Abstract
The transcriptome of Thinopyrum elongatum under water deficit stress was analyzed using RNA-Seq technology. The results showed that genes involved in processes of amplification of stress signaling, reductions in oxidative damage, creation of protectants, and roots development were expressed differently, which played an important role in the response to water deficit. The Th. elongatum transcriptome research highlights the activation of a large set of water deficit-related genes in this species and provides a valuable resource for future functional analysis of candidate genes in the water deficit stress response.
Highlights
Water deficit is responsible for the greatest crop losses worldwide and is expected to worsen, heightening international interest in drought tolerance in crops [1]
Previous studies have shown that the plant response to water deficit stress involves numerous genes, which activate a series of physiological and biochemical processes to counteract the effects of the water-limited environment, including (1) the synthesis and accumulation of various osmoprotectants, (2) maintaining intracellular ion homeostasis via the expression of transporters, and (3) scavenging of reactive oxygen species (ROS) generated as a secondary effect of water deficit by detoxification enzymes [2, 3]
Many transcription factors belonging to different transcription factor families, such as bZIP, AP2/ERF, MYB, NAC, WRKY, and zinc finger, are important regulators of the plant response to abiotic stress, and their activity can improve stress tolerance in transgenic plants [2, 3]
Summary
Water deficit is responsible for the greatest crop losses worldwide and is expected to worsen, heightening international interest in drought tolerance in crops [1]. Previous studies have shown that the plant response to water deficit stress involves numerous genes, which activate a series of physiological and biochemical processes to counteract the effects of the water-limited environment, including (1) the synthesis and accumulation of various osmoprotectants, (2) maintaining intracellular ion homeostasis via the expression of transporters, and (3) scavenging of reactive oxygen species (ROS) generated as a secondary effect of water deficit by detoxification enzymes [2, 3]. These protein kinases, including calmodulin-dependent protein kinases (CDPKs), mitogenactivated protein kinases (MAPKs), receptor protein kinases (RPKs), and ribosomal protein kinases, participate in signal transduction processes in abiotic stress signaling and function as hubs in abiotic stress signaling
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