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首页> 外文期刊>Cellular & molecular biology letters. >IDENTIFICATION OF DROUGHT-INDUCED TRANSCRIPTION FACTORS IN Sorghum bicolor USING GO TERM SEMANTIC SIMILARITY
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IDENTIFICATION OF DROUGHT-INDUCED TRANSCRIPTION FACTORS IN Sorghum bicolor USING GO TERM SEMANTIC SIMILARITY

机译：利用术语语义相似度识别高粱中干旱诱导的转录因子

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摘要

Stress tolerance in plants is a coordinated action of multiple stress response genes that also cross talk with other components of the stress signal transduction pathways. The expression and regulation of stress-induced genes are largely regulated by specific transcription factors, families of which have been reported in several plant species, such as Arabidopsis, rice and Populus. In sorghum, the majority of such factors remain unexplored. We used 2DE refined with MALDI-TOF techniques to analyze drought stress-induced proteins in sorghum. A total of 176 transcription factors from the MYB, AUX_ARF, bZIP, AP2 and WRKY families of drought-induced proteins were identified. We developed a method based on semantic similarity of gene ontology terms (GO terms) to identify the transcription factors. A threshold value (>= 90%) was applied to retrieve total 1,493 transcription factors with high semantic similarity from selected plant species. It could be concluded that the identified transcription factors regulate their target proteins with endogenous signals and environmental cues, such as light, temperature and drought stress. The regulatory network and cis-acting elements of the identified transcription factors in distinct families are involved in responsiveness to auxin, abscisic acid, defense, stress and light. These responses may be highly important in the modulation of plant growth and development.
机译：植物的胁迫耐受性是多种胁迫反应基因的协同作用，这些基因也与胁迫信号转导途径的其他成分发生串扰。胁迫诱导基因的表达和调控在很大程度上受特定转录因子的调控，在一些植物物种如拟南芥，水稻和胡杨中已经报道了其转录家族。在高粱中，大多数这样的因素尚待探索。我们使用通过MALDI-TOF技术精制的2DE分析高粱中干旱胁迫诱导的蛋白质。从干旱诱导的蛋白质MYB，AUX_ARF，bZIP，AP2和WRKY家族中鉴定出总共176个转录因子。我们开发了一种基于基因本体术语（GO术语）的语义相似性来识别转录因子的方法。应用阈值（> = 90％）从选定的植物物种中检索具有高语义相似性的总计1,493个转录因子。可以得出结论，已识别的转录因子通过内源信号和环境提示（例如光照，温度和干旱胁迫）调节其靶蛋白。所鉴定的转录因子在不同家族中的调控网络和顺式作用元件涉及对生长素，脱落酸，防御，压力和光照的响应。这些反应在调节植物生长和发育中可能非常重要。

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