TABLE 2

Effect of genetic background on pupal heart rate of 15 deficiency chromosomes

Chromosome	N_b^a	N_i^b	wt/Bal	wt/Df	Diff^c	P(B)^d	P(G)^e	P(B × G)^f
Df(2L)TW84	6	120	-0.004	-0.345	-0.341	0.0012	<0.0001	0.9239
Df(2R)stan2	6	119	0.013	-0.184	-0.197	<0.0001	0.0008	0.0978
Df(2L)esc^P2-0	6	119	0.092	0.298	0.206	0.0002	<0.0001	0.0048
Df(2L)N22¹⁴	6	106	-0.003	-0.133	-0.130	0.0310	0.0049	0.0162
Df(1)C149	6	106	0.077	-0.092	-0.169^*	<0.0001	0.0033	0.5125
Df(1)N19	6	96	0.029	0.052	0.023	<0.0001	0.7172	0.8184
Df(3L)st7	5	93	-0.090	-0.301	-0.211	0.0002	0.0009	0.2807
Df(3L)29A6	5	90	-0.194	-0.028	0.166^*	<0.0001	0.0047	0.1793
Df(2L)cl-h3	5	83	0.273	0.578	0.305	<0.0001	0.0002	0.0666
Df(1)C128	4	84	0.109	0.007	-0.102	0.0002	0.1217	0.0178
Df(3R)Cha7	4	79	-0.260	-0.205	0.055	0.0009	0.4323	0.1751
Df(3R)Dr^rv1	4	79	0.034	0.300	0.266	<0.0001	<0.0001	0.0020
Df(3L)GN24	4	75	-0.218	-0.262	-0.044	<0.0001	0.4707	0.1298
Df(2R)H3E1	4	70	0.340	0.416	0.076	<0.0001	0.3688	0.8125
Df(3R)crb^87-5	4	62	0.042	0.147	0.105	0.1046	0.2136	0.0999

↵^a Number of backgrounds tested.
↵^b Number of individuals scored.
↵^c Difference between mean residual of wild-type/Balancer and wild-type/Deficiency genotypes (^* indicates effect in direction opposite to that predicted from original observation of Bloomington stock).
↵^d P value associated with F-ratio for effect of genetic backgrounds.
↵^e P value associated with F-ratio for effect of genotype (wt or Df chromosome).
↵^f P value associated with F-ratio for genotype by background interaction effect.