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Type: Journal article
Title: Rapid phenotyping for adult-plant resistance to stripe rust in wheat
Author: Hickey, L.
Wilkinson, P.
Knight, C.
Godwin, I.
Kravchuk, O.
Aitken, E.
Bansal, U.
Bariana, H.
DeLacy, I.
Dieters, M.
Citation: Plant Breeding, 2012; 131(1):54-61
Publisher: Blackwell Verlag GMBH
Issue Date: 2012
ISSN: 0179-9541
Statement of
Lee T. Hickey, Peter M. Wilkinson, Cheridan R. Knight, Ian D. Godwin, Olena Y. Kravchuk, Elizabeth A. B. Aitken, Urmil K. Bansal, Harbans S. Bariana, Ian H. DeLacy and Mark J. Dieters
Abstract: Stripe or yellow rust (YR) is a significant problem in wheat crops worldwide. The deployment of adult-plant resistance (APR) genes in wheat cultivars is considered a sustainable management strategy, as these genes confer partial resistance that is usually non-race specific. Screening for APR typically involves assessment of adult plants in the field, where expression may be influenced by environmental factors. We report a high-throughput screening method for YR APR that can be used to assess fixed lines or segregating populations grown under controlled environmental conditions (CEC). Inoculation of 3-week-old wheat plants from lines with known APR responses to YR, when grown under constant light and temperature, provided disease responses typical of adult plants. Two F 2 populations ('H45'×'ST93' and 'Wyalkatchem'×'ST93') segregating for APR were assessed under both CEC and field conditions. These populations showed similar variation in disease response and lines assessed in both environments attained similar rankings. Phenotypic screening using CEC and continuous light provides an opportunity to accelerate the development of new wheat cultivars with durable resistance. © 2011 Blackwell Verlag GmbH.
Keywords: yellow rust
segregating populations
allele enrichment
screening method
minor gene resistance
durable resistance
Rights: © 2011 Blackwell Verlag GmbH
DOI: 10.1111/j.1439-0523.2011.01925.x
Appears in Collections:Agriculture, Food and Wine publications
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