Table 2.

Relationship of Genotype to Susceptibility at Linked Markers

Marker		Position		4th quartile						3rd quartile						2nd quartile						1st quartile
				c/c		b/b		b/c		c/c		b/b		b/c		c/c		b/b		b/c		c/c		b/b		b/c
		cM
D17Mit11		11		54		13		37		18		29		58		15		27		50		17		37		50
D17Mit115		19		52		13		39		19		28		60		19		23		49		16		39		49
D17Mit66		25		55		17		39		25		29		59		25		28		55		18		40		53
D9Mit67		17		46		20		46		26		34		51		31		25		54		21		28		65
D9Mit71		29		44		22		44		26		31		54		29		19		66		21		27		61
D9Mit133		43		31		32		49		26		40		44		32		24		54		19		40		51

Genotypes of F2 mice split into quartiles based on decreasing susceptibility score. Genotype b/b represents a mouse homozygous for C57BL/6 alleles, c/c homozygous for BALB/c, and b/c heterozygotes.