1 材料与方法
1.1 材料
1.2 ‘W115’矮牵牛的遗传转化
1.3 ‘Micro-Tom’番茄的遗传转化
1.4 花色苷含量测定
1.5 RNA的提取与cDNA合成
1.6 荧光定量PCR
表1 荧光定量PCR所用引物Tab. 1 Primers used for real-time PCR |
| 基因名称 Gene name | 上游引物(5°-3°) Forward primer (5°-3°) | 下游引物(5°-3°) Reverse primer (5°-3°) |
|---|---|---|
| LcMYB1 | ACAGCAGAGACCATTTAGGG | TGATGTTTGTCCAAGCAGTTC |
| PhCHS | GTGGTTGAAGTGCCCAAACT | AGCCTCTTGACCGATGGAC |
| PhDFR | TCATTTGCTCGTCCCACCATGC | TGGCCATTTCTCTCGGACCATC |
| PhAN1 | TAGAGCCAATCAGACGGAGGCTAC | CCCTTCCTTGCAACACCTTCAC |
| SlDFR | CAAGGCAGAGGGAAGATTCATTTG | GCACCATCTTAGCCACATCGTA |
| SlAN1 | CCTCTCTTGGACGGTGTTGT | GCTTGTTGTGGCTCATTGAA |
| SlJAF13 | TCAGGGGATCACTACCGAAC | TCCCATCAAGGTTGGAAGAC |
| Sl18SrRNA | GCGACGCATCATTCAAATTTC | TCCGGAATCGAACCCTAATTC |
| PhEF1Α | CCTGGTCAAATTGGAAACGG | CAGATCGCCTGTCAATCTTGG |
2 结果与分析
2.1 转LcMYB1基因矮牵牛表型观测
图2 LcMYB1超表达矮牵牛叶片和花瓣表型及花色苷含量A和C分别为对照‘W115’的幼苗和花瓣;B和D分别为转LcMYB1矮牵牛的幼苗和花瓣;E为转基因Line 2株系和对照‘W115’的叶片和花瓣花色苷含量;**表示对照‘W115’和转基因Line 2株系间差异极显著(P<0.01)。 Fig. 2 Phenotype of and anthocyanin content in transgenic petunia A and C are seedling and petal of ‘W115’; B and D are seedling and petal of transgenic petunia; E is anthocyanin contents in leaf and flower of transgenic petunia and control; ** indicates extremely significant difference between transgenic petunia and control (P<0.01). |
2.2 转LcMYB1基因矮牵牛花色苷生物合成相关基因的表达
图3 LcMYB1超表达矮牵牛叶片和花瓣中LcMYB1、PhCHS、PhDFR和PhAN1基因的表达水平**表示对照‘W115’和转基因Line 2、Line 3株系间差异极显著(P<0.01)。 Fig. 3 Expression levels of LcMYB1, PhCHS, PhDFR and PhAN1 in transgenic petunia leaf and flower ** indicates extremely significant difference between transgenic petunia and control (P<0.01). |
2.3 转LcMYB1基因番茄表型观察
图4 LcMYB1超表达番茄叶片和花表型和花色苷含量A和C分别为对照‘Micro-Tom’的幼苗和花;B和D为分别为转LcMYB1番茄的叶片和花;E为转基因植株和对照‘Micro-Tom’不同组织的花色苷含量;**表示对照‘Micro-Tom’和转基因Line 5株系间差异极显著(P<0.01)。 Fig. 4 Phenotype of and anthocyanin contents in transgenic tomato and control A and C are seedling and flower of ‘Micro-Tom’; B and D are seedling and flower of transgenic tomato; E is anthocyanin contents in different tissue of transgenic tomato and control; ** indicates extremely significant differences between transgenic tomato and control (P<0.01). |
2.4 转LcMYB1基因番茄花色苷生物合成相关基因的表达
图5 LcMYB1超表达番茄叶片、果实和花瓣中LcMYB1、SlDFR、SlAN1和SlJAF13基因的表达水平**表示对照‘Micro-Tom’和转基因Line 5株系间差异极显著(P<0.01)。 Fig. 5 Expression levels of LcMYB1, SlDFR, SlAN1 and SlJAF13 in transgenic tomato leaf, fruit and flower ** indicates extremely significant difference between transgenic tomato and control (P<0.01). |
