title: Genome-wide identification and functional analysis of the TIFY gene family in response to drought in cotton.
abstract: Jasmonates control many aspects of plant biological processes. They are important for regulating plant responses to various biotic and abiotic stresses, including drought, which is one of the most serious threats to sustainable agricultural production. However, little is known regarding how jasmonate ZIM-domain (JAZ) proteins mediate jasmonic acid signals to improve stress tolerance in cotton. This represents the first comprehensive comparative study of TIFY transcription factors in both diploid A, D and tetraploid AD cotton species. In this study, we identified 21 TIFY family members in the genome of Gossypium arboretum, 28 members from Gossypium raimondii and 50 TIFY genes in Gossypium hirsutum. The phylogenetic analyses indicated the TIFY gene family could be divided into the following four subfamilies: TIFY, PPD, ZML, and JAZ subfamilies. The cotton TIFY genes have expanded through tandem duplications and segmental duplications compared with other plant species. Gene expression profile revealed temporal and tissue specificities for TIFY genes under simulated drought conditions in Gossypium arboretum. The JAZ subfamily members were the most highly expressed genes, suggesting that they have a vital role in responses to drought stress. Over-expression of GaJAZ5 gene decreased water loss, stomatal openings, and the accumulation of H2O2in Arabidopsis thaliana. Additionally, the results of drought tolerance assays suggested that this subfamily might be involved in increasing drought tolerance. Our study provides new data regarding the genome-wide analysis of TIFY gene families and their important roles in drought tolerance in cotton species. These data may form the basis of future studies regarding the relationship between drought and jasmonic acid.
authors.affiliation: State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
authors.forename: Ge
authors.initials: G
authors.lastname: Zhao
authors.affiliation: State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
authors.forename: Yun
authors.initials: Y
authors.lastname: Song
authors.affiliation: State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
authors.forename: Caixiang
authors.initials: C
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
authors.forename: Hamama Islam
authors.initials: HI
authors.lastname: Butt
authors.affiliation: State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
authors.forename: Qianhua
authors.initials: Q
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
authors.forename: Chaojun
authors.initials: C
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
authors.forename: Zuoren
authors.initials: Z
authors.lastname: Yang
authors.affiliation: State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
authors.forename: Zhao
authors.initials: Z
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
authors.forename: Eryong
authors.initials: E
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China. zhangxueyan_caas@126.com.
authors.forename: Xueyan
authors.initials: X
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China. aylifug@163.com.
authors.forename: Fuguang
authors.initials: F
authors.lastname: Li
mesh_terms: D002874:Chromosome Mapping / Q000379:methods*; D004171:Diploidy; D055864:Droughts; D020869:Gene Expression Profiling / Q000379:methods*; D018506:Gene Expression Regulation, Plant; D003368:Gossypium / Q000737:chemistry / Q000235:genetics*; D005810:Multigene Family; D009928:Organ Specificity; D010802:Phylogeny; D010940:Plant Proteins / Q000737:chemistry / Q000235:genetics; D011123:Polyploidy; D000072417:Protein Domains; D014157:Transcription Factors / Q000737:chemistry / Q000235:genetics*
chemical_list: D010940:Plant Proteins; D014157:Transcription Factors
keywords: Drought assay; Expression analysis; Gossypium spp.; Phylogenetic tree; TIFY gene family