关键词:高丹草; 遗传效应; AFLP; SSR; SRAP; 杂种优势; 预测模型 Genetic Effects and Heterosis Prediction Model ofSorghum bicolor×S. sudanense Grass LU Xiao-Ping1, LIU Dan-Dan1, WANG Shu-Yan1, MI Fu-Gui2, HAN Ping-An1, L#cod#x000dc; Er-Suo1 1 Agronomy College, Inner Mongolia Agricultural University, Huhhot 010019, China
2 College of Ecology and Environmental Science, Inner Mongolia Agricultural University, Huhhot 010019, China
Fund: AbstractMolecular markers-based heterosis prediction can provide some advices forSorghum bicolor×S. sudanense breeding. The 90 cross combinations were made according to the North Carolina design II (NCII) with five sorghum sterile lines as maternal parents and 18 Sudan grass lines as paternal parents. The field trials were carried out on the farms in Hohhot and Baotou to evaluate environmental effects. The parental genetic differences were compared by yield related QTL markers. The phenotypic values of eight traits for all F1 hybrids were investigated. The values were used for selecting significant marker loci on parental lines for setting up the evaluation system of marker effect and marker value. The specific loci were used for evaluating the trait effects and hybrid marker value, and for analyzing the correlation between the marker value and heterosis. The prediction models of the eight traits for the hybrid were constructed with the stepwise regression analysis. The Jackknife sampling method was used to test the accuracy and stability of the model. The result indicated that, considering dominance and additive effect separately, eight traits showed the average correlation coefficient of 0.65 between marker value and phenotypic value. The coefficient of determination was from 0.51 to 0.88 in the eight traits. The results in two places were similar. The model could be instructive for heterosis prediction and parents selection.
Keyword:Sorghum bicolor × S. sudanense; Genetic effect; AFLP; SSR; SRAP; Heterosis; Prediction model Show Figures Show Figures
表1 与高丹草产量相关的QTL标记 Table 1 Yield related QTLs markers on sorghum-sudan grass
引物 Primer
染色体 Chromosome
QTL
参考文献 Reference
引物 Primer
染色体 Chromosome
QTL
参考文献 Reference
E41/M60
6
Fwp6
[21-23]
E45/M60
8
Ph8
[21-23]
E41/M49
4
Fwp4
[21-23]
E41/M48
2
u2a
[21-23]
me8/em9
6
Lw6
[23-24]
C12
3
Ph3.2
[25, 28]
E37/M59
3
Fwp3
[21-23]
me5/em7
1
Sd1
[23-24]
E45/M61
2
Ph2
[21-23]
E39/M51
10
Ph10
[21-23]
E36/M59
7
Ph7
[21-23]
E39/M53
1
tn1
[21-23]
E45/M60
1
sd1
[21-23]
E45/M57
2
tn2
[21-23]
E43/M49
4
sd4
[21-23]
E44/M53
3
tn3
[21-23]
B3235
5
Ph5.2
[25, 28]
E39/M51
1
fwp1a
[21-23]
E45/M60
6
sd6
[21-23]
E40/M47
4
tn4
[21-23]
E37/M52
7
sd7
[21-23]
E32/M49
3
ln3
[21-23]
E43/M49
7
ln7
[21-23]
E43/M49
8
n8
[21-23]
E40/M59
10
n10
[21-23]
D2318
2
Ph2.1
[25, 28]
E34/M53
2
u2b
[21-23]
E41/M60
6
u6
[21-23]
me9/em11
2
Ph2
[23-24]
me3/em4
3
Ln3
[23-24]
E40/M60
9
u9
[21-23]
E41/M57
10
u10
[21-23]
E41/M58
1
w1a
[21-23]
E45/M60
1
w1b
[21-23]
E41/M48
2
w2a
[21-23]
E41/M68
2
lw2b
[21-23]
E37/M59
1
el1b
[21-23]
E48/M60
4
el4
[21-23]
me9/em5
3
Hl3
[23-24]
me5/em4
1
Ll1
[23]
E39/M55
10
el10
[21-23]
E42/M60
10
lw10
[21-23]
表1 与高丹草产量相关的QTL标记 Table 1 Yield related QTLs markers on sorghum-sudan grass
表2 Table 2 表2(Table 2)
表2 供试材料的编号及来源 Table 2 Accession number and sources of experiment materials
编号 Code
名称 Accession
来源 Source
P1
11A
山西省农业科学院 SAAS
P2
13A
内蒙古农业大学农学院 ACIMAU
P3
314A
山西省农业科学院 SAAS
P4
2397A
赤峰市农业科学院高粱研究所 SICAAS
P5
赤12 A Chi 12A
赤峰市农业科学院高粱研究所 SICAAS
P6
Nhei 073
13A×白壳苏丹草后代 13A×White skull Sudan grass progeny
P7
05- P-SD
苏丹草后代 Sudan grass progeny
P8
GZ-40
314A×棕壳苏丹草后代 314A×Brown skull Sudan grass progeny
P9
黑壳苏丹草 Black Skull Sudan grass
苏丹草后代 Sudan grass progeny
P10
白壳苏丹草 White Skull Sudan grass
苏丹草后代 Sudan grass progeny
P11
GZ-186
314A×棕壳苏丹草后代 314A×Brown Skull Sudan grass progeny
P12
GZ21
314A×棕壳苏丹草后代 314A×Brown Skull Sudan grass progeny
P13
GZ-126
2397A×GZ-12
P14
GZ-92
13A×21
P15
GZ-49
13A×GZ-126
P16
GZ-142
13A×GZ-49
P17
Nhei074
2397A×白壳苏丹草 2397A×White Skull Sudan grass
P18
Nhei072
314A×白壳苏丹草后代 314A×White Skull Sudan grass progeny
P19
Nhei071
314A×白壳苏丹草后代 314A×White Skull Sudan grass progeny
P20
62
11A×GZ-92
P21
GZ-12
11A×GZ-142
P22
GZ-183
11A×GZ-12
P23
GZ-190
314A×棕壳苏丹草后代 314A×Brown Skull Sudan grass progeny
SAAS: Shanxi Academy of Agricultural Sciences; ACIMAU: Agronomy College of Inner Mongolia Agricultural University; SAAS: Shanxi Academy of Agricultural Sciences; SICAAS: Sorghum Institute of Chifeng Academy of Agricultural Sciences; SICAAS: Sorghum Institute of Chifeng Academy of Agricultural Sciences.
表2 供试材料的编号及来源 Table 2 Accession number and sources of experiment materials
表6 亲本及子代F1单株鲜重标记型值 Table 6 Marker effect values of plant fresh weight in F1 and their parents
编号 Code
P1
P2
P3
P4
P5
0.0005
0.1375
0.2945
0.4545
0.5238
P6
-0.5445
0.3370
0.2265
-1.2255
0.4825
0.3146
P7
0.0625
-0.5155
-0.0840
0.6920
-0.7930
-0.8245
P8
-0.3885
0.3886
0.2140
-1.0580
-0.5530
-0.7891
P9
0.1105
-0.8380
-0.3895
-0.7565
-0.6685
0.6932
P10
-0.3705
-0.6175
-0.1860
-1.0000
-0.8950
0.2176
P11
0.7825
-1.3495
-0.6830
-0.9410
-0.8930
-1.2953
P12
0.2805
-0.8960
0.1955
-0.8965
-1.0055
0.7321
P13
0.1055
0.1725
0.2590
0.1810
0.4500
0.1085
P14
-0.2865
-0.5630
-0.5635
-0.5155
-0.8405
-0.9354
P15
0.1915
-0.6865
0.2705
-0.7420
-0.8510
1.8897
P16
0.1365
-0.9685
0.3660
-0.9380
1.1330
0.1698
P17
0.0705
-0.4280
0.0035
-0.3505
-0.8915
0.7868
P18
0.3585
0.3615
-0.9140
-1.1180
-0.5031
-0.6191
P19
0.2135
-0.7389
-0.4815
-0.8065
-0.5692
0.7192
P20
-0.4104
-0.5973
-0.2161
-1.1230
0.9052
0.2512
P21
-1.2825
-1.2415
-0.7136
-1.0412
0.9231
-1.5651
P22
0.3201
-0.9564
0.2586
-0.9261
-1.2359
0.9520
P23
0.5158
0.2822
0.2195
0.2616
0.6523
0.4186
表中第2行数据为母本标记型值, 第2列数据为父本标记型值。 The data in the second horizontal line and the second vertical line are the maternal and the paternal marker values, respectively.
表6 亲本及子代F1单株鲜重标记型值 Table 6 Marker effect values of plant fresh weight in F1 and their parents
图1 杂种标记型值与性状表型值的相关性A代表呼和浩特的样本数据分析; B代表包头的样本数据分析。Fig. 1 Correlation between marker-type values of hybrid and their phenotypeA: data analysis came from Huhhot sample; B: data analysis came from Baotou sample.
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