The Polycomb Group Gene EMF2B is required for meristem determinacy and organ specification in rice flowers.

ABSTRACT: The Polycomb Repressive Complex 2 (PRC2) represses the transcriptional activity of target genes through trimethylation of Lysine 27 of Histone H3. The functions of the plant PRC2 have been chiefly described in Arabidopsis but specific PRC2 functions in other plant species, especially the cereals, are still largely unknown. Here we characterize mutants in the rice EMF2B gene, an ortholog of the Arabidopsis PRC2 gene EMBRYONIC FLOWER2 (EMF2). Loss of EMF2B in rice results in complete sterility, and mutant flowers have severe floral organ defects and indeterminacy that resemble loss of function mutants in rice E-function floral organ specification genes. Transcriptome analysis identified the E-function genes OsMADS1, OsMADS6 and OsMADS34 that are involved in floral development as differential

ORGANISM(S): Oryza sativa Japonica Group

SUBMITTER: Venkatesan Sundaresan 

PROVIDER: E-GEOD-49633 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress