期刊
MARINE DRUGS
卷 20, 期 12, 页码 -出版社
MDPI
DOI: 10.3390/md20120730
关键词
venoms; toxins; transcriptomics; hemolytic; symbiosis; Anthozoa; clownfish; Entacmaea; Stichodactyla; Heteractis
This study investigates the potential impact of the symbiotic relationship between clownfish and sea anemones on the venom profiles of the host. Transcriptomic data analysis reveals that hemolytic and hemorrhagic toxins are consistently dominant and diverse across all species examined.
Sea anemones are predatory marine invertebrates and have diverse venom arsenals. Venom is integral to their biology, and is used in competition, defense, and feeding. Three lineages of sea anemones are known to have independently evolved symbiotic relationships with clownfish, however the evolutionary impact of this relationship on the venom composition of the host is still unknown. Here, we investigate the potential of this symbiotic relationship to shape the venom profiles of the sea anemones that host clownfish. We use transcriptomic data to identify differences and similarities in venom profiles of six sea anemone species, representing the three known clades of clownfish-hosting sea anemones. We recovered 1121 transcripts matching verified toxins across all species, and show that hemolytic and hemorrhagic toxins are consistently the most dominant and diverse toxins across all species examined. These results are consistent with the known biology of sea anemones, provide foundational data on venom diversity of these species, and allow for a review of existing hierarchical structures in venomic studies.
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