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Genome-Wide Identification and Characterization of the Laccase Gene Family in Fragaria vesca and Its Potential Roles in Response to Salt and Drought Stresses

文献类型： 外文期刊

作者： Kong, Jingjing 1 ; Xiong, Rui 1 ; Qiu, Keli 3 ; Lin, Xinle 4 ; Li, Debao 1 ; Lu, Lijuan 1 ; Zhou, Junyong 1 ; Zhu, Shufang 1 ; Liu, Mao 1 ; Sun, Qibao 1 ;

作者机构： 1.Anhui Acad Agr Sci, Inst Hort, Key Lab Hort Crop Germplasm Innovat & Utilizat Coc, Hefei 230031, Peoples R China

2.Anhui Prov Key Lab Germplasm Resources Creat & Hig, Hefei 230001, Peoples R China

3.Anhui Agr Univ, Natl Engn Lab Crop Stress Resistance Breeding, Hefei 230036, Peoples R China

4.Anhui Agr Univ, Anhui Prov Key Lab Hort Crop Qual Biol, Hefei 230036, Peoples R China

关键词： Fragaria vesca; laccase; phylogenetic analysis; expression patterns; salt and drought stresses

期刊名称：PLANTS-BASEL （ 影响因子：4.1； 五年影响因子：4.5 ）

ISSN： 2223-7747

年卷期： 2024 年 13 卷 23 期

页码：

收录情况： SCI

摘要： Laccase (LAC, EC 1.10.3.2) is integral to the formation of lignin synthesis, flavonoid production, and responses to both biotic and abiotic stresses. While recent studies have characterized numerous LAC gene families and their functions across various plants, information regarding LAC genes in woodland strawberry (Fragaria vesca) remains limited. In this study, we identified a total of 57 FvLAC genes in the Fragaria vesca genome, which were phylogenetically categorized into five distinct groups. Analysis of the gene structures revealed a uniformity in the exon-intron structure among the subgroups, while conserved motifs identified unique motifs specific to certain subgroups, suggesting functional variations. Chromosomal localization studies indicated that FvLACs are distributed across seven chromosomes, and collinearity analysis demonstrated that FvLACs exhibit collinearity within the species. Additionally, cis-acting element analysis suggested that FvLAC genes are involved in stress responses, hormone responses, light responses, and the growth and development of plants. qRT-PCR demonstrated that FvLACs responded to salt, drought, and hormone stresses, with the expression levels of FvLAC24, FvLAC32, and FvLAC51 continuously increasing under these stress conditions. Furthermore, transgenic yeast experiments revealed that FvLAC51 enhanced yeast tolerance to both salt and drought stresses, while FvLAC24 and FvLAC32 negatively regulated yeast tolerance under these same conditions. These findings provide a theoretical foundation for further investigation into the functions of FvLAC genes in woodland strawberry.

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