TABLE 5.

Effect of chromosome dosage on opposite phenotypes

Phenotype	Effecta on the incidence of:	Chromosome 1	Chromosome 2	Chromosome 3	Chromosome 4	Chromosome 5	No. of plants
Leaf width	Both	0.354	0.00016	0.089	0.583	0.00034	Wild type	38
	Narrow	0.151	0.63718	0.818	0.169	0.0061+	Narrow	7
	Wide	0.868	0.000030+	0.025	0.546	0.08498	Wide	12
Apical dominance	Both	0.094	0.776	0.013	0.035	0.050	Wild type	47
	Weak	0.0068+	0.468	0.118	0.576	0.764	Weak	4
	Strong	0.810	0.328	0.081	0.033	0.031	Strong	6
Color	Both	0.00033	0.898	0.012	0.724	0.384	Wild type	34
	Dark green	0.00055+	0.635	0.647	0.552	0.231	Dark	9
	Light green	0.29353	0.800	0.012	0.341	0.926	Light	14

^aFor each chromosome type, the correlation between phenotype and rChrX was calculated. Regressions were considered significant when P-values were <0.01 (in boldface type) to control for independent testing on five chromosome types. “+”indicates a positive correlation. When testing the effect of chromosome dosage on one of the two opposite phenotypes, individuals exhibiting that phenotype were compared to the wild-type group, and individuals exhibiting the opposite phenotype were excluded from the analysis.