Abstract
Polyamine oxidase (PAOs) are enzymes associated with polyamine catabolism and play important roles in growth and development and stress tolerance of plants. In the present study, genome-wide discovery and analysis of the PAO family in sorghum was done utilizing model PAO of Arabidopsis. Six PAO genes were found using publicly available genomic data. Sorghum has the PAO gene representatives distributed throughout four chromosomes (chr1, 3, 6, and 7), and most members have 8 to 9 exons. The molecular weights of PAO proteins range from 53 to 63 kDa. PAO proteins have a theoretical PI between 5.2 and 8.1. The identification and characterization of PAO gene members in sorghum laying the foundation for further experimental studies elucidating their roles in growth, development, and stress responses, ultimately contributing to our understanding of plant biology, with significant implications for plant breeding by providing valuable insights into potential targets for enhancing stress tolerance and improving crop performance.
Published Version
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