Table 2. Physical, linkage and LDU map lengths for the three breeds.

Linkage			BRO		BEL		WEL
Chr	Length (Mb)	cM	LDU	LDU/cM	LDU	LDU/cM	LDU	LDU/cM
1	195.2	413.5	713.7	1.7	612.4	1.5	363.8	0.9
2	148.8	281.3	452.1	1.6	462.8	1.6	207.8	0.7
3	110.4	236.9	439.2	1.9	359.4	1.5	186.3	0.8
4	90.2	195.2	309.8	1.6	277.1	1.4	164.1	0.8
5	59.5	154.4	198.6	1.3	207.1	1.3	126.3	0.8
6	34.9	93.8	171.9	1.8	114.7	1.2	81.4	0.9
7	36.2	103.1	150.3	1.5	153.1	1.5	76.3	0.7
8	28.7	96.6	134.5	1.4	112.2	1.2	57.0	0.6
9	23.4	88.1	123.4	1.4	101.4	1.2	61.0	0.7
10	19.9	80.6	97.4	1.2	77.0	1.0	65.3	0.8
11	19.3	64.0	73.9	1.2	85.4	1.3	34.5	0.5
12	19.9	69.1	101.4	1.5	88.4	1.3	51.6	0.7
13	17.7	62.7	76.3	1.2	85.7	1.4	38.5	0.6
14	15.1	67.4	65.9	1.0	68.1	1.0	46.2	0.7
15	12.6	53.6	61.6	1.1	54.6	1.0	24.8	0.5
16	0.5	59.1	2.0	0.0	2.3	0.0	1.1	0.0
17	10.3	50.9	65.7	1.3	52.6	1.0	24.5	0.5
18	11.2	51.7	56.4	1.1	53.9	1.0	31.1	0.6
19	10.0	52.3	67.9	1.3	57.6	1.1	31.3	0.6
20	14.2	55.1	61.5	1.1	58.6	1.1	31.1	0.6
21	6.8	56.9	56.8	1.0	51.1	0.9	29.8	0.5
22	4.1	56.4	21.9	0.4	21.7	0.4	9.5	0.2
23	5.7	52.3	46.6	0.9	39.2	0.7	27.6	0.5
24	6.2	53.2	57.6	1.1	47.6	0.9	33.0	0.6
25	2.1	57.1	17.8	0.3	23.8	0.4	6.8	0.1
26	4.9	52.3	37.4	0.7	39.5	0.8	21.9	0.4
27	5.2	51.0	32.6	0.6	34.3	0.7	28.2	0.6
28	4.7	53.6	30.4	0.6	37.1	0.7	20.9	0.4
Total	917.7	2762.2	3724.6	1.3	3378.7	1.2	1881.7	0.7

Abbreviations: BEL, brown egg layers; BRO, broilers; Chr, chromosome; LDU, linkage disequilibrium unit; WEL, white egg layers.