The R locus is a key regulatory gene in the maize anthocyanin biosynthetic pathway.
Extensive allelic diversity of R gene and tissue specific patterns of anthocyanin
pigmentation governed by the Rgene and its displaced repeats (collectively termed as the
R gene family) provide an ideal system for the analysis of differential regulation of gene
expression. Elegant genetic experiments on R locus have enriched the understanding of
tissue-specific gene expression and the regulation mechanisms in higher plants. The
progress made in using the R gene as a marker system to study differential gene expression
is reviewed here.
Keywords: Maize, R gene family, tissue specificity, allelic interaction, gametic imprinting.
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906
B. M. PRASANNA AND K. R. SARKAR info_circle