| 侯珲 1,2, 周增强 2*, 王丽 2, 王生荣 1*.水杨酸诱导苹果抗轮纹病差异表达基因分析[J].植物保护,2020,46(1):118-124. |
| 水杨酸诱导苹果抗轮纹病差异表达基因分析 |
| Analysis of differentially expressed genes in different resistant varieties to apple ring rot induced by salicylic acid |
| 投稿时间：2019-01-02 修订日期：2019-04-25 |
| DOI：DOI:10.16688/j.zwbh.2019002 |
| 中文关键词: 苹果 苹果轮纹病 水杨酸 差异基因 诱导 |
| 英文关键词:apple apple ring rot salicylic acid differentially expressed gene induced |
| 基金项目:河南省基础与前沿技术研究计划(152300410233);现代农业(苹果)产业技术体系建设专项资金(CARS-28);中国农业科学院科技创新工程(CAAS-ASTIP) |
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| 中文摘要: |
| 以对苹果轮纹病抗病性不同的两个苹果品种‘北之幸’和‘礼泉短富’为材料,利用高通量测序技术对水杨酸(SA)处理后的苹果叶片cDNA文库进行差异基因表达谱分析。结果表明,经SA诱导后,抗病品种‘北之幸’的差异表达基因有257个;感病品种‘礼泉短富’的差异表达基因有150个;不同品种间得到差异表达基因828个。经GO分析,大部分差异基因参与代谢过程、应答刺激、生物学调控、免疫系统过程和抗氧化活性等。与抗性相关的功能注释主要涉及信号转导机制、防御机制和能量产生与转导等,但感病品种‘礼泉短富’没有注释到有关防御机制的差异基因。推测这些基因可能在SA诱导苹果抗轮纹病的过程中起重要作用。差异基因参与抗病相关的代谢通路涉及过氧化物酶体途径、苯丙烷生物合成途径、苯丙氨酸代谢途径、植物与病原菌互作途径和植物激素信号转导途径等。且抗性品种产生的差异基因数量、涉及的代谢通路均较感病品种多,说明抗病品种的抗性相关基因更易受到SA的诱导。 |
| 英文摘要: |
| Two different varieties of apple were taken as materials to analyze cDNA library of apple leaves treated with salicylic acid by high throughput sequencing and detect the differentially expressed genes. The results showed that there were 257 differentially expressed genes in the resistant cultivar ‘Kitanosach’ and 150 differentially expressed genes in the susceptible cultivar ‘Liquanduanfu’ and 828 differentially expressed genes between different varieties treated with salicylic acid. The differentially expressed genes were functionally categorized by GO term analysis, which demonstrated that most of the differentially expressed genes were involved in such biological processes as metabolic process, response to stimulus, biological regulation, immune system process, antioxidant activity and so on. The functional annotation associated with resistance identified genes mainly related to signal transduction mechanism, defense mechanism and energy production and transduction, etc, but the genes related to defense mechanism were not identified in ‘Liquanduanfu’. It was speculated that these genes played an important role in the process of resistance to apple ring rot induced by salicylic acid. Differentially expressed genes involved in disease resistance related metabolic pathways mainly included peroxisome, phenylpropanoid biosynthesis, phenylalanine metabolism, plant pathogen interaction, plant hormone signal transduction and so on. The differentially expressed genes and the metabolic pathways in the resistant cultivar ‘Kitanosach’ were more than in the susceptible cultivar ‘Liquanduanfu’, suggesting that the differentially expressed genes related to disease resistance were more easily induced by SA in resistant cultivars. |
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