Table 3 Crosses used for segregation analyses indicating genotypes at the Aly 13 (SRK) locus (in parentheses) and results of goodness of fit tests to a tetrasomic model of inheritance

From: Inheritance and dominance of self-incompatibility alleles in polyploid Arabidopsis lyrata

Family a

Maternal plant (Genotype) b

Paternal plant (Genotype)

Nc

Model fit d

2: C7

J2000 1/8 (1/1/28/33)

J2000 4/2 (1/1/29/30)

5

NT

2: D1

J2000 4/2 (1/1/29/30)

J2000 1/8 (1/1/28/33)

41

0.10

3: E1

C7/7 (1/1/30/33)

C7/3 (1/1/1/29)

27

0.003e

3: E2

C7/3 (1/1/1/29)

C7/7 (1/1/30/33)

20

0.46

3: E3

C7/3 (1/1/30/33)

C7/4 (1/1/1/28)

22

0.47

3: E5

C7/3 (1/1/30/33)

C7/2 (1/1/28/29)

30

0.12

  1. aGeneration: family designation; bold indicates families where pollination-based assessment of SI phenotype was performed; too few individuals survived to test segregation in family C7 but crosses within this family were used to produce the E families.
  2. bDosage of alleles inferred for parental genotypes was based on segregation in progeny; except for C7/3, it is possible that some individuals had an unidentified allele that was recessive to all others rather than multiple copies of 13–1 which would alter interpretation of dosage effects but not dominance relationships among other alleles.
  3. cNumber of individuals in family.
  4. dProbability of fit to a tetrasomic model of inheritance using a χ2 goodness of fit test; NT=not tested due to small sample size.
  5. eSignificant deviation from a tetrasomic model in family E1 was not seen in the reciprocal cross involving the same parents (E2).
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