Epigenetic modifications potentially controlling the allelic expression of imprinted genes in sunflower endosperm

By analysis of large-scale sequencing data of sunflower endosperm transcriptomes, we provide a comprehensive identification of imprinted transcripts (including protein-coding genes and noncoding RNAs) and found that imprinted loci are usually clustered in genome. The association between DNA methylation and the imprinted genes also be analyzed to explore the mechanism of epigenetic regulation for genomic imprinting in sunflower.