期刊
SYSTEMATICS AND BIODIVERSITY
卷 8, 期 1, 页码 39-47出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/14772000903543004
关键词
16S rRNA; DNA; Ethiopia; genetic divergence; Kenya; Phrynobatrachus; Tanzania; Uganda
资金
- Department of Organismic and Evolutionary Biology, Museum of Comparative Zoology (Harvard University)
- NSF [EF-0334939]
- Museum of Comparative Zoology and a Society
- Federal Ministry of Education and Research, BMBF (Germany)
- German Academic Exchange Service (DAAD)
- DGHT
To investigate intra-and interspecific variability of 'Little Brown Frogs' (LBFs) from East Africa, we analysed molecular data from 23 species of Phrynobatrachus using 16S rRNA, a mitochondrial gene considered a universal DNA barcoding marker in amphibians. Conspecific populations, excluding P. natalensis, exhibited low (0-0.5%) sequence divergences, while conspecific populations of P. natalensis exhibited a wide range of differentiation (0.2-6.4%) with a distinct bimodal distribution, affirming that this may be a complex of cryptic species. Sister species yielded a range of differentiation from 1.5-8.3% with median of 2.3%. Results revealed that at least three non-sister populations of miniaturized puddle frogs are currently identified as P. mababiensis, and a new species from Ethiopia was identified. This first step into revising East African Phrynobatrachus systematics illustrates the necessity of rigorous taxonomic study, especially for groups with confusing or highly incomplete taxonomy.
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