Abstract
The expression of drought tolerance in wheat is based on a complex genetic mechanism and involves many genes. Gene expression is contingent upon various transcription factors which are proteins in nature, hence themselves being products of specific genes known as Transcription Factor genes. In the present studies, one such gene family; the NF-Y Gene Family has been explored for its role in conferring drought tolerance in wheat. One hundred genotypes of wheat were screened at seedling stage for morphological traits related with drought tolerance. Expression analysis of nine NF-Y genes was carried out to observe their expression patterns and drought responsiveness. The genotypes 29-SAWSN 11-12 (1014) and Chakwal-50 were the highest performers, while Nax-2 5924 was the lowest performer under drought. The reportedly drought responsive gene Traes_3AS_9151583B9.1 expressed differentially in case of drought tolerant and susceptible genotypes. Its ortholog, Traes_2BS_F23D9EA93.1 gave a similar expression pattern, thereby indicating its potential drought responsiveness. The results of expression analysis supported the results of phenotypic evaluation. The information generated might be useful for breeding drought tolerant wheat by harnessing the potential of drought responsive Ta-NFY genes.
Umar Iftikhar Khan, Muhammad Aslam, Muhammad Jafar Jaskani, Muhammad Tehseen Azhar. (2021) GENE EXPRESSION ANALYSIS OF SOME GENES ENCODING NF-Y TRANSCRIPTION FACTORS UNDER DROUGHT STRESS IN Triticum aestivum L., Pakistan Journal of Agricultural Sciences, Volume 58, Issue 2.
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