Gene Families Controlling Frost Stress: A review
Hafiz Muhammad Mohsin Hassan
Department of Botany, The Islamia University of Bahawalpur
https://orcid.org/0009-0002-5240-5440
Muhammad Akram
Department of Botany, The Islamia University of Bahawalpur, Pakistan.
Irum Tabbasum
Department of Plant Pathology, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Punjab, Pakistan.
Warda Abbas
Department of Botany, The Islamia University of Bahawalpur, Pakistan.
Muhammad Uzair Zafar
Department of Botany, The Islamia University of Bahawalpur, Pakistan.
Muhammad Sufyan
Department of Botany, The Islamia University of Bahawalpur, Pakistan.
Anam Shehzadi
Department of Botany, The Islamia University of Bahawalpur, Pakistan.
Arslan Asghar
Department of Botany, The Islamia University of Bahawalpur, Pakistan.
Maria Riaz
Department of Botany, The Islamia University of Bahawalpur, Pakistan.
DOI: https://doi.org/10.63611/aae.02.01.047
Keywords: gene families, frost stress, cold acclimation, plant responses
Abstract
Frost stress is a major abiotic factor affecting plant development, reproduction, membrane integrity, germination, and overall productivity. It influences plants at the morphological, physiological, and cellular levels. In response to cold stress, phenotypic signs include poor germination, stunted growth, yellowing of leaves (chlorosis), decreased leaf growth and wilting, and tissue death (necrosis). Cold stress also has a negative impact on plant fertility. The primary detrimental impact of cold stress is significant membrane damage. This damage is mostly the result of severe dehydration caused by freezing during cold stress. Different plants have distinct mechanisms in response to frost stress. Varieties of the same plant species that have lived in subtropical climatic conditions for long periods are not frost tolerant and do not exhibit cold acclimation. Winter varieties are those that respond to cold acclimation or develop frost tolerance, while spring varieties are those that cannot positively respond to cold acclimation or develop frost tolerance. The objective of the present review is to identify genes and their families that play a significant role in controlling frost stress. Different genes, such as QTL, CBF, PPR, GWAS, COR, IRI, FLt-2L, Fr-I, AFP, QM, TPT, Fr-B1, Fr-B2, LEA, IRI-1, and IRI-2, including families identified, are involved.
