Organisms associated with siphonophores revealed by short-read whole-genome sequencing
- 1Yale University
Abstract
Siphonophores are associated with prey, parasites, microbes, and other organisms in the open ocean, but little is known about these siphonophore cobionts. To learn more about them, we investigated molecular bycatch: their DNA captured during siphonophore genome sequencing. We reanalysed 213 specimens of Physalia, Nanomia, Bargmannia and other siphonophores sequenced in four previously published studies. We recovered 104 bacterial genomes forming 32 genome clusters, including recurrent Metamycoplasmataceae and diverse proteobacteria, groups also found with other cnidarians. Bacterial communities differed among Physalia species sampled in the southwestern Pacific. We identified non-siphonophore eukaryotes from ribosomal markers in 38 specimens, including fish and copepods consistent with prey, parasitic flatworms, and Perkinsela-like relatives of amoeba endosymbionts. Alfonsino (Beryx) sequences in one Hawaiian P. utriculus specimen are consistent with capture of pelagic young of deepwater fishes. Molecular bycatch reveals the diversity of siphonophore associates from specimens already collected for genome research.
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BibTeX
@misc{dunn2026organisms,
title = {{Organisms associated with siphonophores revealed by short-read whole-genome sequencing}},
author = {C. W. Dunn and N. Ahuja and D. Destanovic and M. K. Manko and M. Dal Bello and S. H. Church},
howpublished = {bioRxiv},
year = {2026},
month = oct,
doi = {10.64898/2026.10.29.762746},
url = {https://www.biorxiv.org/content/10.64898/2026.10.29.762746v1},
note = {CC BY},
}
RIS
TY - UNPB
TI - Organisms associated with siphonophores revealed by short-read whole-genome sequencing
AU - C. W. Dunn
AU - N. Ahuja
AU - D. Destanovic
AU - M. K. Manko
AU - M. Dal Bello
AU - S. H. Church
PY - 2026
DA - 2026/10/29
PB - bioRxiv
DO - 10.64898/2026.10.29.762746
UR - https://www.biorxiv.org/content/10.64898/2026.10.29.762746v1
AB - Siphonophores are associated with prey, parasites, microbes, and other organisms in the open ocean, but little is known about these siphonophore cobionts. To learn more about them, we investigated molecular bycatch: their DNA captured during siphonophore genome sequencing. We reanalysed 213 specimens of Physalia, Nanomia, Bargmannia and other siphonophores sequenced in four previously published studies. We recovered 104 bacterial genomes forming 32 genome clusters, including recurrent Metamycoplasmataceae and diverse proteobacteria, groups also found with other cnidarians. Bacterial communities differed among Physalia species sampled in the southwestern Pacific. We identified non-siphonophore eukaryotes from ribosomal markers in 38 specimens, including fish and copepods consistent with prey, parasitic flatworms, and Perkinsela-like relatives of amoeba endosymbionts. Alfonsino (Beryx) sequences in one Hawaiian P. utriculus specimen are consistent with capture of pelagic young of deepwater fishes. Molecular bycatch reveals the diversity of siphonophore associates from specimens already collected for genome research.
ER -