Histone posttranslational modifications rather than DNA methylation underlie gene reprogramming in pollination-dependent and pollination-independent fruit set in tomato.

ABSTRACT: Fruit formation comprises a series of developmental transitions among which the fruit set process is essential in determining crop yield. Yet, our understanding of the epigenetic landscape remodelling associated with the flower-to-fruit transition remains poor. We investigated the epigenetic and transcriptomic reprogramming underlying pollination-dependent and auxin-induced flower-to-fruit transitions in the tomato (Solanum lycopersicum) using combined genomewide transcriptomic profiling, global ChIP-sequencing and whole genomic DNA bisulfite sequencing (WGBS). Variation in the expression of the overwhelming majority of genes was associated with change in histone mark distribution, whereas changes in DNA methylation concerned a minor fraction of differentially expressed genes. Reprogrammin

SUBMITTER: Hu G 

PROVIDER: S-EPMC7821339 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature