Skip to main content

Advertisement

Table 1 Pattern and extent of transgenerational, non-additive gene expression in each of the synthetic allohexaploid lines

From: Global transgenerational gene expression dynamics in two newly synthesized allohexaploid wheat (Triticum aestivum) lines

Synthetic line and generation Allo-AT5 Allo-AT9
  S4 S5 Aver. S4 S5 Aver.
Total no. and (%a) of nonadditively expressed genes 828 (2.8) 1,642 (5.5) 1,235 (4.2) 1,121 (3.8) 930 (3.1) 1,026 (3.5)
No. and (%b) of up-regulated genes 485 (58.6) 826 (50.3) 656 (53.1) 545 (48.6) 398 (42.8) 472 (46.0)
No. and (%b) of down-regulated genes 343 (41.4) 816 (49.7) 580 (46.9) 576 (51.4) 532 (57.2) 554 (54.0)
No. and (%b) of the total as well as up- and down-regulated non-additively expressed genes that matched the genes showing differential expression between parental species T-483 (58.3) Up- 237 (28.6) Down: 246 (29.7) T-1055 (64.3) Up- 426 (25.9) Down: 629 (38.3) T-769 (62.3) Up- 332 (26.8) Down: 438 (35.4) T-741 (66.1) Up- 316 (28.2) Down: 425 (37.9) T-613 (65.9) Up- 203 (21.8) Down: 410 (44.1) T-677 (66.0) Up- 260 (25.3) Down: 418 (40.7)
No. and (%b) of high-diploid Parental dominance genes 31 (3.7) 41 (2.5) 36 (2.9) 97 (8.7) 79 (8.5) 88 (8.6)
No. and (%b) of high-tetraploid Parental dominance genes 178 (21.5) 342 (20.8) 260 (21.1) 112 (10.0) 64 (6.9) 88 (8.6)
No. and (%b) of Low-diploid Parental dominance genes 64 (7.7) 62 (3.8) 63 (5.1) 110 (9.8) 91 (9.8) 101 (9.8)
No. and (%b) of low-tetraploid parental dominance genes 78 (9.4) 190 (11.6) 134 (10.9) 129 (11.5) 115 (12.4) 122 (11.9)
No. and (%b) of over-dominance genes 44 (5.3) 94 (5.7) 69 (5.6) 108 (9.6) 65 (7.0) 87 (8.4)
No. and (%b) of under- Dominance genes 14 (1.7) 31 (1.9) 23 (1.8) 73 (6.5) 35 (3.8) 54 (5.3)
  1. aof all expressed genes.
  2. bof non-additively expressed genes.
  3. The up- or down-regulated numbers of the nonadditively expressed genes.
  4. The nonadditively expressed genes can be divided into six categories based on their expression: F represented the synthetic allohexaploid lines; P, paternal lines; and M, maternal lines. High-paternal dominance, F = P, F > M, P > M; high-maternal dominance, F = M, F > P, M > P; low-paternal dominance, F = P, F < M, P < M; low-maternal dominance, F = M, F < P, M < P; over-dominance, F > P and F > M; under-dominance, F < P and F < M.