Extensive analysis of nuclear cistron rDNA sequence of Paracyclopina nana (Cyclopoida: Cyclopettidae)
- Title
- Extensive analysis of nuclear cistron rDNA sequence of Paracyclopina nana (Cyclopoida: Cyclopettidae)
- Author
- 이재성
- Keywords
- Copepod; Cyclopoid; Nuclear rDNA; Paracyclopina nana; Transcription repeat unit
- Issue Date
- 2011-02
- Publisher
- SPRINGER, VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
- Citation
- HYDROBIOLOGIA,권: 666 호: 1 페이지: 3-9
- Abstract
- As a special reference of the nuclear cistron rDNA of cyclopoid copepods, we obtained the entire DNA sequence of a single rDNA repeat unit from Paracyclopina nana (Cyclopoida: Cyclopettidae). The genomic organization of P. nana rDNA (7,974 bp, 51.7% of GC) was observed to be 18S-ITS1-5.8S-ITS2-28S-IGS in order. Comparative analyses of the rDNA between P. nana and other copepods showed that the intergenic spacer (IGS) was highly informative and divergent, while other coding regions are relatively conserved. We detected eleven poly(T) tracts in the IGS, demonstrating the high AT content in this region. In addition, many sub-repeat sequence patterns (e.g., AG, AT, GC, CCG, TC) such as microsatellites were identified from the rDNA IGS of P. nana. In this article, we show the first complete sequence of rDNA from the order Cyclopoida, providing a better understanding of molecular characteristics in molecular taxonomy.
- URI
- https://link.springer.com/article/10.1007%2Fs10750-010-0563-6https://repository.hanyang.ac.kr/handle/20.500.11754/72705
- ISSN
- 0018-8158; 1573-5117
- DOI
- 10.1007/s10750-010-0563-6
- Appears in Collections:
- COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > CHEMISTRY(화학과) > Articles
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