Table 3.
Genetic Analysis of the sfd1 and sfd2 Mutants
| F2 Progeny
|
|||||||||
|---|---|---|---|---|---|---|---|---|---|
| Cross | F1 Phenotype a | Large | Intermediate | Dwarf | Mendelian Ratio |
Hypothesis | χ2 | Pb | Fit?/Remarks |
|
sfd1-1 ssi2 npr1 × ssi2 npr1 |
Dwarf | 11 | 0 | 32 | 1:2.9 | Monogenic recessive | 0.05 | 0.9 > P > 0.5 | Yes |
|
sfd1-1 ssi2 npr1 × sfd1-2 ssi2 npr1 |
Large | 72 | 0 | 0 | Allelic | ||||
|
sfd1-2 ssi2 npr1 × SFD1 SSI2 NPR1 |
Large | 144 | 0 | 2 | Linked to ssi2 | ||||
|
sfd2-1 ssi2 npr1 × ssi2 npr1 |
Intermediate | 9 | 17 | 10 | 1:1.9:1.1 | Monogenic semidominant | 0.17 | P > 0.9 | Yes |
a
Plants were scored for the presence/absence of the dwarf phenotype associated with ssi2.
b
Degrees of freedom used to calculate probability: sfd1-1 ssi2 npr1 × ssi2 npr1 (df = 1); sfd2-1 ssi2 npr1 × ssi2 npr1 (df = 2).