Genome-Wide Identification and Expression Profiling Analysis of the Long-Chain Acyl-CoA Synthetases Reveal Their Potential Roles in Wheat Male Fertility
文献类型： 外文期刊
作者： Liu, Yongjie 1 ; Liu, Zihan 1 ; Zhang, Huishu 1 ; Yuan, Shaohua 1 ; Li, Yanmei 1 ; Zhang, Tianbao 1 ; Bai, Jianfang 1 ; Zhang, Liping 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Hybrid Wheat, Beijing 100097, Peoples R China
2.Mol Genet Beijing Key Lab Hybrid Wheat, Beijing 100097, Peoples R China
关键词： long-chain acyl-CoA synthetase; anther; fatty acids; male sterility; cuticular wax
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：6.208； 五年影响因子：6.628 ）
ISSN：
年卷期： 2022 年 23 卷 19 期
页码：
收录情况： SCI
摘要： Long-chain acyl-CoA synthetase (LACS), responsible for the conversion of free FAs into acyl-CoAs, is involved in multiple pathways of lipid metabolism. Although LACS genes in Arabidopsis have been well characterized, no detailed information concerning this family is available for wheat. In the present study, a systematic analysis was carried out for the wheat LACS family. As a result, 30 putative TaLACSs were identified. Expression analysis revealed that 22 Takacs were expressed in wheat anthers. Two orthologs of AtLACS1, TaLACS2 and TaLACS3, were repressed at the vacuolated stage in the cold-treated BS366 (a temperature-sensitive genic male-sterile line). Thus, TaLACS2 and TaLACS3 may function like AtLACS1 in wax biosynthesis in anthers, and the repression of both genes may be correlated with the male sterility of BS366. TaLACS5 is an ortholog of AtLACS5, which was expressed exclusively in anthers. TaLACS5 was repressed in the cold-treated BS366 at the tetrad, uninucleate, and vacuolated stages. The negative correlation between TaLACS5 and TaGAMYB-B, and the MYB domain found in the promoter sequence suggested that TaLACS5 may be negatively regulated by TaGAMYB-B to participate in wheat fertility. These findings will provide a valuable foundation for the understanding of the wheat LACS gene family in male fertility.
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