Skip to main content

Table 1 Summary of homologous and homoeologous chromosome pairing in the Brassica A and C genomes of a near allo-hexaploid hybrid from assessment of recombination breakpoints in 71 microspore-derived progeny

From: Microspore culture reveals complex meiotic behaviour in a trigenomic Brassica hybrid

 

A1

A2 a

A3

A4

A5

A6 a

A7

A8

A9 a

A10

homologous

85 %

86 %

83 %

94 %

92 %

96 %

79 % (59 % b)

99 %

89 %

96 % (76 % b)

homoeologous

13 % (C1)

14 % (C2)

8 % (C3)

0 %

4 % (C5)

3 % (C5); 1 % (C7)

17 % (C6)

0 %

1 % (C8); 6 % (C9)

0 %

otherc

3 %

0 %

8 %

5 %

4 %

0 %

5 %

1 %

4 %

4 %

 

C1

C2

C3

C4

C5

C6

C7

C8

C9

 

homologous

83 %

82 %

90 %

96 % (73 % b)

90 %

68 %

97 %

99 %

90 %

 

homoeologous

13 % (A1)

14 % (A2)

8 % (A3)

0 %

4 % (A5) 3 % (A6)

17 % (A7)

1 % (A6)

1 % (A9)

6 % (A9)

 

otherc

4 %

4 %

1 %

4 %

1 %

15 %

1 %

0 %

4 %

 
  1. aUnivalent inheritance assessed rather than homologous pairing
  2. bIncluding translocation region for which two copies of one parental allele were present, confounding assessment
  3. cRecombination or non-segregation events which could not be unambiguously attributed to homoeologous recombination; includes probable univalent formation for homologous pairs and possible loss of chromosome fragments resulting from translocation heterozygotes (e.g., A7/C6)