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首页> 外文期刊>Australian Journal of Crop Science >Comparative analysis of gene expression of Ty-1 hybrid and non-hybrid tomatoes exposed to tomato yellow leaf curl virus strains
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Comparative analysis of gene expression of Ty-1 hybrid and non-hybrid tomatoes exposed to tomato yellow leaf curl virus strains

机译：番茄黄叶卷曲病毒株中Ty-1杂种和非杂交番茄基因表达的比较分析

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Tomato (S. lycopersicum) is an economically important vegetable food crop and threatened by TYLCV, a devastating pathogen throughout the world. In the present study, we analyzed differential gene expression in response to TYLCV-IL and TYLCV-Mld (Begomovirus, Geminiviridae) viral strains infection in the Ty-1 tomato hybrids (Esns1) and non-hybrid tomato (P1788) accessions. cDNA microarray hybridization was used to detect a group of genes that were differentially expressed in Esns1infected with TYLCV strains at 18 days post inoculation. The microarray analysis recognized significantly changed expression of different gene targets. Additional analysis confirmed that 43 genes were significantly up-regulated and 7 were down-regulated in the Esns1against compared to P1788 with TYLCV strains. Overall, major differences in gene expression were characterized by major physiological functions containing pathogen, defense, photosynthesis, cell wall or growth, metabolic, stress, biosynthetic and signaling-related responses. This is the first comparative genome-wide transcriptional study of the expression of Esns1plants depicting diverse responses to biotic stress induced by TYLCV-IL and TYLCV-Mld. Additionally, this study also provides sufficient knowledge into the identification of key defense-related genes in tomato for TYLCV disease management.
机译：番茄（S. lycopersicum）是一种经济上重要的蔬菜食品，受到世界范围内毁灭性病原体TYLCV的威胁。在本研究中，我们分析了在Ty-1番茄杂种（Esns1）和非杂交番茄（P1788）入种中，响应TYLCV-IL和TYLCV-Mld（Begomovirus，Geminiviridae）病毒株感染的差异基因表达。 cDNA微阵列杂交用于检测在接种后18天在被TYLCV株感染的Esns1中差异表达的一组基因。微阵列分析发现不同基因靶标的表达发生了显着变化。进一步的分析证实，与带有TYLCV株的P1788相比，Esns1against中有43个基因显着上调，有7个基因下调。总的来说，基因表达的主要差异以主要生理功能为特征，包括病原体，防御，光合作用，细胞壁或生长，代谢，应激，生物合成和信号相关反应。这是Esns1plants表达的第一个比较基因组范围的转录研究，描绘了对TYLCV-IL和TYLCV-Mld诱导的生物胁迫的多种反应。此外，这项研究还为鉴定番茄中用于TYLCV疾病的关键防御相关基因提供了足够的知识。

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