Journal of East China Normal University(Natural Sc ›› 2005, Vol. 2005 ›› Issue (4): 78-86.

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Preliminary Study on Phylogenetic Relationships of Cypridocopina （Ostracoda: Podocopida） Based on 18S rDNA Sequences(Chinese)

YU　Na,ZHAO Mei-ying,CHEN Li-qiao,LI Kai   

  1. School of Life Science, East China Normal University, Shanghai200062, China
  • Received:2004-05-19 Revised:2004-09-08 Online:2005-11-25 Published:2005-11-25
  • Contact: CHEN Li-qiao

Abstract: Nucleotide sequences for the 18S rDNA (1 720 bp) of 11 ostracoda species, representing 3 superfamilies and 5 families, were analyzed based on maximum parsimony （MP） and neighbor joining （NJ）. The topologies of phylogenetic relationships gained by two analytic methods are similar. The results shown: 1） Cypridocopina forms a monophyletic group; 2）Close rationship between Pontocypridoidea and Macrocypridoidea can be postulated; 3）Cypridoidea is considered as a monophyletic group, but the rationships among cypridoidean families could not be resolved from 18S rDNA.

Key words: Cypridocopina, 18S rDNA, phylogeny, ostracodes, Cypridocopina, 18S rDNA, phylogeny

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