title: NAC transcription factor genes: genome-wide identification, phylogenetic, motif and cis-regulatory element analysis in pigeonpea (Cajanus cajan (L.) Millsp.).
abstract: The NAC (NAM, ATAF and CUC) proteins are plant-specific transcription factors implicated in development and stress responses. In the present study 88 pigeonpea NAC genes were identified from the recently published draft genome of pigeonpea by using homology based and de novo prediction programmes. These sequences were further subjected to phylogenetic, motif and promoter analyses. In motif analysis, highly conserved motifs were identified in the NAC domain and also in the C-terminal region of the NAC proteins. A phylogenetic reconstruction using pigeonpea, Arabidopsis and soybean NAC genes revealed 33 putative stress-responsive pigeonpea NAC genes. Several stress-responsive cis-elements were identified through in silico analysis of the promoters of these putative stress-responsive genes. This analysis is the first report of NAC gene family in pigeonpea and will be useful for the identification and selection of candidate genes associated with stress tolerance.
authors.affiliation: National Research Centre on Plant Biotechnology, IARI, New Delhi, 110012, India.
authors.forename: Viswanathan
authors.initials: V
authors.lastname: Satheesh
authors.forename: P Tej Kumar
authors.initials: PT
authors.lastname: Jagannadham
authors.forename: Parameswaran
authors.initials: P
authors.lastname: Chidambaranathan
authors.forename: P K
authors.initials: PK
authors.lastname: Jain
authors.forename: R
authors.initials: R
authors.lastname: Srinivasan
mesh_terms: D020816:Amino Acid Motifs; D036561:Cajanus / Q000235:genetics / Q000378:metabolism* / Q000502:physiology; D018506:Gene Expression Regulation, Plant; D018745:Genome, Plant; D010802:Phylogeny; D010940:Plant Proteins / Q000737:chemistry / Q000235:genetics*; D011401:Promoter Regions, Genetic; D013312:Stress, Physiological; D014157:Transcription Factors / Q000737:chemistry / Q000235:genetics*
chemical_list: D010940:Plant Proteins; D014157:Transcription Factors
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