Table 5.
Examples of aberrant segregation types for SNP markers in a mapping population.
| Population | Marker | Segregation ratio (XX:XY:YY:ZZ) |
|---|---|---|
| H × TA | Mi_0299 | 60:26:63:76 |
| TA × KP | Mi_0020 | 57:0:43:3 |
| Mi_0171 | 50:1:49:3 | |
| TA Self pollinated | Contig 1638_A98G | 0:66:0:0 |
| Mi_0103 | 50:0:16:0 | |
| I × KP | Mi_0200 | 121:3:52:3 |
| NMBP1243 × KP | Mi_0425 | 72:4:23:1 |
| Contig 6698_C90T | 16:52:32:0 |
Markers exhibited aberrant segregation types in one or more populations and were removed from further analysis. Only three genotypes are distinguishable using SNP assays: Homozygous allele 1 (XX), heterozygous (XY), and homozygous allele 2 (YY). If alleles are inherited as in a diploid, expected segregation ratios dependent on possible parental genotypes are: 1:1 XX:XY, 1:2:1 XX:XY:YY, and 1:1 XY:YY. In the aberrant segregation patterns, ZZ represents either a potential null allele or missing data.