Phylogeny reconstruction and taxonomic revision of the genus Drosophila by super-tree and -matrix analyses

点击翻译按钮获取中文摘要

With a perspective of revising the classification system of the whole genus Drosophila, which includes a famous model organism, D. melanogaster, some unsolved problems in its phylogeny were addressed using DNA molecular information. In addition, we developed a novel, sequence-partitioning procedure for phylogenetic tree construction by the Neighbor Joining (NJ) method, to cope with heterogeneous evolutionary processes in different gene regions. Our novel method for NJ tree construction will be useful in saving time of computation, in comparison to other methods, from a huge dataset based on genome-scale sequences, which are now becoming available but include many regions under heterogeneous evolutionary processes.