1 材料与方法
1.1 材料
1.2 方法
表1 wlwp7基因定位的主要引物信息Tab. 1 Main primer information of wlwp7 gene mapping |
| 标记 Maker | 正向引物(5°-3°) Forward primers (5°-3°) | 反向引物(5°-3°) Reverse primers (5°-3°) | 起始物理位置 Initial location | 结束物理位置 End location |
|---|---|---|---|---|
| CHR305 | GCCAAAAAGTCTTAGAAGTAAATAGG | ACATGATACTATGCGTAATGGTGTT | 24994085 | 24994282 |
| ZM3-27 | TGGGCTATTATTGGGCTTTG | CGTGGGATAAAACCACCAAG | 28371057 | 28371222 |
| Ind26.4 | GGATTGATATTACGTTTAGTCA | AGATGTCATATCGGTTGTCT | 26358053 | 26358181 |
| Ind27.4 | TTTCGGGACGGAGGGAGT | AGTAGCCTGCGTTTATGC | 27497872 | 27408035 |
| Ind7 | CCCAGCGAGCATAAATAG | AGTTCGATCAACCTATGCAA | 25113092 | 25113274 |
| Ind8 | TTGTAGTAAACTGTGGGATGT | CATTACCCGACTTTTAGAAA | 25493396 | 25493483 |
| Ind8-2 | GCAATTTGGATGACGAGGC | GGGCTCAACGTTTGCACAA | 25562552 | 25562679 |
| Ind8-3 | CTGACGCAGCTCCAAGATC | ACGCTACCATCATGCACCT | 25775378 | 25775501 |
| Ind9 | CTAACTACGACACCAAAT | AGATACAGAGGGAGCGAA | 25878141 | 25878339 |
注:物理位置参考‘日本晴’基因组 | |
Note: Physical location based on ‘Nipponbare’ genome sequence |
1.3 数据分析
2 结果与分析
2.1 wlwp7的表型观察
图1 wlwp7与野生型T98B的表型比较A:不同温度下苗期叶色表型;B:成熟期植株形态;C:穗色表型;D:颖壳色泽表型,1DAF、3DAF、5DAF分别为抽穗后第1、3、5天的颖花);E:成熟种子的种壳色泽表型。 Fig. 1 Comparison of phenotypes between wlwp7 and wild-type T98B A: Phenotype on leaf color for the seedling plants at different temperatures; B: Plant architecture of the mature plants; C: Phenotype on panicle color; D: Phenotype on hull color, 1DAF, 3DAF and 5DAF refer to the samples collected at the 1st, 3rd and 5th day after flowering, respectively; E: Phenotype on hull color for the matured seeds. |
2.2 wlwp7的色素含量分析
2.3 wlwp7的遗传分析
表2 wlwp7的遗传分析Tab. 2 Genetic analysis of wlwp7 |
| 群体 Population | 世代 Generation | 群体数量 Plants number | 白叶白穗 white leaf and white panicle | 绿叶绿穗 Green leaf and green panicle | 绿叶白穗 Green leaf and white panicle | 白叶绿穗 White leaf and green panicle | 实际分离比 Separation ratio | χ2值 (χ20.05≤3.84)Chi-square test |
|---|---|---|---|---|---|---|---|---|
| wlwp7/T98B | F1 | 78 | 0 | 78 | 0 | 0 | ||
| T98B/wlwp7 | F1 | 72 | 0 | 72 | 0 | 0 | ||
| wlwp7/T98B | F2 | 488 | 128 | 360 | 0 | 0 | 1:2.81:0:0 | 0.393 |
| T98B/wlwp7 | F2 | 338 | 87 | 251 | 0 | 0 | 1:2.89:0:0 | 0.099 |
2.4 wlwp7的基因定位
2.5 wlwp7的农艺性状分析
表3 突变体wlwp7和T98B植株的农艺性状比较Tab. 3 Agronomic traits of wlwp7 mutant and T98B |
| 材料 Material | 株高 Plant height /cm | 穗长 Plant height /cm | 每穴有效穗数 No. of effective tillers per plant | 每穗粒数 No. of grains per panicle | 结实率 Seed-setting rate/% | 粒长 Grain length /mm | 粒宽 Grain width /mm | 千粒重 1000-grain weight/g |
|---|---|---|---|---|---|---|---|---|
| wlwp7 | 92.00±1.73 | 24.02±0.59 | 15.60±1.82 | 120.82±11.5 | 73±3** | 9.08±0.06 | 2.03±0.02 | 20.36±0.38 |
| T98B | 92.80±2.59 | 24.74±1.29 | 15.40±1.14 | 129.42±14.47 | 80±1 | 9.01±0.05 | 2.06±0.02 | 20.43±0.59 |
注:**表示突变体与野生型间在0.01水平差异极显著。 | |
Note: ** indicate extremely significant difference at 0.01 level between wlwp7 and WT. |
