Table 1. Number of molecular markers, genetic distance, marker density in each linkage group of the Brassica napus TNDH 2041-map.

Linkage Group	Number of molecular Markers	Genetic Distance (cM)	Marker density (markers/cM)	SNP bin	SNP bin density (markers/cM)	Original markers
A1	142	89.4	1.63	132	1.48	10
A2	107	120.6	0.91	91	0.75	16
A3	158	131.8	1.44	121	0.92	37
A4	105	82.0	1.31	91	1.11	14
A5	105	112.7	0.83	94	0.83	11
A6	141	128.8	1.15	120	0.93	21
A7	131	104.9	1.30	108	1.03	23
A8	81	83.8	0.98	67	0.80	14
A9	153	139.7	1.10	102	0.73	51
A10	104	75.9	1.37	85	1.12	19
C1	97	92.6	1.06	90	0.97	7
C2	85	74.4	0.85	78	1.05	7
C3	127	142.4	0.84	104	0.73	23
C4	95	116.2	0.80	79	0.68	16
C5	62	133.4	0.47	52	0.39	10
C6	78	106.2	0.73	59	0.56	19
C7	83	93.5	0.76	67	0.72	16
C8	107	108.1	0.91	98	0.91	9
C9	80	141.4	0.57	60	0.42	20
A genome	1227	1069.6	1.18	1011	0.95	216
C genome	814	1008.3	0.76	687	0.68	127
Total(A + C)	2041	2077.9	0.97	1698	0.82	343

SNP bin, the smallest unit where chromosome recombination events happen. Original markers, SSR, RFLP and AFLP markers.