Table 1.

Segregation of mutant alleles in the F₁ generation of a self-cross of the Atrgtb1+/–Atrgtb2–/– mutant Atrgtb1+/–Atrgtb2–/– plants were self-crossed. Analysis of the genotypes in the F₁ generation was performed by binomial exact test against the H₀ hypothesis that one in four of the progeny carries a double mutation in RGTB genes.

Cross	n	Expected fraction of rgtb1–/–rgtb2-/-	Expected number of rgtb1–/– rgtb2-/-	Observed number of rgtb1–/–rgtb2–/–	P-value
rgtb1-1+/–rgtb2-2-/–×rgtb1-1+/–rgtb2-2–/–	82	1/4	20.5	0	5ʹ68884e-11***
rgtb1-2+/–rgtb2-1–/–×rgtb1-2+/–rgtb2-1–/–	128	1/4	32	0	1.01822e-16***

n, number of plants analysed.

***P-value <0.001.