Rare Allele of A Novel Histone H4 Acetyltransferase Enhances Grain Weight, Yield and Plant Biomass Presumably Through the Regulation of Transcription

ABSTRACT: Grain weight is an important crop yield component; however, its underlying regulatory mechanisms are largely unknown. Here, we identify a grain-weight quantitative trait locus (QTL) encoding a new-type GNAT-like protein that harbors intrinsic histone acetyltransferase activity (OsglHAT1). Our genetic and molecular evidences pinpointed the QTL-OsglHAT1’s allelic variations to a 1.2-kilobase region upstream of the gene body, which is consistent with its function as a positive regulator of the traits. Elevated OsglHAT1 expression enhances grain weight and yield by enlarging spikelet hulls via increasing cell number and accelerating grain filling, and increases global acetylation levels of histone H4. OsglHAT1 localizes to the nucleus, where it likely functions through the regulation of trans

ORGANISM(S): Oryza sativa Japonica Group

SUBMITTER: Tomoyuki Furuta 

PROVIDER: E-GEOD-62554 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress