Identification and functional analysis of AvLACS genes unveils their role in lipid homeostasis and waterlogging tolerance in kiwifruit (Actinidia valvata Dunn)
Meijuan Zhang, Kaiyu Ye, Jianyou Gao, Shibiao Liu, Ruonan Liu, Yuexing Chen, Qian Zhao, Yushan Lei, Jiewei Li, Cuixia Liu, Faming Wang
TL;DR
This study identifies and analyzes AvLACS genes in kiwifruit, revealing their role in lipid metabolism and waterlogging tolerance.
Contribution
The study provides the first comprehensive functional analysis of LACS genes in a waterlogging-tolerant kiwifruit species.
Findings
22 AvLACS genes were identified and grouped into five clusters based on phylogenetic and structural features.
AvLACS1.1a/b, AvLACS1.2a, and AvLACS6a/b show distinct roles in lipid metabolism under waterlogging stress.
Transcriptome and biochemical data confirm coordinated regulation of lipid pathways during waterlogging.
Abstract
Long-chain acyl-CoA synthetases (LACSs) are involved in fatty acid metabolism and catabolism by converting free fatty acids to acyl-CoAs. They are essential for initiating β-oxidation of fatty acids and regulating lipid biosynthesis in plant growth and development, as well as in plant adaptation to various environmental stresses, including waterlogging stress. However, systematic identification and functional characterization of the LACS gene family have not been comprehensively studied in the waterlogging-tolerant kiwifruit germplasm Actinidia valvata Dunn. In this study, 22 AvLACS genes were identified within the A. valvata genome. The AvLACS genes were subsequently divided into five clusters on the basis of their phylogenetic relationships, and similar subcellular localizations, exon-intron structures, motif compositions, and protein tertiary structures were found within each…
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Taxonomy
TopicsPlant responses to water stress · Plant Surface Properties and Treatments · Lipid metabolism and biosynthesis