Adult Plant Development in Triticale (x Triticosecale Wittmack) Is Controlled by Dynamic Genetic Patterns of Regulation

被引：14

作者：

Wuerschum, Tobias ^{[1
]}

Liu, Wenxin ^{[2
]}

Alheit, Katharina V. ^{[1
]}

Tucker, Matthew R. ^{[3
]}

Gowda, Manje ^{[1
]}

Weissmann, Elmar A. ^{[4
]}

Hahn, Volker ^{[1
]}

Maurer, Hans Peter ^{[1
]}

机构：

[1] Univ Hohenheim, State Plant Breeding Inst, D-70599 Stuttgart, Germany

[2] China Agr Univ, Crop Genet & Breeding Dept, Beijing 100193, Peoples R China

[3] Univ Adelaide, ARC Ctr Excellence Plant Cell Walls, Urrbrae, SA 5064, Australia

[4] Saatzucht Dr Hege GbR Domane Hohebuch, D-74638 Waldenburg, Germany

来源：

G3-GENES GENOMES GENETICS | 2014年 / 4卷 / 09期

关键词：

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; QUANTITATIVE TRAIT LOCI; COMPLEX TRAITS; ASSOCIATION ANALYSIS; CROSS-VALIDATION; BIOMASS YIELD; QTL DETECTION; GROWTH-STAGES; DECIMAL CODE; WHEAT; VERNALIZATION;

D O I：

10.1534/g3.114.012989

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

Many biologically and agronomically important traits are dynamic and show temporal variation. In this study, we used triticale (x 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.

引用

页码：1585 / 1591

页数：7

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