TABLE 1

Genetic differentiation and gene flow between the OST and O3+4 chromosomal arrangements

Acph-1rp49S25P22P154P2S1P21Concatenated
 dataa
Shared191222 6 4 2 6 3 62
Fixed 3 2 0 910 3 5 4 34
SX17334363239501227269
SX27244736452692856414
DXY 0.0191 0.0145 0.0143 0.0170 0.0157 0.0157 0.0138 0.0106  0.0153
FST 0.43 0.50 0.44 0.52 0.66 0.54 0.59 0.51  0.52
K*S 3.15*** 2.39*** 2.78*** 2.59*** 2.51*** 2.7*** 1.92*** 2.49***  4.60***
  • *** P < 0.001.

  • a Analysis performed in the concatenated data set that includes all six newly reported regions and only 28 of the 41 Acph-1 sequences (see materials and methods).

  • Shared, polymorphic sites segregating for the same two variants in both arrangements; Fixed, fixed differences among arrangements; SX1, sites polymorphic in OST and monomorphic in O3+4; SX2, sites polymorphic in O3+4 and monomorphic in OST; DXY, average number of nucleotide differences per site between arrangements; K*S, genetic differentiation test statistic (see materials and methods); FST, proportion of nucleotide diversity attributable to variation among arrangements.