한국해역에 서식하는 홍어과 어류의 분자계통 진화

Title
한국해역에 서식하는 홍어과 어류의 분자계통 진화
Alternative Title
Molecular phylogenetic relationships and evolution of the family Rajidae inhabiting the Korean waters
Author(s)
정다금; 김성; 김충곤; 이윤호
KIOST Author(s)
Kim, Sung(김성)Kim, Choong Gon(김충곤)Lee, Youn Ho(이윤호)
Publication Year
2014-07-02
Abstract
Despite wide interest in the group of batoids, there is no molecular phylogenetic analysis of Rajidae inhabiting the Korean waters. A comprehensive genus-level sampling ( > 60% species-level) was made from the genera Okamejei, Dipturus, Hongeo, Raja, Bathyraja for the analysis of intergeneric relationships. Using 13 Protein coding genes (PCG) of mitochondrial genome and 2 nuclear genes (RAG1, SCFD2) from 40 species including other family of batoids and one shark as an outgroup, are resolved most relationships with high confidence of Rajidae family inhabiting the Korean waters. The resulted phylogeny is compared with the previous morphological and genetic studies showing relationships among Rajidae. Moreover the full time-calibrated tree of Rajidae evolution is investigated using 9 fossil information as well as molecular data. Rajidae represent an older group that originated ~ 69.5 Ma (K/T boundary), with most diversification occurring since the early miocene (~ 23.5 Ma) related with the radiation of other marine biota. In addition, a hypothesis of the negative correlation between depths and divergence times of skates in the Korean waters is suggested.geo, Raja, Bathyraja for the analysis of intergeneric relationships. Using 13 Protein coding genes (PCG) of mitochondrial genome and 2 nuclear genes (RAG1, SCFD2) from 40 species including other family of batoids and one shark as an outgroup, are resolved most relationships with high confidence of Rajidae family inhabiting the Korean waters. The resulted phylogeny is compared with the previous morphological and genetic studies showing relationships among Rajidae. Moreover the full time-calibrated tree of Rajidae evolution is investigated using 9 fossil information as well as molecular data. Rajidae represent an older group that originated ~ 69.5 Ma (K/T boundary), with most diversification occurring since the early miocene (~ 23.5 Ma) related with the radiation of other marine biota. In addition, a hypothesis of the negative correlation between depths and divergence times of skates in the Korean waters is suggested.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/40934
Bibliographic Citation
한국수산과학총연합회 국제학술대회, pp.132, 2014
Publisher
한국수산과학총연합회
Type
Conference
Language
English
Publisher
한국수산과학총연합회
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