WHEAT-RYE RECOMBINANT 'SELECTION 212' - A NOVEL SOURCE OF LINKED RESISANCE TO LEAF AND STEM RUSTS - Indian Society of Genetics and Plant Breeding

WHEAT-RYE RECOMBINANT 'SELECTION 212' - A NOVEL SOURCE OF LINKED RESISANCE TO LEAF AND STEM RUSTS

Published on Jul 26, 2018 11:41 AM

Building multiple disease resistance into high yielding varieties is one of the
main strategies for improving productivity and yield stability as well as to restrict
the use of chemicals in controlling diseases. The search for new genes, so called
gene- hunting in wild-species and incorporating them into present day cultivars
helps in genetic diversification of rust resistance. In this effort, 'Selection 212', a leaf
and stem rust resistance stock was developed by exploiting homoeologous
recombination between wheat and rye chromosomes using monosomic for chromosome
58 of variety Chinese Spring [1]. A self compatible rye strain derived from USDA
accession 366498 and wheat cultivar Sonalika were other parents of Sel. 212. When
tested at seedling stage, Sel. 212 was resistant to all the 25 pathotypes of leaf rust
pathogen (Puccinia recondita f. sp. tritici) and 20 pathotypes of stem rust pathogen
(P. graminis f. sp. tritici) [2].

Info

Year: 2000
Volume: 60
Issue: 1
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

Authors

J. B. SHARMA AND D. SINGH

Download PDF