Manipulation of SlMXl for enhanced carotenoids accumulation and drought resistance in tomato

作     者：Mohamed Ewas Yanqiang Gao Shouchuang Wang Xianqing Liu Hongyan Zhang Elsayed M. E. Nishawy Farhan Aii Raheel Shahzad Khurram Ziaf Hizar Subthain Cathie Martin Jie Luo 

作者机构：National Key Laboratory of Crop Genetic Improvement andNational Center of Plant Gene Research (Wuhan) Huazhong Agricultural University Wuhan 430070 China College of Life Science and Technology Huazhong Agricultural University Wuhan 430070 China Key Laboratory of Horticultural Plant Biology Ministry of Education Huazhong Agricultural University Wuhan 430070China John Innes Centre Norwich Research Park Colney Norwich NR4 7UH UK 

出 版 物：《Science Bulletin》 (科学通报（英文版）)

年 卷 期：2016年第61卷第18期

页      面：1413-1418页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 09[农学] 071007[理学-遗传学] 0901[农学-作物学] 090102[农学-作物遗传育种] 

基　　金：supported by the Major State Basic Research Development Program of China (2011CB100601) 

主　　题：Tomato Trichome SlMXI . Abioticstress Nutrient level 

摘      要：Plants are the ultimate source of nutrients in the human diet. To ensure adequate availability of high quality food for an increasing world population, traits including improved tolerance of stresses and nutrient levels need to be selected in crops, both individually and in combination. Here we report the identification of SIMX1 encoding a MIXTA-like MYB transcription factor in tomato that simultaneously modulates drought resistance and metabolic processes through regulating key structural and regulatory genes of the corre- sponding pathways. Over-expression of SIMX1 results in substantially increased drought tolerance and improved fruit quality, while knocking down SIMX1 resulted in the opposite phenotypes. Our study indicates an effective way with multiplebeneficial traits by genetic engineering of a single regulatory gene and can be a novel approach to breeding crops.