Publication Date:
2013-07-16
Description:
Zhou et al. (2007 , Acta Zoologica Sinica, 53 : 1024–1030) reported the eastern Asian freshwater mussel genus Lamproula sensu lato Simpson, 1900 (Unionidae) to be polyphyletic and advocated a revision of the genus- and family-level classifications. However, their taxon sampling and analyses were insufficient to infer accurately the systematic placement of the resultant clades. We reanalysed their mtDNA ND1 and 16S sequences in a broader phylogenetic context. In addition to nine putative species of Lamprotula s. l. , we sampled genera from five of six unionid subfamilies as well as two outgroup families (34 species in total). Both character partitions were analysed separately and in combination under maximum parsimony and maximum likelihood, and combined matrices were also examined using Bayesian inference. Our results confirm support for polyphyly among the species of Lamprotula s. l. , with genus-level clades recovered in two different unionid subfamilies. The taxonomic implications of recognizing two genera, Lamprotula sensu stricto (subfamily Gonideinae) and Aculamprotula Wu, Liang, Wang & Ouyang, 1999 (subfamily Unioninae), are discussed, as are anomalies discovered in the published data. It is concluded that, while Lamprotula s. l. is polyphyletic, a more comprehensive revision is necessary to determine the valid names for these two genera.
Print ISSN:
0260-1230
Electronic ISSN:
1464-3766
Topics:
Biology
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