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云师大生科学院杨双龙副教授课题组在《Industrial Crops and Products》上发表最新研究成果

已有 407 次阅读 2024-12-10 22:23 |个人分类:云师大研究|系统分类:论文交流

2024年12月5日,Elsevier 旗下top期刊《Industrial Crops and Products》在线发表了云南师范大学生命科学学院杨双龙副教授课题组最新研究成果《Genome-wide identification and protein interactions of the TIFY family in the bioenergy plant Jatropha curcas L.》。云南师范大学生命科学学院杨双龙副教授为通讯作者。

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Abstract

Jatropha curcas L. is an important energy crop whose growth is affected by abiotic stress. TIFY proteins regulate plant growth and respond to adverse conditions in higher plants. However, little information is available regarding the functions of the TIFY family genes in J. curcas. In this research, 14 members of the JcTIFY family were identified in J. curcas at the genome-wide level. These members belong to four subfamilies: jasmonate-ZIM-domain (JAZ), ZIM/ZIM-like, PEAPOD, and TIFY, and they are distributed across seven linkage groups. The TIFY proteins, consisting of 135–458 amino acids, are all hydrophilic and are predicted to be located in the nucleus. Although members of the same branch have different exon-intron structures, they share similar conserved domains and motif compositions. Protein interaction predictions indicate that TIFY proteins can form dimers and are involved in the jasmonic acid and ethylene signaling pathways. The role of TIFY in the growth of J. curcas was demonstrated by the analysis of cis-acting elements and expression of TIFY under various conditions and tissues. Furthermore, RT-qPCR analysis revealed that chilling stress and methyl jasmonate significantly induced the expression of JcJAZs, particularly JcTIFY5B. Yeast two-hybrid analysis revealed clear interactions between JcJAZs. Luciferase complementation and yeast two-hybrid assays demonstrated that JcTIFY10 formed a homodimer both in vivo and in vitro. JcJAZ proteins can form heterodimers with other proteins of the same family, and some proteins can form homodimers via the TIFY domain. The subcellular localization of JcTIFY5A and JcTIFY10 was in the nucleus, while JcTIFY9 was found in both the cytoplasm and nucleus. These results provide significant insights into the TIFY gene-mediated abiotic stress response and plant hormone signal transduction events in J. curcas.

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杨双龙-云南师范大学生命科学学院



https://blog.sciencenet.cn/blog-454141-1463750.html

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