Identification and characterization of QTLs for fruit quality traits in peach through a multi-family approach

BMC Genomics

Table 2 QTL name, linkage group, interval, mode peak, posterior intensity, additive effect, dominant effect, and phenotypic variance explained (PVE) for the blush, soluble solids concentration (SSC), and titratable acidity (TA) traits evaluated in four environments (CA11, CA12, TX12, TX13), and the overall combined mean for 143 peach seedlings

*QTL name*	*Linkage Group*	*Interval (cM)*	*Mode peak (cM)*	*Posterior intensity*	*Additive Effect*	*Dominant* *Effect*	*PVE* *(%)*
qBlush4-CA12	4	[42, 46]	44	0.92	0.63	–	32
qBlush4-TX12	4	[42, 46]	44	0.24	0.62	–	31
qBlush4-TX13	4	[40, 46]	42	0.43	0.57	–	20
qBlush4-mean	4	[42, 46]	44	0.85	0.53	–	30
qSSC5-CA11	5	[58, 72]	66	0.27	1.31	–	17
qSSC5-CA12	5	[60, 72]	66	0.90	1.27	–	22
qSSC5-TX13	5	[58, 72]	60	0.91	2.32	–	38
qSSC5-mean	5	[58, 72]	66	0.91	1.42	–	39
qTA5a-CA11	5	[2, 8]	6	0.64	0.33	−0.10	35
qTA5a-CA12	5	[2, 8]	6	1.59	0.47	−0.02	74
qTA5b-CA12	5	[58, 72]	66	0.68	0.26	−0.10	22
qTA5-TX12	5	[2, 8]	4	0.66	0.32	–	72
qTA5a-mean	5	[4, 8]	6	0.90	0.49	−0.04	80
qTA5b-mean	5	[58, 72]	60	0.70	0.25	−0.13	14

Blush = blush visually based on % coverage of red blush on skin using 0–5 scale (0 = 0% red coverage, 1 = 1–20%, 2 = 21–50%, 3 = 51–80%, 4 = 81–99%, 5 = 100%); SSC = soluble solids concentration in °Brix; TA = titratable acidity %
CA11 = Fowler, California 2011, CA12 = Fowler, California 2012, TX12 = College Station, Texas 2012, TX13 = College Station, Texas 2013
Posterior intensity is the accumulated probability of QTL presence in a successive series of 2 cM bins (chromosome segments) based on Bayesian analysis
For each QTL reported, the evidence [2ln(BF)] is either positive (2–5), strong (5–10) or decisive (> 10)

ISSN: 1471-2164