Reciprocal allopolyploid grasses (Festuca × Lolium) display stable patterns of genome dominance.

ABSTRACT: Allopolyploidization entailing the merger of two distinct genomes in a single hybrid organism, is an important process in plant evolution and a valuable tool in breeding programs. Newly established hybrids often experience massive genomic perturbations, including karyotype reshuffling and gene expression modifications. These phenomena may be asymmetric with respect to the two progenitors, with one of the parental genomes being "dominant." Such "genome dominance" can manifest in several ways, including biased homoeolog gene expression and expression level dominance. Here we employed a k-mer-based approach to study gene expression in reciprocal Festuca pratensis Huds. × Lolium multiflorum Lam. allopolyploid grasses. Our study revealed significantly more genes where expression mimicked that o

SUBMITTER: Glombik M 

PROVIDER: S-EPMC8518873 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature