Abstract
Most agronomic traits are determined by quantitative trait loci (QTL) and exhibit continuous distribution in natural or especially built segregating populations. The genetic architecture and the hereditary characteristics of these traits are much more complicated than those of oligogenic traits and need adapted strategies for deciphering. The model plant Arabidopsis thaliana is widely studied for quantitative traits, especially via the utilization of genetic natural diversity. Here we describe a QTL-mapping protocol for analyzing freezing tolerance after cold acclimation in this species, based on its specific genetic tools. Nevertheless, this approach can be applied for the elucidation of complex traits in others species.
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