Indian Society of Genetics & Plant Breeding

Important

ASSESSMENT OF 'SELECTION 212' - A WHEAT-RYE RECOMBINANT LINE FOR RESISTANCE TO LEAF AND STEM RUSTS

Published on

Selection 212, a wheat-rye recombinant between homoeologous chromosomes of wheat
and rye, the parental lines and the stocks/ near-isogenic lines each carrying known
leaf and stem rust resistance gene were tested against 25 pathotypes of Puccinia recondita
tritici and Puccinia graminis tritici in seedlings. These lines were also tested at adult
plant stage with highly virulent and prevalent pathotypes of leaf and stem rust
pathogen. SeI.212 conferred resistance to all pathotypes of both the rust pathogens. A
comparison of infection types spectrum produced on the parental lines, lines with
known resistance genes and the recombinant (SeI.212) led to the postulation that SeI.212
carries resistance different from the known resistance genes which is presumably
derived from rye. This study also forms the basis for selection of pathotypes for further
genetic and cytogenetic analysis of this stock for rust resistance.
 

Keywords: Wheat, rye (Secale cereale), leaf rust (Puccinia recondita), stem rust (Puccinia graminis), resistance.

Info

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

Authors

info_circle

Download PDF