TABLE 1

Summary of recombination results from centromere distances for color mutants crossed to wild types from SFS or NFS

Color mutations and the kinds of wild type (wt) to which they were crossed, including the slope (SFS or NFS) and the generation (selfed generation 1, SGI, or selfed generation 2, SG2)Total asci% second division segregation asciχ2 value, SFS wt pooled vs. NFS wt pooledCentromere distance, map units, no interference, k = 1aCentromere distance, map units, if chromosome interference is positive, k = 0.2b
(i) South-facing slope color mutant strains
Sw18.2, selfed generation 1 from the original S3 strain
SFS wt strains, SGI5707747.975.9**42.226.2
NFS wt strains, SGI8067445.538.224.7
Sw24.3, selfed generation 1 from the original S3 strain
SFS wt strains, SGI7404951.659.5**49.628.6
NFS wt strains, SGI7067149.645.327.4
Sw92.1, selfed generation 1 from the original S3 strain
SFS wt strains, SGI3606162.01061.5**88.836.1
NFS wt strains, SGI3065749.545.127.3
Slg60.3, selfed generation 1 from the original S2 strain
SFS wt strains, SGI5394562.972.7**96.036.7
NFS wt strains, SGI4926160.378.234.8
Sw67.1, selfed generation 1 from the original S3 strain
SFS wt strains, SG23448466.677.6**242.239.8
NFS wt strains, SG24499763.6102.837.4
Sg4.3, selfed generation 1 from the original S2 strain
SFS wt strains, SG23153169.123.8**Infinity42.1
NFS wt strains, SG23481467.3Infinity40.3
(ii) North-facing slope color mutants
Swl7.2, selfed generation 1 from the original N5 strain
SFS wt strains, SGI5188549.7132.0**45.727.5
NFS wt strains, SGI5045846.139.225.1
Slgl4.3, selfed generation 1 from the original N5 strain
SFS wt strains, SGI5840552.1216.0**50.729.1
NFS wt strains, SGI4348047.541.526.0
Sw41.3, selfed generation 1 from the original N5 strain
SFS wt strains, SGI5179955.2107.5**58.731.2
NFS wt strains, SGI4705951.950.328.9
Sgl6.2, selfed generation 1 from the original N5 strain
SFS wt strains, SGI5199865.0176.2**123.838.6
NFS wt strains, SGI5263661.182.635.2
Sg21.3, selfed generation 1 from the original N5 strain
SFS wt strains, SGINot fertile
NFS wt strains, SGI4737164.3107.737.8
  • See Table 3 for details, including within-slope variation. Significant (*) or highly significant (**) χ2 values, after making the Bonferroni correction for multiple tests; because there are 10 tests, the usual significance levels of 0.05 and 0.01 are each divided by 10. *P ≤ 0.005; **P ≤ 0.001.

  • aValue obtained from a tetrad mapping function: see materials and methods.

  • bValue obtained from a tetrad mapping function: see materials and methods.