Table 1. Predicted segregation patterns for completely sex-linked RAD markers given a ZW chromosomal sex determination system in dioecious (ESP) and androdioecious (KOE) populations.
| Population |
ESP |
KOE |
|||
|---|---|---|---|---|---|
| Sexual system |
Dioecious |
Androdioecious |
|||
| Sex | Female | Male |
Hermaphrodite |
Male | |
| Monogenic | Amphigenic | ||||
| Genetic model (sex-linked allele segregation pattern) | ZW | ZZ | WW | ZW | ZZ |
| W-specific markers | |||||
| Pattern | + | Ø | + | + | Ø |
| Coveragea | 0.5 | − | 1.0 | 0.5 | − |
| Polymorphism | Hem. | − | Hom. or het. | Hem. | − |
| Z-specific markers | |||||
| Pattern | + | + | Ø | + | + |
| Coveragea | 0.5 | 1.0 | − | 0.5 | 1.0 |
| Polymorphism | Hem. | Hom. or het. | − | Hem. | Hom. or het. |
Abbreviations: ESP, Espolla; hem., hemizygous; het., heterozygous; hom., homozygous; KOE, Königswartha; RAD, restriction site-associated DNA; SNP, single-nucleotide polymorphism.
For RAD markers with completely sex-linked alleles, SNP segregation patterns are shown. For RAD markers specific to either the Z or W, sex chromosome predicted patterns are shown for presence (+)/absence (Ø), marker coverage and zygosity (hem., hom. or het.).
a
Coverage relative to autosomal markers found in all individuals in both populations.