RESYNTHESIS OF THE R-NAVAJO PHENOTYPE IN MAIZE (ZEA MAYS L.)

Abstract

R-Navajo (R-nj), which in combination with other colPplementary genes, produces a solid anthocyanin pigmented patch in the cro~region of the kernel, offers excellent material forstudying differential gene action. Mutational and recombinational analyses carried out with R-nj revealed that it represents a complexwith two closely linked discrete components [1]. The self-colour (Sc) component is responsible for anthocyanin production and the Navajo (Nj) component regulates the time of onset and termination of pigment synthesis restricting the pigmentation to the crown region of the kernel. The present investigation aims to resynthesize R-nj phenotype bringing together the two components, Sc and Nj,in trans configuration.