ArticleFrontiers in microbiology2015
Comparative genomics of Roseobacter clade bacteria isolated from the accessory nidamental gland of Euprymna scolopes.
Article in Frontiers in microbiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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25 citing papers in PubMed, 44 citations in OpenAlex.
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- Organ structure and bacterial microbiogeography in a reproductive organ of the Hawaiian bobtail squid reveal dimensions of a defensive symbiosis.Applied and environmental microbiology · 2025Article
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- Improving Phylogenies Based on Average Nucleotide Identity, Incorporating Saturation Correction and Nonparametric Bootstrap Support.Systematic biology · 2022Article
- Prevalence and diversity of type VI secretion systems in a model beneficial symbiosis.Frontiers in microbiology · 2022Article
- A lasting symbiosis: how the Hawaiian bobtail squid finds and keeps its bioluminescent bacterial partner.Nature reviews. Microbiology · 2021Review
- Bacterial Dynamics in the Accessory Nidamental Gland of Sepioteuthis lessoniana throughout Maturation.Microbes and environments · 2021Article
- In the beginning: egg-microbe interactions and consequences for animal hosts.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020Review
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- The Characteristics and Expression Profile of Transferrin in the Accessory Nidamental Gland of the Bigfin Reef Squid during Bacteria Transmission.Scientific reports · 2019Article
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- Genome sequence of Epibacterium ulvae strain DSM 24752Environmental microbiome · 2019Article
- Experimental Microbiomes: Models Not to Scale.mSystems · 2019Article
- Mobile colistin resistance gene mcr-5 in porcine Aeromonas hydrophila.The Journal of antimicrobial chemotherapy · 2018Article
- Phylogenomics of Rhodobacteraceae reveals evolutionary adaptation to marine and non-marine habitats.The ISME journal · 2017Article
- Microbial Surface Colonization and Biofilm Development in Marine Environments.Microbiology and molecular biology reviews : MMBR · 2016Review
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The accessory nidamental gland (ANG) of the female Hawaiian bobtail squid, Euprymna scolopes, houses a consortium of bacteria including members of the Flavobacteriales, Rhizobiales, and Verrucomicrobia but is dominated by members of the Roseobacter clade (Rhodobacterales) within the Alphaproteobacteria. These bacteria are deposited into the jelly coat of the squid's eggs, however, the function of the ANG and its bacterial symbionts has yet to be elucidated. In order to gain insight into this consortium and its potential role in host reproduction, we cultured 12 Rhodobacterales isolates from ANGs of sexually mature female squid and sequenced their genomes with Illumina sequencing technology. For taxonomic analyses, the ribosomal proteins of 79 genomes representing both roseobacters and non-roseobacters along with a separate MLSA analysis of 33 housekeeping genes from Roseobacter organisms placed all 12 isolates from the ANG within two groups of a single Roseobacter clade. Average nucelotide identity analysis suggests the ANG isolates represent three genera (Leisingera, Ruegeria, and Tateyamaria) comprised of seven putative species groups. All but one of the isolates contains a predicted Type VI secretion system, which has been shown to be important in secreting signaling and/or effector molecules in host-microbe associations and in bacteria-bacteria interactions. All sequenced genomes also show potential for secondary metabolite production, and are predicted to be involved with the production of acyl homoserine lactones (AHLs) and/or siderophores. An AHL bioassay confirmed AHL production in three tested isolates and from whole ANG homogenates. The dominant symbiont, Leisingera sp. ANG1, showed greater viability in iron-limiting conditions compared to other roseobacters, possibly due to higher levels of siderophore production. Future comparisons will try to elucidate novel metabolic pathways of the ANG symbionts to understand their putative role in host development.
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