A Coordinated Suite of Wild-Introgression Lines in Indica and Japonica Elite Backgrounds.

ABSTRACT: Rice, Oryza sativa L., is a cultivated, inbreeding species that serves as the staple food for the largest number of people on earth. It has two strongly diverged varietal groups, Indica and Japonica, which result from a combination of natural and human selection. The genetic divergence of these groups reflects the underlying population structure of their wild ancestors, and suggests that a pre-breeding strategy designed to take advantage of existing genetic, geographic and ecological substructure may provide a rational approach to the utilization of crop wild ancestors in plant improvement. Here we describe the coordinated development of six introgression libraries (n = 63 to 81 lines per library) in both Indica (cv. IR64) and Japonica (cv. Cybonne

SUBMITTER: Singh N 

PROVIDER: S-EPMC7688981 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature