Widespread imprinting of transposable elements and variable genes in the maize endosperm.

ABSTRACT: Fertilization and seed development is a critical time in the plant life cycle, and coordinated development of the embryo and endosperm are required to produce a viable seed. In the endosperm, some genes show imprinted expression where transcripts are derived primarily from one parental genome. Imprinted gene expression has been observed across many flowering plant species, though only a small proportion of genes are imprinted. Understanding how imprinted expression arises has been complicated by the reliance on single nucleotide polymorphisms between alleles to enable testing for imprinting. Here, we develop a method to use whole genome assemblies of multiple genotypes to assess for imprinting of both shared and variable portions of the genome using data from reciprocal crosses. This revea

SUBMITTER: Anderson SN 

PROVIDER: S-EPMC8057601 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature