PT - JOURNAL ARTICLE AU - Carla Ibañez AU - Yvonne Poeschl AU - Tom Peterson AU - Julia Bellstädt AU - Kathrin Denk AU - Andreas Gogol-Döering AU - Marcel Quint AU - Carolin Delker TI - Developmental and phenotypic plasticity of <em>Arabidopsis thaliana</em> accessions across an ambient temperature range AID - 10.1101/017285 DP - 2016 Jan 01 TA - bioRxiv PG - 017285 4099 - http://biorxiv.org/content/early/2016/06/13/017285.short 4100 - http://biorxiv.org/content/early/2016/06/13/017285.full AB - Global increase in ambient temperatures constitute a significant challenge to wild and cultivated plant species. Forward genetic analyses of isolated model temperature traits have resulted in the identification of several signaling and response components. However, a comprehensive knowledge about temperature sensitivity of different developmental stages and the contribution of natural variation therein is still scarce and fragmented at best. Here, we systematically analyze thermomorphogenesis throughout a complete life cycle in ten natural Arabidopsis thaliana accessions grown in four different temperatures ranging from 16 to 28 °C. We used Q10, GxE, phenotypic divergence and correlation analyses to assess temperature sensitivity and genotype effects of more than 30 morphometric and developmental traits representing five phenotype classes. We found that developmental timing throughout the vegetative phase was primarily sensitive to temperature with only limited genotype effects indicating primarily thermodynamic effects and/or conserved regulation. Phenotypes associated with reproduction and various quantitative growth traits, however, were often sensitive to both genotype and temperature effects. Genotype-specific temperature responses may be attractive targets for future forward genetic approaches and accession-specific thermomorphogenesis maps may aid the assessment of functional relevance of known and novel regulatory components.Highlight Comprehensive profiling of temperature responses in Arabidopsis reveals differential genotype and temperture effects on morphometric phenotypes and on vegetative and reproductive development.