Comprehensive analysis of imprinted genes in maize reveals allelic variation for imprinting and limited conservation with other species.

ABSTRACT: In plants, a subset of genes exhibit imprinting in endosperm tissue such that expression is primarily from the maternal or paternal allele. Imprinting may arise as a consequence of mechanisms for silencing of transposons during reproduction, and in some cases imprinted expression of particular genes may provide a selective advantage such that it is conserved across species. Separate mechanisms for the origin of imprinted expression patterns and maintenance of these patterns may result in substantial variation in the targets of imprinting in different species. Here we present deep sequencing of RNAs isolated from reciprocal crosses of four diverse maize genotypes, providing a comprehensive analysis that allows evaluation of imprinting at more than 95% of endosperm-expressed genes. We find t

SUBMITTER: Waters AJ 

PROVIDER: S-EPMC3845156 | biostudies-literature | 2013 Nov

REPOSITORIES: biostudies-literature