Molecular phylogenetics of five Corbicula species determined by partial 28S ribosomal RNA gene sequences
2002
Park, G.M. (University Coll. of Medicine, Kangnung, Kangweon-do 210-701 (Korea). Dept. of Parasitology) Chung, E.Y.
The bivalve superfamily Corbiculoidea (Order Veneroida) has two families of special interest, Corbiculidae and Pisidiidae (Pisidiidae is also named Sphaeriidae). The genus Corbicula is present in freshwater, brackish water, and estuaries in southwestern Asia, Africa, the Indian subcontinent, the Pacific Islands, and South America, where it is an important component of benthic communities in both lentic and lotic environments. The present study is based on analysis of sequences from 5' end 285 ribosomal RNA (rRNA) gene five common Corbicula species (C. fluminea, C.papyracea, C. leana, C. japonica from Japan and C, largillierti from China). Fifteen specimens of Corbicula were analyzed. In order to root the phylogenetic trees inferred from the data set, 28S rRNA gene sequence data of Polymesoda maritime, P. caroliniana and S. corneum were obtained from GenBank for the out groups, another member of the families Corbiculidae and Sphaeriidae. Neighbor-joining analysis on the alignment of 412 base pairs of C. fluminea, C. largillierti, C. papyracea, C. leana and C. japonica (with P. maritima, P. caroliniana and Sphaerium corneum chosen as an outgroup) provides a robust molecular phylogeny for the genus. The results of the present study provide potential use of 28S rRNA gene sequence for phylogenies in the family Corbiculidae
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