Ecotypes used in thermal imaging, their subtractive leaf temperatures, and the latitudes and longitudes of their collection sites.

The relative subtractive leaf temperature was calculated as (change in leaf temperature of the ecotypes)/(change in leaf temperature of Col-0). The change in leaf temperature is the average of measurements from three different leaves in the subtractive images. Plants grown in a growth chamber were transferred to a growth cabinet (constant white light of 100 μmol m-2 s-1 at 22°C, 60% RH) equipped with an automatic CO2 control unit (FR-SP, Koito). Plants were subjected to 0 ppm CO2 for 1.5 h and then 700 ppm CO2 for 1 h. Thermal images were captured under each CO2 concentration using a thermography camera (TVS-8500, NEC/Avio). CS numbers refer to ABRC stock numbers. The latitude and longitude information was gathered from the Arabidopsis Information Resource web site.
(XLSX)