Authors: Yan Li YiYun Chen Feng Wang ZhiSheng Xu Qian Jiang AiSheng Xiong
Publish Date: 2014/06/27
Volume: 41, Issue: 9, Pages: 6003-6011
Abstract
VIP1 a VirE2interacting protein 1 specifically interacts with VirE2 and acts as a molecular adaptor in Agrobacteriummediated genetic transformation This protein is widely used in plant genetic engineering In this study we cloned the Agvip1 gene that encodes the AgVIP1 protein from three celery Apium graveolens cultivars namely “Liuhe Huangxinqin” “Jinnan Shiqin” and “Ventura” The sequence analysis indicated that the Agvip1 gene from the three celery cultivars contained 768 bp Open Reading Frame and encoded with 255 amino acid residues The Nterminal of AgVIP1 contained RNA recognition motif superfamily a conserved domain The Agvip1 gene in three cultivars had very high homology The phylogenetic tree of VIP1like proteins was constructed among celery and other plant species showing that VIP1like proteins from Solanum lycopersicum and Solanum tuberosum in Solanaceae had the shortest evolutionary relationship with AgVIP1 from A graveolens in Apiaceae Quantitative realtime PCR demonstrated that the Agvip1 gene had tissuespecific expression mainly in the celery root The expression analysis showed that the Agvip1 gene was induced by abiotic stresses differently in three celery cultivars In “Liuhe Huangxinqin” the Agvip1 gene was upregulated under hot cold stresses In “Jinnan Shiqin” the Agvip1 gene was upregulated obviously under cold drought treatments However in “Ventura” the Agvip1 gene was upregulated under salt stress The Agvip1 was also induced after metal ions treatments in three celery cultivars These findings will provide more information on the Agvip1 gene and AgVIP1 protein and enhance the understanding of the Agvip1 gene regulatory mechanisms under abiotic and metal ions stresses in celeryThe research was supported by National Natural Science Foundation of China 31272175 New Century Excellent Talents in University NCET110670 Jiangsu Natural Science Foundation BK20130027 Priority Academic Program Development of Jiangsu Higher Education Institutions and Jiangsu Shuangchuang Project
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