Mayr, Dobzhansky, and Bush and the complexities of sympatric speciation in Rhagoletis - PubMed (original) (raw)

MP gene trees for P220 (A), mtDNA (B), P661 (C), P309 (D), P3060 (E), and P2620 (F). Trees are scaled so that the longest distance from an allele to the outgroup R. electromorpha (R. elect.) are relatively the same across loci. Chromosome position for loci, bootstrap support for nodes (10,000 replicates), sequence lengths (in bp), and branch lengths (no. of steps) are given. Exact location for P3060 is not known, but the locus does not map to chromosomes 1-3. For locus 220 in A, haplotypes are abbreviated as follows: N, North United States; SN, South/North United States; and M, Mexican (gray). For the other four nuclear loci and mtDNA, U.S. haplotypes are black and Mexican haplotypes are gray. Open circles indicate the contrast between deep and shallow RNDs shown for chromosome 1-3 loci and mtDNA (A and B) vs. genes that do not reside in rearrangements (_C_-F). Taxa, hosts, location, and collecting dates (month/day/year) are as follows: MI, R. pomonella [apple (M. pumila) and hawthorn (C. mollis)], Grant, MI, 8/15/95; NY, R. pomonella [hawthorn (C. mollis)], Geneva, NY, 9/16/00; TX, R. pomonella [hawthorn (C. mollis)], Brazos Bend, TX, 10/6/89; CJ, R. pomonella n.s. [hawthorn (C. mexicana)], Coajomulco, Morelos, Mexico, 11/12/02; MC, R. pomonella n.s. [hawthorn (C. mexicana and C. rosei rosei)], Tancitaro, Michoacan, Mexico, 11/15/02; and R. electromorpha [gray dogwood (Cornus racemosa)], Dowagiac, MI, 9/12/99. Gene trees do not include all of the sequenced alleles for each locus, but subsets that encapsulate the general topological structure for trees. Also, networks incorporating recombinant alleles are not shown for P661 and P3060. Additional alleles and networks are given in

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