분자와 형태형질을 이용한 북극해 두 종, Strongylocentrotus droebachiensis와 S. pallidus의 식별

Title
분자와 형태형질을 이용한 북극해 두 종, Strongylocentrotus droebachiensis와 S. pallidus의 식별
Alternative Title
Identification of Two Congeneric Arctic Sea Urchin Species, Strongylocentrotus droebachiensis and S. pallidus by Molecular and Morphological Discrimination
Author(s)
김고은; 이윤호
KIOST Author(s)
Lee, Youn Ho(이윤호)
Publication Year
2005-11-04
Abstract
Regular sea urchins of the family Strongylocentrotidae belong to the phylum Echinodermata (spiny skinned animals). These organisms are one of the most excellent experimental model systems in reproductive biology, embryology, toxicology, gene regulation, evolutionary biology. In the Arctic sea, there are two species, Strongylocentrotus droebachiensis and S. pallidus of which identification is often confused by appearance. Here, we analyzed discriminating characters between the two Arctic species in terms of molecular and morphological characteristics. For the molecular characters, we analyzed mt DNA sequences of 12SrDNA (838nt) and cytochorome oxidase subunit I (COI, 1078nt). Different nucleotides between the two species are observed at 18 sites (2.14%) in 12SrDNA and 43 sites (3.99%) in COI sequences. For morphological characters, we noticed differences in the tube feet color (dark vs light), the number of pore pairs (5-6 vs 6-7) and the number of wedges in primary spines (26-36 vs 17-26). These total evidences provide useful means of identification for the two hitherto confused Arctic sea urchin species
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/41209
Bibliographic Citation
한국해양학회 2005년 추계 학술대회, pp.386, 2005
Publisher
한국해양학회
Type
Conference
Language
English
Publisher
한국해양학회
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