trace metals to physiological performance and, turn, functional ecology reef-building corals remains unclear. holobiont's metal economy is a network supply, demand, exchanges upheld by cross-kingdom symbiotic partnerships. Each partner unique requirements that are central their biochemical functions metabolic stability holobiont. Organismal homeostasis determine ability adjust fluctuating supplies heterogeneous environments. This review details for core biological processes describes how key sustaining complex nutritional symbioses Specifically, we discuss contribute compatibility, cope with stress, thereby organismal fitness distribution. Beyond cycling, outline dynamic nature availability environmental can be influenced variability abiotic factors (e.g. temperature, light, pH, etc.). Climate change will have profound consequences on further intensify myriad stressors influence survival. Lastly, suggest future research directions necessary impacts spanning subcellular levels, which inform nutrient cycling more broadly. Collectively, this cross-scale elucidation role allow us improve forecasts function.

Язык: Английский

Процитировано

15
Evolution of the regulatory subunits for the heteromeric acetyl-CoA carboxylase DOI
Ana Caroline Conrado, Gabriel Lemes Jorge, R. Shyama Prasad Rao

и другие.

Philosophical Transactions of the Royal Society B Biological Sciences, Год журнала: 2024, Номер 379(1914)

Опубликована: Сен. 29, 2024

The committed step for de novo fatty acid (FA) synthesis is the ATP-dependent carboxylation of acetyl-coenzyme A catalysed by acetyl-CoA carboxylase (ACCase). In most plants, ACCase a multi-subunit complex orthologous to prokaryotes. However, unlike prokaryotes, plant and algal orthologues are comprised both catalytic additional dedicated regulatory subunits. Novel subunits, biotin lipoyl attachment domain-containing proteins (BADC) carboxyltransferase interactors (CTI) (both three-gene families in

Язык: Английский

Процитировано

3