title: Mapping dynamic QTL for plant height in triticale.
abstract: BACKGROUND
  Plant height is a prime example of a dynamic trait that changes constantly throughout adult development. In this study we utilised a large triticale mapping population, comprising 647 doubled haploid lines derived from 4 families, to phenotype for plant height by a precision phenotyping platform at multiple time points.
  
  
  RESULTS
  Using multiple-line cross QTL mapping we identified main effect and epistatic QTL for plant height for each of the time points. Interestingly, some QTL were detected at all time points whereas others were specific to particular developmental stages. Furthermore, the contribution of the QTL to the genotypic variance of plant height also varied with time as exemplified by a major QTL identified on chromosome 6A.
  
  
  CONCLUSIONS
  Taken together, our results in the small grain cereal triticale reveal the importance of considering temporal genetic patterns in the regulation of complex traits such as plant height.
authors.affiliation: State Plant Breeding Institute, University of Hohenheim, Stuttgart 70599, Germany. tobias.wuerschum@uni-hohenheim.de.
authors.forename: Tobias
authors.initials: T
authors.lastname: Würschum
authors.forename: Wenxin
authors.initials: W
authors.lastname: Liu
authors.forename: Lucas
authors.initials: L
authors.lastname: Busemeyer
authors.forename: Matthew R
authors.initials: MR
authors.lastname: Tucker
authors.forename: Jochen C
authors.initials: JC
authors.lastname: Reif
authors.forename: Elmar A
authors.initials: EA
authors.lastname: Weissmann
authors.forename: Volker
authors.initials: V
authors.lastname: Hahn
authors.forename: Arno
authors.initials: A
authors.lastname: Ruckelshausen
authors.forename: Hans Peter
authors.initials: HP
authors.lastname: Maurer
mesh_terms: D002874:Chromosome Mapping; D002523:Edible Grain / Q000235:genetics*; D004843:Epistasis, Genetic; D005838:Genotype; D010641:Phenotype; D040641:Quantitative Trait Loci