TABLE 1

Tetrad frequency estimates from the best-fitting viability model for African X chromosomes

LineModelÊ0(C.I.)Ê1(C.I.)Ê2(C.I.)Ê3(C.I.)
5EXWild type0.120(0.084, 0.156)0.713(0.709, 0.717)0.167(0.144, 0.182)0(0.0, 0.001)
15EXWild type0.142(0.102, 0.185)0.734(0.660, 0.801)0.124(0.106, 0.145)0(0.0, 0.002)
31EXSingle0.085(0.067, 0.101)0.734(0.732, 0.737)0.181(0.169, 0.189)0(0.0, 0.0)
32EXSingle0.195(0.169, 0.220)0.612(0.596, 0.648)0.181(0.159, 0.202)0.012(0.001, 0.014)
34EXWild type0.119(0.097, 0.139)0.738(0.702, 0.764)0.141(0.129, 0.153)1.7 × 10-3(1.5 × 10-3, 2.1 × 10-3)
36EXSingle0.175(0.159, 0.191)0.679(0.650, 0.701)0.146(0.137, 0.155)0(0.0, 0.0)
  • E3 tetrad frequency estimates of 0 for lines 5EX, 15EX, 31EX, and 36EX reflect the fact that no triple-crossover chromatids were recovered.