Table 1. Effects of mutations in YUC2 and YUC6 on male transmission frequency.

Parental Genotype (Male × Female)	Progeny				total	TE	χ2
	yuc2 +/-	yuc2 +/+	yuc6 +/-	yuc6 +/+
yuc2 -/- yuc6 +/- × WT	172		84	88	172	95.50%	0.093 (p>0.05)
yuc2 +/- yuc6 -/- × WT	91	86	177		177	105.80%	0.141 (p>0.05)

Transmission efficiencies (TE) = number of progenies with T-DNA insertion/number of progenies without T-DNA insertion. Expected values were based on the prediction that if the double mutant alleles were transmitted normally, about 50% of the progeny should receive the yuc2yuc6 knockout allele from the yuc2^-/- yuc6^+/- or yuc2^-/+ yuc6^-/- parents.