Table 1.

Description of the Maps Used for Analysis

Map Type and Source	Data	No. of Markersa	Map Resolution (kb)b	Reference
GL:
CHLC	CEPH	16	1,732	Murray et al. 1994
Généthon	CEPH	56	563	Dib et al. 1996
Marshfield	CEPH	85	384	Broman et al. 1998
RH:
GM99-G3	G3	88	340	Deloukas et al. 1998
SHGC	G3	105	301	Stewart et al. 1997
GM99-GB4	GB4	158	227	Deloukas et al. 1998
WI	GB4	166	211	Hudson et al. 1995
Integrated:
LDB	Mixed	613	58	Collins et al. 1996
UDB	Mixed	605	58	Chalifa-Caspi et al. 1998

^aNo. of markers for which sequence positions were identified using e-PCR.

^bPhysical length of the map divided by no. of map intervals (no. of markers − 1).