Nov 19
Web content doesn’t stay the same forever. Over time, pages get moved, deleted, or taken offline, which leaves behind broken links and missing references. This problem is known as link rot, and it affects every corner of the internet. If you run a WordPress site, these dead links can hurt your SEO and make readers …
Jun 19
Science. 2025 Jun 19;388(6753):1248-1249. doi: 10.1126/science.adz8343. Epub 2025 Jun 19. ABSTRACT With DNA focused almost entirely on replication, newly discovered organism blurs the line between cells and viruses. PMID:40536972 | DOI:10.1126/science.adz8343
Jun 04
Microbes Environ. 2025;40(2):ME25005. doi: 10.1264/jsme2.ME25005. ABSTRACT Bacteria with endosymbiotic lifestyles often show marked genome reduction. While the shrinkage of genomes in intracellular symbionts of animals, including parasitic bacteria, has been extensively exami-ned, less is known about symbiotic bacteria associated with single-celled eukaryotes. We herein report the genomes of two novel gammaproteobacterial lineages, RS3 and XS4, …
Jun 04
Bacteria with endosymbiotic lifestyles often show marked genome reduction. While the shrinkage of genomes in intracellular symbionts of animals, including parasitic bacteria, has been extensively exami-ned, less is known about symbiotic bacteria associated with single-celled eukaryotes. We herein report the genomes of two novel gammaproteobacterial lineages, RS3 and XS4, identified as putative parasitic endosymbionts of the dinoflagellate Citharistes regius. Phylogenetic ana-lyses suggest that…
Mar 29
Commun Biol. 2025 Mar 28;8(1):510. doi: 10.1038/s42003-025-07905-3. ABSTRACT Giant viruses are extraordinary members of the virosphere due to their structural complexity and high diversity in gene content. Haptophytes are ecologically important primary producers in the ocean, and all known viruses that infect haptophytes are giant viruses. However, little is known about the specifics of their …
Mar 03
Zeaxanthin, an oxygenated carotenoid derivative with potent antioxidative properties, is produced by many organism taxa. Flavobacteriaceae are widely distributed in marine environments; however, the zeaxanthin biosynthesis property in this family remains incompletely explored. Here, we characterized zeaxanthin production by marine Flavobacteriaceae strains and elucidated underlying molecular mechanisms. Eight Flavobacteriaceae strains were isolated from the phycosphere of various…
Feb 14
G3 (Bethesda). 2025 Apr 17;15(4):jkaf030. doi: 10.1093/g3journal/jkaf030. ABSTRACT Dinoflagellates are a diverse group of microplankton that include free-living, symbiotic, and parasitic species. Amoebophrya, a basal lineage of parasitic dinoflagellates, infects a variety of marine microorganisms, including harmful-bloom-forming algae. Although there are currently 3 published Amoebophrya genomes, this genus has considerable genomic diversity. We add to …
Jan 04
Commun Biol. 2025 Jan 4;8(1):7. doi: 10.1038/s42003-024-07423-8. ABSTRACT Symbioses are major drivers of organismal diversification and phenotypic innovation. However, how long-term symbioses shape whole genome evolution in metazoans is still underexplored. Here, we use a giant clam (Tridacna maxima) genome to demonstrate how symbiosis has left complex signatures in an animal’s genome. Giant clams thrive …
Oct 04
Dinoflagellates are a remarkable group of protists, not only for their association with harmful algal blooms and coral reefs but also for their numerous characteristics deviating from the rules of eukaryotic biology. Genome research on dinoflagellates has lagged due to their immense genome sizes in most species (~ 1-250 Gbp). Nevertheless, the last decade marked a fruitful era of dinoflagellate genomics, with 27 genomes sequenced and many insights attained. This review aims to synthesize…
Oct 01
CONCLUSION: Although this investigation of Cladocopium infistulum revealed no patterns diagnostic of heat tolerance or extracellular symbiosis in terms of overrepresentation of gene functions or genes under selection, it provided a valuable genomic resource for comparative analyses. It also indicates that ecological divergence among Cladocopium species, and potentially among other dinoflagellates, is partially governed by mechanisms other than gene content. Thus, additional high-quality,…