Oil trait and multi-omic analyses reveal the regulatory network of triacylglycerol and fatty acid accumulation in hexaploid Camellia oleifera across different harvesting stages.

ABSTRACT:

Background

The regulatory network governing triacylglycerol (TAG) and fatty acid (FA) accumulation in hexaploid Camellia oleifera kernels remains unclear due to the lack of an appropriate reference genome. In this study, we combined oil trait measurements with multi-omics analyses (global transcriptomics, miRNA sequencing, proteomics, and metabolomics) across 3 harvest stages, using the hexaploid C. oleifera 'Changlin 40' genome as reference.

Results

Integrated analysis of oil traits and multi-omics data demonstrated that premature harvesting (1 week before the recommended date) decreased oil production and enhanced saturated FAs composition, while postponed harvesting (1 week after the recommended date) preserved oil yield and increased oleic and linolenic acid contents. Co

SUBMITTER: Wang J 

PROVIDER: S-EPMC12359935 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature