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Curr Opin Plant Biol. 2010 Apr;13(2):193-205. doi: 10.1016/j.pbi.2010.01.001.

Detection and use of QTL for complex traits in multiple environments.

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  • 1Biometris, Wageningen University and Research Centre, Wageningen, The Netherlands.

Abstract

QTL mapping methods for complex traits are challenged by new developments in marker technology, phenotyping platforms, and breeding methods. In meeting these challenges, QTL mapping approaches will need to also acknowledge the central roles of QTL by environment interactions (QEI) and QTL by trait interactions in the expression of complex traits like yield. This paper presents an overview of mixed model QTL methodology that is suitable for many types of populations and that allows predictive modeling of QEI, both for environmental and developmental gradients. Attention is also given to multi-trait QTL models which are essential to interpret the genetic basis of trait correlations. Biophysical (crop growth) model simulations are proposed as a complement to statistical QTL mapping for the interpretation of the nature of QEI and to investigate better methods for the dissection of complex traits into component traits and their genetic controls.

PMID:
20137999
[PubMed - indexed for MEDLINE]
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