The Heterogeneity in the Landscape of Gene Dominance in Maize is Accompanied by Unique Chromatin Environments.

ABSTRACT: Subgenome dominance after whole-genome duplication (WGD) has been observed in many plant species. However, the degree to which the chromatin environment affects this bias has not been explored. Here, we compared the dominant subgenome (maize1) and the recessive subgenome (maize2) with respect to patterns of sequence substitutions, genes expression, transposable element accumulation, small interfering RNAs, DNA methylation, histone modifications, and accessible chromatin regions (ACRs). Our data show that the degree of bias between subgenomes for all the measured variables does not vary significantly when both of the WGD genes are located in pericentromeric regions. Our data further indicate that the location of maize1 genes in chromosomal arms is pivotal for maize1 to maintain its dominanc

SUBMITTER: Yin L 

PROVIDER: S-EPMC9547528 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature