Table 1.

Inheritance of the leaf up-curling and silique downward-pointing traits in populations derived from the two parents in B. napus.

Population	UD	WT	Total	Expectation	${\mathit{\chi }}^2$
F1	30	0	30
RF1	30	0	30
F2	100	42	142	3:1	1.43
BC1	58	70	128	1:1	1.13
BC2	59	73	132	1:1	1.48
BC3	55	65	120	1:1	0.83
BC4	63	53	116	1:1	0.86
BC5	74	60	134	1:1	1.46
BC6	53	65	118	1:1	1.22
BC5F3	527	207	734	3:1	3.56
BC6F2	220	88	308	3:1	1.91

UD denotes plants with up-curling leaf and downward-pointing silique plants; WT denotes that with flatten leaves and upright siliques.