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A new yeti crab phylogeny: Vent origins with indications of regional extinction in the East Pacific
- Title
- A new yeti crab phylogeny: Vent origins with indications of regional extinction in the East Pacific
- Authors
- Roterman, Christopher Nicolai; Lee, Won-Kyung; Liu, Xinming; Lin, Rongcheng; Li, Xinzheng; Won, Yong-Jin
- Ewha Authors
- 원용진
- SCOPUS Author ID
- 원용진
- Issue Date
- 2018
- Journal Title
- PLOS ONE
- ISSN
- 1932-6203
- Citation
- PLOS ONE vol. 13, no. 3
- Publisher
- PUBLIC LIBRARY SCIENCE
- Indexed
- SCIE; SCOPUS
- Document Type
- Article
- Abstract
- The recent discovery of two new species of kiwaid squat lobsters on hydrothermal vents in the Pacific Ocean and in the Pacific sector of the Southern Ocean has prompted a re-analysis of Kiwaid biogeographical history. Using a larger alignment with more fossil calibrated nodes than previously, we consider the precise relationship between Kiwaidae, Chirostylidae and Eumunididae within Chirostyloidea (Decapoda: Anomura) to be still unresolved at present. Additionally, the placement of both new species within a new "Bristly" clade along with the seep-associated Kiwa puravida is most parsimoniously interpreted as supporting a vent origin for the family, rather than a seep-to-vent progression. Fossil-calibrated divergence analysis indicates an origin for the clade around the Eocene-Oligocene boundary in the eastern Pacific similar to 33-38 Ma, coincident with a lowering of bottom temperatures and increased ventilation in the Pacific deep sea. Likewise, the mid-Miocene (similar to 10-16 Ma) rapid radiation of the new Bristly clade also coincides with a similar cooling event in the tropical East Pacific. The distribution, diversity, tree topology and divergence timing of Kiwaidae in the East Pacific is most consistent with a pattern of extinctions, recolonisations and radiations along fast-spreading ridges in this region and may have been punctuated by large-scale fluctuations in deep-water ventilation and temperature during the Cenozoic; further affecting the viability of Kiwaidae populations along portions of mid-ocean ridge.
- DOI
- 10.1371/journal.pone.0194696
- Appears in Collections:
- 자연과학대학 > 생명과학전공 > Journal papers
- Files in This Item:
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