Mitochondrial DNA evolution in the Montium-species subgroup of Drosophila.
نویسندگان
چکیده
Mitochondrial DNA (mtDNA) restriction-site maps for six species (10 strains) of the Drosophila montium subgroup were established. A total of 50 restriction sites were mapped, corresponding to 1.67% of the mtDNA genome. On the basis of differences in the restriction sites, nucleotide divergence (delta) was calculated for each pair of species (strains), and phylogenetic trees were constructed by using distance-matrix and parsimony methods. Comparison of the resultant phylogenetic trees shows that the sibling species D. auraria and D. quadraria are closely related. At the other extreme, considerable divergence was observed between the two strains of D. serrata and between D. serrata and D. birchii, a finding that contrasts with their grouping within the same species complex. Nevertheless, our data indicate that these six oriental montium species are rather closely related.
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ورودعنوان ژورنال:
- Molecular biology and evolution
دوره 10 2 شماره
صفحات -
تاریخ انتشار 1993