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Abstract Detail

Biotic and abiotic stress

Beatty, Perrin [1], Good, Allen [1].

Mapping Complex Traits in Plants: Nitrogen Use Efficiency in Barley as a Case Study.

Plant scientists have long recognized the need to develop crops that absorb and utilize nitrogen more efficiently. Two approaches have been tried, the first approach involves using traditional breeding and marker assisted selection in an attempt to identify genes involved in NUE. The second approach involves using novel gene constructs designed to improve specific aspects of NUE. One of the challenges of mapping complex traits is the number of QTL’s that are often identified, the fact that few of these QTL’s contribute significant variation to be easily detectable and the variability from year to year in the location of specific QTL’s. Metabolomic studies suffer from similar problems, with the additional variable that while a DNA marker is binary, metabolic studies have to incorporate the variability inherent in measuring the metabolite. We will discuss some of the challenges associated with mapping NUE QTL’s and in identifying key marker metabolites for NUE.

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1 - University of Alberta, Biological Sciences, CW 405 Biological Sciences Building, Edmonton, AB, T6E 2E9, Canada

Nitrogen use efficiency
plant functional trait
QTL mapping.

Presentation Type: Oral Paper:Papers for Topics
Session: 20
Location: Salon 13/14/The Shaw Conference Centre
Date: Monday, July 27th, 2015
Time: 2:30 PM
Number: 20004
Abstract ID:1167
Candidate for Awards:None

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