Table 2.

Number and Distribution by Ratio of Genes with Significant Differential Expression during Early Endosperm Formationa

Expression 3 DAPClass of RatiosbNumber of Genes
DownregulatedRepressed4
0.00–0.054
0.50–0.679
0.67–0.8326
Upregulated1.25–1.5017
1.50–2.016
2.0–3.205
Induced30
  • a The table summarizes the data obtained by comparing RNA profiles in the ovules of the apomictic phenotype 38C at 0 DAP (presence of an arrested proembryo but before the initiation of endosperm formation) and 3 DAP (presence of growing endosperm and an arrested proembryo).

  • b Ratio = 1, no variation in gene expression; ratio > 1, upregulation in the endosperm after fertilization; ratio < 1, downregulation in the endosperm after fertilization.