QTLs and candidate genes for desiccation and abscisic acid content in maize kernels

BMC Plant Biology

Table 1 Characteristics of the parental lines and their offspring for desiccation rate and ABA content

Trait	LHRF_F_3:4 mean ± SD	LHRF_F_3:4 min-max	F2 mean ± SD	F252 mean ± SD
FW30	188 ± 33	123-395	183 ± 14	180 ± 20
FW40	247 ± 36	156-351	260 ± 17	249 ± 19
FW60	316 ± 44	217-445	332 ± 36	319 ± 13
FW80	306 ± 50	189-450	314 ± 38	295 ± 33
DW30	55 ± 9	34-87	52 ± 7	55 ± 4
DW40	103 ± 14	67-146	111 ± 7	108 ± 9
DW60	183 ± 24	122-259	190 ± 20	190 ± 9
DW80	208 ± 30	138-288	206 ± 25	220 ± 18
%DW30	30 ± 4	17-39	29 ± 2	31 ± 1
%DW40	42 ± 3	32-49	43 ± 2	43 ± 1
%DW60	58 ± 3	46-66	57 ± 2	60 ± 1
%DW80	68 ± 4	58-78	66 ± 2	74 ± 3
Water30	133 ± 28	87-308	131 ± 8	124 ± 16
Water40	143 ± 25	85-222	149 ± 13	142 ± 10
Water60	132 ± 23	82-193	142 ± 19	128 ± 5
Water80	98 ± 24	43-165	108 ± 16	75 ± 16
ABAend30	87 ± 25	41-200	93 ± 8	114 ± 19
ABAend40	67 ± 14	38-121	72 ± 33	76 ± 5
ABAend60	47 ± 14	17-92	75 ± 27	85 ± 15
ABAend80	8 ± 4	2-21	79 ± 28	31
ABAemb30	278 ± 175	42-1004	273	212 ± 3
ABAemb40	352 ± 106	158-714	489 ± 56	408 ± 44
ABAemb60	630 ± 184	290-1356	619 ± 152	380 ± 0.2
ABAemb80	505 ± 178	115-1091	544 ± 105	350 ± 60
Slope	-0.083 ± 0.006	-0.100-0.070	-0.071	-0.085
Rate30_80	0.082 ± 0.006	0.060-0.096	0.074	0.086
Rate30_40	0.124 ± 0.045	0.020-0.240	0.142	0.119
Rate40_60	0.082 ± 0.020	0.010-0.130	0.072	0.084
Rate60_80	0.050 ± 0.018	0.010-0.110	0.042	0.073

The LHRF_F_3:4segregating population derived from the cross between the F2 and the F252 parental inbred lines differing in desiccation rate. FW: kernel fresh matter weight (mg/kernel); DW: kernel dry matter weight (mg/kernel); %DW = DW/FW× 100; Water: kernel water content (mg/kernel); ABAend: ABA in endosperm (pg/DW); ABAemb: ABA in embryo (pg/DW); Slope: regression line slope of (Water/FW × 100) as a function of thermal time; Rate = (Water/FW × 100)/(thermal time interval).

ISSN: 1471-2229