Genomic sequence, gene-specific probe, transcript defined by S1-nuclease protection analysis. chi genes not expressed in P-ww-1112 pericarp, low levels of transcripts in B73 light-grown seedling, high levels in P1-rr-4B2 pericarps and in husks with B1,Pl1; cold causes a 3-fold increase in transcript (Christie 1994). 4 exons. This gene was originally curated in MaizeGDB Database and the map position was displayed on the maize bins map if feasible.