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IJBT Vol.08(2) [April 2009] >

Title: STS marker based tracking of slow rusting Lr34 gene in Indian wheat genotypes
Authors: Priyamvada
Tiwari, Ratan
Saharan, M S
Chatrath, R
Siwach, Priyanka
Mishra, B
Keywords: AUDPC
leaf rust
Lr34 gene
Puccinia triticina
Issue Date: Apr-2009
Publisher: CSIR
Abstract: Bi-allelic STS marker was used to confirm the presence of adult plant durable rust resistance gene Lr34 in advance generation breeding lines. These lines were scored for leaf rust three times at an equal interval and the area under disease progress curve (AUDPC) was calculated. The lower AUDPC values of Lr34 positive lines confirmed their slow rusting nature. In the absence of direct selection method, the breeders are selecting Lr34 gene carrying lines unintentionally as they showed better resistance. Lines possessing Lr34, an ‘undefeated gene’, should be used in breeding programme in order to have a broad-spectrum durable leaf rust resistance.
Page(s): 207-213
ISSN: 0972-5849
Source:IJBT Vol.08(2) [April 2009]

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