Abiotic stress-induced gene expression in pineapple as a potential genetic marker

Pineapple, a popular tropical fruit with diverse culinary and health applications, has gained significant attention due to its economic importance, health benefits, and scientific exploration. Abiotic stress has been shown to have detrimental effects on physiological aspects of pineapple, such as photosynthesis rate and internal browning. However, physical and physiological parameters are inadequate in providing accurate assessment, early detection, and enabling marker-assisted breeding for pineapple under abiotic stress. Genetic markers provide valuable insights into plant defense mechanisms and stress tolerance, enabling the identification of key genes and pathways involved. The aim of this review was to discuss the potential of genetic markers as a reliable tool for studying abiotic stress in pineapple. It focuses on genes involved in stress response and their utility as genetic markers, while also discussing physiological changes. The responsiveness of several gene families, including CPK, CBL, CYS, Dof, TALE, SBP, WRKY, ZIP, R2R3-MYB, and DREB, to abiotic stress has been known before. Therefore, harnessing the potential of these genes can yield valuable insights for comprehending and effectively managing abiotic stress in pineapple. A comprehensive understanding of the genetic response to abiotic stress in pineapple is essential for enhancing agricultural productivity and developing stress-resistant varieties.