| phylogenetic analysis of north american rhagoletis (diptera: tephritidae) and related genera using mitochondrial dna sequence data. | partial sequences (approximately 850 bp) of the mitochondrial 16s ribosomal rna gene were determined for 21 members of the fruit fly genus rhagoletis and 6 related tephritid taxa by sequencing dna amplified by the polymerase chain reaction. sequences were highly a + t rich, with an average g + c content of 19.2%. sequence divergence ranged from 0 to 11.7% among the included taxa. sequences were used to reconstruct the phylogeny of this group of flies with neighbor-joining and maximum parsimony m ... | 1997 | 9007016 |