A dense SNP genetic map constructed using restriction site-associated DNA sequencing enables detection of QTLs controlling apple fruit quality

Table 3 Features of genetic linkage maps

Chromosome	Jonathan		Golden Delicious		Consensus
/linkage group	No. of makers	Length(cM)	No. of makers	Length(cM)	No. of makers	Length(cM)
1	70	82.0	97	75.4	159	86.5
2	156	48.9	96	41.5	189	88.1
3	129	74.0	177	99.2	242	103.8
4	145	49.1	66	78.3	180	85.4
5	186	84.2	116	121.7	276	121.3
6	178	95.4	206	43.9	334	59.6
7	152	89.7	95	81.1	240	92.1
8	63	76.0	191	96.2	234	96.6
9	129	82.4	141	93.3	220	102.9
10	123	81.6	88	111.9	198	109.0
11	50	74.8	105	127.2	139	130.3
12	93	88.1	127	86.1	190	98.6
13	73	79.3	121	98.0	174	98.2
14	66	69.0	86	100.5	145	97.8
15	123	93.7	72	116.0	166	129.3
16	219	101.5	77	48.4	234	52.4
17	62	73.8	71	97.2	121	98.2
Total	2017	1343.4	1932	1516.0	3441	1650.2
Density (cM / maker)		0.67		0.78		0.48

The new maps were constructed using 3441 SNPs and 297 hybrid seedlings derived from ‘Jonathan’ × ‘Golden Delicious’. Marker amount and total length of each linkage group of parental and consensus maps were showed

ISSN: 1471-2164