Table 1 Parental sugar beet germplasm

2×

Double Haploid (AA)

Homozygous

2× DH (AA)

−

Double Haploid (BB)

Homozygous

2× DH (BB)

CMS line ‘Tester 1’ (EE)

Heterozygous

2× hybrid (‘Tester 1’) (EE)

CMS line ‘Tester 2’ (FF)

Heterozygous

2× hybrid (‘Tester 2’) (FF)

CMS line ‘Tester 3’ (GG)

Heterozygous

2× hybrid (‘Tester 2’) (GG)

4×

Tetraploid (AAAA)

Homozygous

4× (AAAA)

−

Tetraploid (BBBB)

Homozygous

4× (BBBB)

Tetraploid (CCCC)

Heterozygous

4× hybrid (CCCC)

Tetraploid (DDDD)

Heterozygous

4× hybrid (DDDD)