Table 3. Comparison of new genetic map (2012) with the previous map (Niehuis et al. 2010).

			Chromosome
	Total		1		2		3		4		5
Map version	2010	2012	2010	2012	2010	2012	2010	2012	2010	2012	2010	2012
Genetic length, cM	446.9	435.9	94.5	95.6	89.8	86.9	98.9	89.8	87.6	90.6	76.1	73
No. observed recombinations	499	597	106	131	100	119	110	123	99	124	84	100
Marker clusters	264	510	61	108	58	102	53	104	41	104	51	92
Avg distance between marker clusters, cM	1.7	0.9	1.6	0.9	1.6	0.9	1.9	0.9	2.2	0.9	1.5	0.8
No. markers	1255	15546	372	4259	207	3435	188	3084	224	1930	264	2838
Mapped scaffolds	265	476	91	154	48	105	46	91	61	97	31	53
Mapped scaffolds (oriented)	42	53	11	15	10	10	9	9	5	11	7	8
Physical length, Mb	187.6	217.7	48.3	56.5	39.5	47.3	34	38	35.8	42.3	30	33.6
Associated markers	0	3702	0	657	0	478	0	411	0	1818	0	338
Associated additional scaffolds	0	253	0	63	0	39	0	51	0	82	0	23
Associated physical length, Mb	0	15.9	0	4.0	0	2.6	0	2.4	0	5.4	0	1.5
Total scaffolds	265	729	91	217	48	144	46	142	61	179	31	76
Total physical length, Mb	187.6	232.4	48.3	60.5	39.5	49.9	34	40.4	35.8	47.7	30	35.1

Results for the complete map are shown, as well as results for individual chromosomes. Key improvements in the new map include a dramatically increased marker density and the placement of a large number of small scaffolds.