Chin Bull Bot ›› 2013, Vol. 48 ›› Issue (6): 623-634.doi: 10.3724/SP.J.1259.2013.00623

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Molecular Evolution of Transcriptional Repressor JAZ Protein Family in Jasmonic Acid Signaling Pathway

Longfei Duan, Xiaoqian Mu, Wenyan Li*   

  1. College of Life Sciences, Northwest A&F University, Yangling 712100, China
  • Received:2012-10-25 Revised:2013-01-31 Online:2013-12-03 Published:2013-11-01
  • Contact: Wenyan Li

Abstract: Jasmonic acid (JA) plays a significant role in the regulation of developmental processes, stress responses and secondary metabolisms in plants. Jasmonate ZIM-domain (JAZ) proteins are transcriptional repressors that regulate the process of JA signal transduction from the SCFCOI1 complex to JA response genes in the JA signaling pathway. Comparative genomic analysis was performed to investigate the original and evolutionary relationship among JAZ paralogs in plants. The main results are as follows: (1) 82 JAZ genes and their homologs were identified from 15 representative species, including the 6 major plant lineages of chlorophytes, bryophytes, pteridophytes, gymnosperms, monocots and eudicots; moreover, green algae contained no JAZ homologs, which suggests that JAZ genes probably originated from land plants. (2) Phylogenetic analysis revealed 10 well-conserved subfamilies in plants; lineage- specific expansion, especially by tandem duplication and segmental duplication among species, were the major mechanisms in the evolution of the JAZ protein family and generated several lineage-specific JAZ subfamilies in land plants. (3) Exon-intron structure analysis revealed that the gene structures of JAZ paralogs contained a variable number of introns, from 0 to 7, and variable length of introns, from 62 to 4 222 bp, which suggests the events of intron loss as well as indels within introns that contributed to the structural diversity of current JAZ homologs. We provide valuable information on research into the JAZ protein family in plants.

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[1] He Guan-fu. Retrospect and Prospect of Plant Chemotaxonomy in China[J]. Chin Bull Bot, 1983, 1(02): 7 -13 .
[2] Han Shan-hua. Sealing of the Seams Between the Galss Knives and Their Knife-Pools[J]. Chin Bull Bot, 1990, 7(03): 63 -64 .
[3] Lin Zhong-Ping Wu Wendy Y.. Signal Transduction and Its Relative Gene Expression in Plants with Response to Pathogen Infection and Machanical Injury[J]. Chin Bull Bot, 1995, 12(02): 9 -14 .
[4] . [J]. Chin Bull Bot, 2000, 17(专辑): 2 -02 .
[5] Chen Zhao;Yujie Fu;Yuangang Zu;Naijing Zhang;Lili Wang. Some Strategies for Studying the Production of Biodiesel from Oil Plants[J]. Chin Bull Bot, 2006, 23(3): 312 -319 .
[6] Zheng Guang-hua. A survey of seed physiology in China[J]. Chin Bull Bot, 1983, 1(01): 12 -16 .
[7] . Advances on Plant Science Research in China in 2005[J]. Chin Bull Bot, 2006, 23(3): 225 -241 .
[8] Zhang Hong Jian Ling-cheng Li Guang-min. Studies of Plant Cold-Resister for Enhancing Cold-Resistant Ability and Cold Stability of Cellular Membrane System in Cucumber Seedlings[J]. Chin Bull Bot, 1994, 11(特辑): 154 -162 .
[9] Wen Yuan-ying;Wang Shu-xiu;Wang Lei and Hu Chang-xu. A Preliminary Study of the Constituents of Essential Oil of Osyris wightiana[J]. Chin Bull Bot, 1991, 8(01): 49 -50 .
[10] Li Xian-zhang;Li Ming-fu and Hou Lin-lin. Acquirement of Potato Virus-free Planflet and Virus Detection[J]. Chin Bull Bot, 1997, 14(02): 52 -54 .