Table 5 Simultaneous segregation at Aco-1 and the distyly locus

From: Inheritance of spontaneous mutant homostyles in Turnera subulata × krapovickasii and in autotetraploid T. scabra (Turneraceae)

(a) BRY × Mhomo-H and reciprocal (not used in recombination frequency estimates)

 

Aco-1 genotype

Morph

FF

FM

FS

MS

Short

0

0

8

2

Homostyle

0

9

0

0

Long

7

0

0

0

Total

7

9

8

2

Goodness of fit to 1:1:1:1 ratio, G3 df=5.50, P=0.14

(b) Pooled backcrosses (S16L, S4L, K12L, K21L × Mhomo-H)

 

Aco-1 genotype

  
 

FM

FF

  

Homostyle

49

0

  

Long

0

100

  

Total

49

100

  

Goodness of fit to 1:1 ratio, G1 df=17.8, P<0.001

Gheterogeneity, 3 df=0.74, P=0.86

r=0.007±0.007

 

(c) Krp12LMhom-4 H selfed and Mhomo-H selfed pooled

 

Aco-1 genotype

 
 

FF

FM

MM

 

Homostyle

3

38

22

 

Long

9

3

0

 

Total

12

41

22

 

Goodness of fit to 1:2:1 ratio, G2=3.64, P=0.16

Gheterogeneity, 2 df=5.15, P=0.08

r=0.096+0.035

(d) S16L × Mhbry-9S

 

Aco-1 genotype

  
 

FM

FS

  

Short

5

128

  

Homostyle

35

1

  

Total

40

129

  

Goodness of fit to 1:1 ratio, G1 df=49.3, P<0.001

r=0.0355+0.014

Joint recombination frequency, r=0.031±0.009, χ2 heterogeneity, 3 df=11.9, P=0.008

  1. F, M and S are three alleles segregating at the Aco-1 locus. Goodness of fit tests to expected ratios at the Aco-1 locus are provided. Where crosses were pooled, a heterogeneity test is provided. Maximum likelihood estimates of the recombination frequency, r±SE are provided. Where no recombinants were observed, r was estimated upon the assumption that the next individual to be assayed would have been a recombinant. A joint estimate of the recombination frequency was obtained following Allard (1956).