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Genome-wide identification of OSCA gene family and their potential function in the regulation of dehydration and salt stress in Gossypium hirsutum

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Journal of Cotton Research 2019年第2期2卷 87-104页

作者： YANG Xiu XU Yanchao YANG Fangfang MAGWANGA Richard Odongo CAI Xiaoyan WANG Xingxing WANG Yuhong HOU Yuqing WANG Kunbo LIU Fang ZHOU Zhongli Institute of Cotton Research Chinese Academy of Agricultural Science (ICRCAAS)/Research Base in Anyang Institute of TechnologyState Key Laboratory of Cotton Biology

Background:Cotton(Gossypium hirsutum) provides the largest natural fiber for the textile manufacturing industries,but its production is on the decline due to the effects of *** salt-alkalization leads to damage in cotton growth and a decrease in ***-gated calcium-permeable channels(OSCA) have been found to be involved in the detection of extracellular changes which trigger an increase in cytosolic free calcium ***-induced calcium ion increases have been widely speculated to be playing a role in osmosensing in ***,the molecular nature of the corresponding calcium ion channels remains *** this research work,we describe the OSCA genes and their putative function in osmosensing in plants by carrying out genomewide identification,characterization and functional analysis of the significantly up-regulated OSCA gene,GhOSCA1.1 through reverse ***:A total of 35,21 and 22 OSCA genes were identified in ***,***,and *** genomes,respectively,and were classified into four different clades according to their gene structure and phylogenetic *** and protein structure analysis indicated that 35 GhOSCA genes contained a conserved RSN17 TM(PF02714) ***,the cis-regulatory element analysis indicated that the OSCA genes were involved in response to abiotic ***,the knockdown of one of the highly up-regulated genes,GhOSCA1.1 showed that the virus-induced gene silenced(VIGS) plants were highly sensitive to dehydration and salinity stresses compared with the none VIGS plants as evident with higher concentration levels of oxidant enzymes compared with the antioxidant enzymes on the leaves of the stressed ***:This study provides the first systematic analysis of the OSCA gene family and will be important for understanding the putative functions of the proteins encoded by the OSCA genes in *** results provide a new insight of de

关键词： OSCA gene family Gossypium hirsurum VIGS salt and dehydration stress

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