NDLI: Phylogenetic Analyses of Bactrocera Fruit Flies (Diptera: Tephritidae) Based on Nucleotide Sequences of the Mitochondrial COI and COII Genes

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Phylogenetic Analyses of Bactrocera Fruit Flies (Diptera: Tephritidae) Based on Nucleotide Sequences of the Mitochondrial COI and COII Genes

Content Provider	Semantic Scholar
Author	Nakahara, Shigehito Muraji, Masahiko
Copyright Year	2008
Abstract	A1 .3 kb portion of mitochondrial DNA containing the tRNA Leu and flanking COI and COII regions was sequenced from 70 individuals representing 27 species of the genus Bactrocera Macquart and one outgroup, Anastrepha ludens (Loew). The sequences were aligned unambiguously except at the junction between the tRNA Leu and COII, where an 84 bp insertion was observed in A. ludens .P air-wise comparisons of the sequences revealed that nucleotide substitutions were highly biased at the third codon position, and that C Tt ransitions were saturated among taxa at higher taxonomic levels. Resolu- tion was greatly improved in parsimony analyses, in which C Tt ransitions at the third codon position were down-weighted. Although topologies obtained in distance and maximum parsimony analyses gen- erally agreed with each other, they partially disagreed with currently accepted morphological classific- ations. For example, monophylies of the subgenera Bactrocera Macquart and Zeugodacus Hendel were not confirmed in that they included species of Gymnodacus Munro and Austrodacus Perkins respective- ly. The Bactrocera dorsalis complex was revealed to contain more heterogeneous species than previous- ly considered. Based on these results, Bactrocera species relationships and the integrity of several supraspecific groupings were discussed.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.maff.go.jp/pps/j/guidance/r_bulletin/pdf/rb044_001.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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