Table 3 Differences in homoeolog expression bias between the allotetraploid (F18) and gynogenetic allodiploid (G4) hybrids.

From: Analyzing homoeolog expression provides insights into the rediploidization event in gynogenetic hybrids of Carassius auratus red var. × Cyprinus carpio

Comparison

Expression in F18

Expression in G4

No. of genes

No. of growth genes

F18 = G4

R = C (no-HEB)

R = C Parental condition

2,070 (58.47%)

20 (58.82%)

R > C (R-HEB)

R > C Parental condition

490 (13.84%)

4 (11.76%)

R < C (C-HEB)

R < C Parental condition

149 (4.21%)

0

F18 ≠ G4

R > C (R-HEB)

R = C No bias in progeny

283 (7.99%)

5 (14.71%)

R < C (C-HEB)

R = C No bias in progeny

137 (3.87%)

2 (5.88%)

R = C (no-HEB)

R > C Novel bias in progeny

260 (7.34%)

2 (5.88%)

R = C (no-HEB)

R < C Novel bias in progeny

143 (4.04%)

1 (2.94%)

R < C (C-HEB)

R > C Novel bias in progeny

6 (0.17%)

0

R > C (R-HEB)

R < C Novel bias in progeny

3 (0.08%)

0

 

Total number of genes

 

3,540

34

Overall R-biased in progenya

 

639 (18.52%)

5 (14.71%)

Overall C-biased in progenya

 

412 (11.94%)

2 (5.88%)

Potential R-biased in progenyb

 

1629 (47.22%)

17 (50.00%)

Potential C-biased in progenyb

 

860 (24.93%)

10 (29.41%)

  1. R = C denotes equal expression; R > C and R < C denote R-biased and C-biased expression, respectively.
  2. aBased on the significance differential homoeolog expression comparison of R and C homoeologues (P < 0.05 in comparisons; Fisher’s exact test).
  3. bthe ratio of R and C homoeologs greater than 1 was considered as potential R-biased in hybrids. Conversely, it represent as potential C-biased.