Table 1.

Quantification of Seed Set in Plants with Different PKSA and PKSB Allelic Combinations

No. of Siliques Containing the Given Numbers of Seeds
Genotypea>71b70–6160–5150–4140–3130–2120–1110–10
AABB6.09.00000000
AAbb4.38.32.3000000
Aabb3.710.31.0000000
AaBb5.39.70000000
aaBB1.010.04.0000000
aaBb00000.70.72.710.01.0
aabb0000000015.0
  • a At1g02050 (PKSA) alleles are symbolized by A (WT) and a (pksa-1), and At4g34850 (PKSB) alleles are symbolized by B (WT) and b (pksb-3).

  • b Values represent the average number of siliques on one branch from the indicated genotype that contain seeds numbering within the given range. Genotype AABB (wild type) contained at least 61 seeds in each silique. On the other hand, genotype aabb (double mutant pksa-1 pksb-3) had no seeds in any siliques. Genotype aaBb showed clearly reduced fertility with most siliques having 10 or fewer seeds.