caa a22 4500 445894458 CHVBK 20180317145627.0 cr unu---uuuuu 170323e20110501xx s 000 0 eng 10.1007/s10750-010-0563-6 doi (NATIONALLICENCE)springer-10.1007/s10750-010-0563-6 Extensive analysis of nuclear cistron rDNA sequence of Paracyclopina nana (Cyclopoida: Cyclopettidae) [Elektronische Daten] [Jang-Seu Ki, Heum Park, Jae-Seong Lee] 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 (7,974bp, 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. Springer Science+Business Media B.V., 2010 Copepod nationallicence Cyclopoid nationallicence Nuclear rDNA nationallicence Paracyclopina nana nationallicence Transcription repeat unit nationallicence Ki Jang-Seu Department of Green Life Science, College of Convergence, Sangmyung University, 110-743, Seoul, South Korea aut Park Heum Faculty of Marine Bioscience and Technology, College of Life Sciences, Kangnung National University, 210-702, Gangneung, South Korea aut Lee Jae-Seong National Research Lab of Marine Molecular and Environmental Bioscience, Department of Chemistry, College of Natural Sciences, Hanyang University, 133-791, Seoul, South Korea aut Hydrobiologia Springer Netherlands 666/1(2011-05-01), 3-9 0018-8158 666:1<3 2011 666 10750 https://doi.org/10.1007/s10750-010-0563-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10750-010-0563-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ki Jang-Seu Department of Green Life Science, College of Convergence, Sangmyung University, 110-743, Seoul, South Korea aut NATIONALLICENCE 700 1- Park Heum Faculty of Marine Bioscience and Technology, College of Life Sciences, Kangnung National University, 210-702, Gangneung, South Korea aut NATIONALLICENCE 700 1- Lee Jae-Seong National Research Lab of Marine Molecular and Environmental Bioscience, Department of Chemistry, College of Natural Sciences, Hanyang University, 133-791, Seoul, South Korea aut NATIONALLICENCE 773 0- Hydrobiologia Springer Netherlands 666/1(2011-05-01), 3-9 0018-8158 666:1<3 2011 666 10750 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer