Transcriptional and epigenetic adaptation of maize chromosomes in Oat-Maize addition lines.

ABSTRACT: By putting heterologous genomic regulatory systems into contact, chromosome addition lines derived from interspecific or intergeneric crosses allow the investigation of transcriptional regulation in new genomic environments. Here, we report the transcriptional and epigenetic adaptation of stably inherited alien maize chromosomes in two oat-maize addition (OMA) lines. We found that the majority of maize genes displayed maize-specific transcription in the oat genomic environment. Nevertheless, a quarter of the expressed genes encoded by the two maize chromosomes were differentially expressed genes (DEGs). Notably, highly conserved orthologs were more severely differentially expressed in OMAs than less conserved orthologs. Additionally, syntenic genes and highly abundant genes were over-repre

SUBMITTER: Dong Z 

PROVIDER: S-EPMC6007749 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature