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Type: Journal article
Title: Adult plant development in triticale (× triticosecale wittmack) is controlled by dynamic genetic patterns of regulation
Author: Würschum, T.
Liu, W.
Alheit, K.
Tucker, M.
Gowda, M.
Weissmann, E.
Hahn, V.
Maurer, H.
Citation: G3, 2014; 4(9):1585-1591
Publisher: Genetics Society America
Issue Date: 2014
ISSN: 2160-1836
Statement of
Tobias Würschum, Wenxin Liu, Katharina V. Alheit, Matthew R. Tucker, Manje Gowda, Elmar A. Weissmann, Volker Hahn and Hans Peter Maure
Abstract: Many biologically and agronomically important traits are dynamic and show temporal variation. In this study, we used triticale (× Triticosecale Wittmack) as a model crop to assess the genetic dynamics underlying phenotypic plasticity of adult plant development. To this end, a large mapping population with 647 doubled haploid lines derived from four partially connected families from crosses among six parents was scored for developmental stage at three different time points. Using genome-wide association mapping, we identified main effect and epistatic quantitative trait loci (QTL) at all three time points. Interestingly, some of these QTL were identified at all time points, whereas others appear to only contribute to the genetic architecture at certain developmental stages. Our results illustrate the temporal contribution of QTL to the genetic control of adult plant development and more generally, the temporal genetic patterns of regulation that underlie dynamic traits.
Keywords: dynamic QTL; plant development; genetic architecture; triticale; complex traits; genome-wide association study (GWAS); high-density genotyping; Multiparent Advanced Generation Inter- Cross (MAGIC;) multiparental populations; MPP
Rights: Copyright © 2014 Würschum et al. This is an open-access article distributed under the terms of the Creative Commons Attribution Unported License ( by/3.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
RMID: 0030015643
DOI: 10.1534/g3.114.012989
Appears in Collections:Agriculture, Food and Wine publications

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