JPR Advance Access originally published online on June 25, 2004
Journal of Plankton Research 2004 26(10):1249-1255; doi:10.1093/plankt/fbh115
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Journal of Plankton Research Vol. 26 No. 10 © Oxford University Press 2004; all rights reserved
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Molecular phylogeny of Neocalanus copepods in the subarctic Pacific Ocean, with notes on non-geographical genetic variations for Neocalanus cristatus
1 Graduate School of Fisheries Sciences, Hokkaido University, 3-1-1 Minato-cho, Hakodate 041-0821, Japan and 2 Centre National de la Recherche Scientifique et Université, Station Zoologique, Villefranche-sur-Mer 06230, France
* Corresponding Author: tom{at}pop.fish.hokudai.ac.jp
Received on March 10, 2003; accepted on June 14, 2004; published online June 25, 2004
Monophylies of Neocalanus cristatus, Neocalanus plumchrus and Neocalanus flemingeri were revealed by nucleotide sequences of mitochondrial 16S rRNA gene (410 bp) but not of nuclear 18S rDNA gene (1802 bp). Intraspecific variations in mitochondrial 16S rRNA of N. cristatus collected from geographically distant regions were very low (<0.5%).