RT Journal Article SR Electronic T1 Ambient temperature and genotype differentially affect developmental and phenotypic plasticity in Arabidopsis thaliana JF bioRxiv FD Cold Spring Harbor Laboratory SP 017285 DO 10.1101/017285 A1 Carla Ibañez A1 Yvonne Poeschl A1 Tom Peterson A1 Julia Bellstädt A1 Kathrin Denk A1 Andreas Gogol-Döring A1 Marcel Quint A1 Carolin Delker YR 2017 UL http://biorxiv.org/content/early/2017/03/13/017285.abstract AB Background Global increase in ambient temperatures constitute a significant challenge to wild and cultivated plant species. Forward genetic analyses of individual temperature-responsive 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 is still scarce and fragmented at best.Results 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 genotype and temperature differentially affected plant growth and development with variing strengths. Furthermore, overall correlations among phenotypic temperature responses was relatively low which seems to be caused by differential capacities for temperature adaptations of individual accessions.Conclusion 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.