Genetic characterization of resistance to stripe rust, leaf rust, Karnal bunt and cereal cyst nematode in a multiple disease resistant wheat stock W8627

Published on May 29, 2018 02:57 AM

Genetic analysis of multiple disease resistance was carried
out in segregating populations of bread wheat line W8627
and PBW343 against stripe rust (Puccinia striiformis), leaf
rust (Puccinia triticina), Karnal bunt (Tilletia indica) isolates
and cereal cyst nematode (Heterodera avenae). Seedling
response of W 8627, PBW 343 and F1against 78S84 race of
Puccinia striiformis, 77-5 race of P. triticina reflected that
the wheat line W8627 possessed seedling resistance genes
against both the races. Based on the segregation pattern
of F2 generation and F3 families, two complementary
recessive genes for resistance to 78S84 race of Puccinia
striiformis and one recessive gene each for resistance to
77-5 race P. triticina, mixture of Tilletia indica isolates and
Ha 41 biotype of H. avenae were identified. Co-segregation
studies revealed no linkage between concerned resistance
genes.
 

Keywords: Bread wheat, multiple disease resistance, genetic analysis, pathogenic races

Info

Year: 2016
Volume: 76
Issue: 1
Article DOI: 10.5958/0975-6906.2016.00006.7
Print ISSN: 0019-5200
Online ISSN: 0975-6906

Authors

Reenu Virdi info_circle
G. S. Mavi info_circle
Ritu Bala info_circle
V. S. Sohu info_circle
N. S. Bains info_circle
Daman Jeet Kaur info_circle
Indu Sharma info_circle

Download PDF