| radiation and divergence in the rhagoletis pomonella species complex: inferences from dna sequence data. | here, we investigate the evolutionary history and pattern of genetic divergence in the rhagoletis pomonella (diptera: tephritidae) sibling species complex, a model for sympatric speciation via host plant shifting, using 11 anonymous nuclear genes and mtdna. we report that dna sequence results largely coincide with those of previous allozyme studies. rhagoletis cornivora was basal in the complex, distinguished by fixed substitutions at all loci. gene trees did not provide reciprocally monophyleti ... | 2008 | 18312319 |