文献类型： 外文期刊
作者： Wen, Hao 1 ; Liu, Xinyu 1 ; Zhao, Xueting 3 ; Zhao, Tingting 2 ; Feng, Cuilian 2 ; Chang, Hailong 4 ; Wang, Jungang 2 ; Lin, Jishan 1 ;
作者机构： 1.Fujian Agr & Forestry Univ, Ctr Genom & Biotechnol, Fuzhou 350002, Fujian, Peoples R China
2.Chinese Acad Trop Agr Sci, Natl Key Lab Trop Crop Breeding, Inst Trop Biosci & Biotechnol, Sanya 572024, Peoples R China
3.Chinese Acad Trop Agr Sci, Sanya Res Inst, Sanya 572024, Hainan, Peoples R China
4.Guangdong Acad Sci, Inst Nanfan & Seed Ind, Guangzhou 510000, Peoples R China
关键词： Saccharinae; DHHC; Gene duplications; Sucrose storage; Evolutionary
期刊名称：SCIENTIFIC REPORTS （ 影响因子：3.9； 五年影响因子：4.3 ）
ISSN： 2045-2322
年卷期： 2025 年 15 卷 1 期
页码：
收录情况： SCI
摘要： The DHHC domain genes are crucial for protein lipid modification, a key post-translational modification influencing membrane targeting, subcellular trafficking, and protein function. Despite their significance, the DHHC gene family in Saccharinae remains understudied. Here, we identified 32 (110 alleles), 28, 53, and 48 DHHC genes in Saccharum spontaneum Np-X, Erianthus rufipilus, Miscanthus sinensis, and Miscanthus lutarioriparius, respectively. Collinearity analysis uncovered the loss of two M. lutarioriparius genes, homologues of EruDHHC1C and EruDHHC3A. Phylogenetic and classification analyses categorized DHHC family members into six subgroups (A-F). Ka/Ks ratio analysis indicated that gene duplication in these species was primarily driven by whole-genome duplication (WGD) and dispersed duplication (DSD), with DHHC genes evolving under strong purifying selection. Gene expression and trait correlation analysis revealed a significant negative correlation between SspDHHC28A expression in S. spontaneum and sucrose content, suggesting a role in photosynthesis product transport during rapid growth. This study deepens our understanding of the DHHC gene family's functional dynamics and evolutionary path in Saccharinae, laying a foundation for future research.
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