Deciphering the genetic basis of stripe rust resistance of exotic winter wheat cultivars and their utilization in pre-breeding | Zendy

D. Datta | Zendy; M. Prashar | Zendy; C Bhardwaj S | Zendy; Singh Sanjay | Zendy; P Das S | Zendy; Kumar Ashish | Zendy

Open Access

Deciphering the genetic basis of stripe rust resistance of exotic winter wheat cultivars and their utilization in pre-breeding

Author(s) -

D. Datta,

M. Prashar,

C Bhardwaj S,

Singh Sanjay,

P Das S,

Kumar Ashish

Publication year - 2012

Publication title -

african journal of agricultural research

Language(s) - English

Resource type - Journals

ISSN - 1991-637X

DOI - 10.5897/ajar12.319

Subject(s) - cultivar , rust (programming language) , biology , resistance (ecology) , stripe rust , mega , virulence , agronomy , breeding program , gene , plant disease resistance , horticulture , genetics , physics , astronomy , computer science , programming language

Genetic basis of stripe rust resistance was investigated in two exotic winter wheat cultivars namely, Spaldings prolific and China84-40022. Inheritance was studied with the most virulent stripe rust race 46S1119 (avirulent on Yr1, 5, 10, 15, 27, SP, Su, CV and virulent on Yr2, 3, 4, 6, 7, 8, 9, 22, 23, 25). The stripe rust resistance of Spaldings prolific and China84-40022 were governed by single dominant gene. Test of allelism demonstrated that the genes imparting resistance against the pathotype 46S119 in Spaldings prolific, China84-40022, Mega and CappelleDesprez are different. The rust resistance genes of these cultivars were incorporated in to the spring wheat. Three genetic stocks namely, UP2338*3/China84-40022 (FLW3), UP2338*3/Mega (FLW12) and UP2338*3/CappelleDesprez (FLW40) were developed for their subsequent utilization in resistance breeding. Key words: Stripe rust resistance in winter wheat, anticipatory pre-breeding.

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