A new genus, Eremitarys gen. nov., and twelve new species of the tribe Euophryini from southwestern China are described: Eremitarys fulva sp. nov., Euochin ailao sp. nov. (♂♀), E. mang sp. nov. (♂), E. memorabilis sp. nov. (♂), E. miao sp. nov. (♂), E. pingbian sp. nov. (♂♀), E. yangtze sp. nov. (♂♀), E. yeyu sp. nov. (♂♀), E. yuan sp. nov. (♂), E. yuxi sp. nov. (♂♀), E. zunyi sp. nov. (♂♀), and Zabka dianmian sp. nov. (♂♀). Diagnostic illustrations and photographs are provided.
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http://dx.doi.org/10.11646/zootaxa.5538.3.1 | DOI Listing |
Mol Cell Biol
November 1995
Department of Biochemistry, University of Rochester School of Medicine and Dentistry, New York 14642, USA.
It was previously shown that three distinct but interdependent elements are required for 3' end formation of mRNA in the yeast Saccharomyces cerevisiae: (i) the efficiency element TATATA and related sequences, which function by enhancing the efficiency of positioning elements; (ii) positioning elements, such as TTAAGAAC and AAGAA, which position the poly(A) site; and (iii) the actual site of polyadenylation. In this study, we have shown that several A-rich sequences, including the vertebrate poly(A) signal AATAAA, are also positioning elements. Saturated mutagenesis revealed that optimum sequences of the positioning element were AATAAA and AAAAAA and that this element can tolerate various extents of replacements.
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