TABLE 3

Crossover distributions

Crossover interval
StrainConversion
 typeII or IIIIII or IIIIII
MJL2902 None12 7347
 Full ura332 2
 PMS ura3 4 1 21 8
 Full arg4 012
 PMS arg4 2 13 3
 Co-conversion10 4 10 4 7
 Total28371171667
MJL2870 None15 8836
 Full ura315 0
 PMS ura3 6 12 2
 Full arg4 020
 PMS arg4 1 1510
 Co-conversion 3 4  7 5 4
 Total25191222552
Allelic None55 6341
 Full URA320 0
 PMS URA318 4 27 5
 Full arg4 110
 PMS arg4 3  8 6
 Co-conversion 6 3  4 6 9
 Total81271021661
  • Intervals I, II, and III are illustrated in Figure 4. Allelic data are pooled from MJL2936 and MJL2957, as in Table 2. In tetrads with full conversion or aberrant 4:4 segregation of ura3-EcPal+104, COs in intervals I and II cannot be distinguished; in tetrads with full conversion or aberrant 4:4 segregation of arg4-EcPal+9, COs in intervals II and III cannot be distinguished.