Soybean Genomics: Developments through the Use of Cultivar “Forrest”

Table 1

Description of 20 linkage groups mapped in the Essex × Forrest mapping population. The map distances and markers distribution for the linkage groups were generated from analysis of the 100 F₅-derived progeny from E × F.

		Map	No. of markers
Linkage group	NIL^(a) populations	Distance (cM)	Total	SSR	RFLP	RAPD	BESs^(b)	EST^(b)	BESs^(c) SSR
A1	6	73.8	14	4	3	7	458	13	4
A2	8	259.0	22	10	8	4	757	0	7
B1	4	164.0	16	11	2	3	234	7	5
B2	5	53.4	12	7	1	4	156	3	6
C1	4	150.1	13	10	0	3	136	0	9
C2	8	213.2	30	19	4	7	565	14	4
D1a + Q	9	140.0	17	14	0	3	625	30	3
D1b+W	8	87.4	14	8	1	5	124	1	3
D2	7	245.4	19	15	0	4	122	0	4
E	6	97.4	9	6	0	3	362	11	5
F	4	219.9	29	16	5	8	369	0	2
G	12	242.5	37	19	12	6	1126	33	5
H	8	98.3	9	6	1	2	427	9	4
I	9	116.9	16	11	0	5	192	6	3
J	7	40.7	7	3	1	3	577	3	2
K	9	150.9	18	13	0	5	590	1	4
L	8	103.8	12	9	0	3	91	3	2
M	6	105.2	10	6	1	3	87	9	4
N	3	145.1	21	9	2	10	156	0	3
O	2	116.4	13	10	0	3	566	9	0
Total	100	2823.4	337	206	41	90	7720	152	79
Unlinked	(2007)	0	0	0	0	0	10529	485	10

^(a)NIL populations segregate for 2 or more regions on different chromosomes.
^(b)ESTs and BESs may appear at 2 or more locations on the linkage map if they appear in homoeologous regions of different linkage groups.
^(c)BESs-SSR placedon the genetic map, many more are placed in SoyGD by inference from marker anchored contigs.