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Review
. 2014 Apr;18:37-43.
doi: 10.1016/j.pbi.2014.01.002. Epub 2014 Feb 21.

Genetic Architecture of Naturally Occurring Quantitative Traits in Plants: An Updated Synthesis

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Review

Genetic Architecture of Naturally Occurring Quantitative Traits in Plants: An Updated Synthesis

Carlos Alonso-Blanco et al. Curr Opin Plant Biol. .

Abstract

Deciphering the genetic and molecular bases of quantitative variation is a long-standing challenge in plant biology because it is essential for understanding evolution and for accelerating plant breeding. Recent multi-trait analyses at different phenotypic levels are uncovering the pleiotropy and the genetic regulation underlying high-level complex traits. Thus, the number of known causal loci, genes and nucleotide polymorphisms is expanding. Current plant causal catalogs contain ∼400 genes and natural polymorphisms revealing several dysfunctional allelic series that involve multiple mutations. In addition, repeated evolution of quantitative traits mediated by large effect alleles is found across plant phylogeny. Finally, systematic analyses of genetic and environmental interactions are beginning to elucidate the molecular mechanisms of relevant interactions.

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