TY  - JOUR
AU  - Suchithra, B.
AU  - Shafia Hoor, F.
AU  - Puspha, T. C.
AU  - Nagesh Babu, R.
T1  - Unraveling NAC family transcription factors and their expression analysis under high temperature and drought stress in Peanut
JO  - Journal of Stress Physiology & Biochemistry
Y1  - 2025/june
VL  - 21
IS  - 2
SP  - 16
EP  - 30
UR  - http://www.jspb.ru/issues/2025/N2/JSPB_2025_2_16-30F.pdf
KW  - NAC transcription factor
KW  - phylogenetic analysis
KW  - qRT-PCR
KW  - Peanut
U1  - 1997-0838
N2  - Transcription factors play pivotal roles in the conversion of stress signal perception to stress-responsive gene expression. NAC (NAM, ATAF1/2 and CUC2) domain proteins are plant-specific transcriptional factors known to play diverse roles in various plant developmental processes and received considerable attention as regulators in stress signaling. Considering the relatively large number of NAC transcription factors from different plants and their diverse roles under complex environmental stimuli remains a challenge. In this study, phylogenies, genome localizations, gene structure and expression profiles of NAC genes under high temperature and drought treatments, with a focus on Peanut (Arachis hypogaea) genotypes (A. duranensis & A. ipaensis) was performed. Thirty eight NAC genes from each genotype were detected, including eight membrane-bound members which includes AdNAC26, AdNAC36, AiNAC16, AiNAC17, AiNAC37, AdNAC14, AiNAC12 & AiNAC29. Majority of the identified NAC proteins had atleast four NAC domain containing conserved motifs and were found to be localized to nucleus. AdNAC21 and AiNAC3 were found to be positive regulators in drought and high temperature responses. Our results provides foundation for selection of promising stress- responsive NAC candidates for detailed plant functional analysis, leading to development of transgenic Peanut varieties with improved productivity under drought and high temperature.
ER  -