Heritability of temperature-mediated flower size plasticity in Arabidopsis thaliana

• DOI: 10.1017/qpb.2023.3
• Publication Date: 2023-03-21T10:57:34Z
• Authors: Gregory M. Andreou; Michaela Messer; Hao Tong; Zoran Nikoloski; Roosa A. E. Laitinen
• Keywords: Trait; Inheritance; Genetic architecture

Phenotypic plasticity is a heritable trait that provides sessile organisms strategy to rapidly mitigate negative effects of environmental change. Yet, we have little understanding the mode inheritance and genetic architecture in different focal traits relevant agricultural applications. This study builds on our recent discovery genes controlling temperature-mediated flower size Arabidopsis thaliana focuses dissecting combining ability context plant breeding. We created full diallel cross using 12 A. accessions displaying plasticities, scored as fold change between two temperatures. Griffing's analysis variance indicated non-additive action shapes this pointed at challenges opportunities when breeding for reduced plasticity. Our findings provide an outlook important developing resilient crops future climates.