Mapping QTLs for water-use efficiency reveals the potential candidate genes involved in regulating the trait in apple under drought stress

Table 3 Profile of parental and integrated maps. (HC, ‘Honeycrisp’; QG, ‘Qinguan’)

Linkage group	HC map			QG map			Integrated map
Linkage group	Number of markers	Genetic distance (cM)	Average distance between markers (cM)	Number of markers	Genetic distance (cM)	Average distance between markers (cM)	Number of markers	Genetic distance (cM)	Average distance between markers (cM)
1	256	136.63	0.53	260	118.66	0.46	503	162.27	0.32
2	268	91.85	0.34	296	119.23	0.40	540	168.33	0.31
3	261	112.98	0.43	320	109.90	0.34	521	154.49	0.30
4	270	110.32	0.41	324	93.87	0.29	560	133.28	0.24
5	366	65.44	0.18	413	109.02	0.26	731	121.69	0.17
6	497	75.55	0.15	205	97.34	0.47	661	117.63	0.18
7	292	140.87	0.48	430	93.26	0.22	638	160.34	0.25
8	367	83.40	0.23	174	114.18	0.66	496	124.67	0.25
9	318	80.07	0.25	322	97.55	0.30	590	115.99	0.20
10	416	94.91	0.23	162	92.27	0.57	547	128.87	0.24
11	408	102.26	0.25	321	72.32	0.23	650	120.57	0.19
12	226	111.39	0.49	228	109.44	0.48	403	147.47	0.37
13	257	159.75	0.62	819	94.41	0.12	1057	161.80	0.15
14	225	95.35	0.42	368	89.86	0.24	497	124.50	0.25
15	235	133.88	0.57	377	83.05	0.22	574	179.97	0.31
16	423	112.27	0.27	345	90.09	0.26	690	170.80	0.25
17	266	130.70	0.49	259	102.89	0.40	514	137.85	0.27
Total	5351	1837.61		5623	1687.33		10172	2430.52
Average			0.34			0.30			0.24

ISSN: 1471-2229