Table 1.

BXD place preference scores correlate inversely to the number of striatal cholinergic neurons.

GeneNetwork ID	Phenotype	Authors	Spearma's rho	n Strains	p(rho)
10106	Central nervous system, morphology: Striatum cholinergic neurons, section 11 [n neurons/section]	Dains K, Hitzemann B, and Hitzemann R (1996)	−0.73567382	18	0.000268002
10107	Central nervous system, morphology: Striatum cholinergic neurons, section 14 [n neurons/section]		−0.54437564	18	0.018084298
10110	Central nervous system, morphology: Striatum cholinergic neurons, section 22 [n neurons/section]		−0.64171408	18	0.003201896

Within multiple sections of the striatum, the number of cholinergic neurons (Dains et al. 1996) is significantly inversely correlated with nicotine place preference scores of BXD mice on day 5 of the CPP paradigm. All genetic correlations are Spearman correlations performed using GeneNetwork (GN ID = GeneNetwork Record ID, n = number of BXD strains used for correlations).