Journal article
Cytochrome oxidase I-based phylogenetic relationships among the Pomatiopsidae, Hydrobiidae, Rissoidae and Truncatellidae (Gastropoda: Caenogastropoda: Rissoacea)
Malacologia, Vol.40(1-2)
01 Jan 1998
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Abstract
The Gondwanian-derived Asian pomatiopsid radiation is taxonomically complex, diversity-rich, and widely deployed geographically. This Asian branch of the family has coevolved with such human trematode parasites as Schistosoma and Paragonimus; it is ideally suitable for studying patterns and processes of evolution over 100 million years. Cytochrome c oxidase subunit I gene sequences are used here to elucidate taxonomic relationships from the subspecies to familial level. In Chinese literature, pomatiopsid taxa have been classified in the Hydrobiidae; what are the genetic relationships between Hydrobia and allied taxa classified as pomatiopsid? Sixteen sequences, ranging in length from 578 to 645 nucleotides, are aligned from 11 species of nine genera assigned to seven families, four of which are rissoacean. Five different phylogenetic analyses are concordant: (1) the pomatiopsid taxa are in one distinct clade, the other rissoaceans form a second clade; (2) truncatellids are more closely allied to the hydrobiids than to the pomatiopsids; (3) the rissoid Setia is part of the truncatellid-hydrobiid clade; (4) two subspecies of Oncomelania are clearly divergent; (5) triculine taxa appear divergent from pomatiopsine taxa. However, the Tricula sp. node is weakly supported. Individuals of a population differ by an average of 0.005 plus or minus 0.004 nucleotide differences/site: the subspecies of Oncomelania differ by 0.148 plus or minus 0.004; the two species of Hydrobia differ by 0.162 (range of 0.161 - 0.163); the triculine genera Tricula and Gammatricula differ by 0.132 (range of 0.130 - 0.133); the pomatiopsid subfamilies Pomatiopsinae and Triculinae differ by 0.179 plus or minus 0.020; the families Hydrobiidae and Pomatiopsidae differ by 0.267 plus or minus 0.016. Non-rissoacean and rissoacean taxa differ by 0.274 plus or minus 0.023.
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Details
- Title
- Cytochrome oxidase I-based phylogenetic relationships among the Pomatiopsidae, Hydrobiidae, Rissoidae and Truncatellidae (Gastropoda: Caenogastropoda: Rissoacea)
- Creators
- G DavisT WilkeC SpolskyChi-Ping QiuDong-Chuan QiuMing-Yi XiaYi ZhangG Rosenberg
- Publication Details
- Malacologia, Vol.40(1-2)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Biodiversity, Earth, and Environmental Science (BEES); Malacology
- Identifiers
- 991019170544304721
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