This study aimed to identify regions in the Arabidopsis genome responsible for changes in flowering time, plant architecture, and reproductive output when grown at elevated carbon dioxide levels. The researchers used 108 recombinant inbred lines of Arabidopsis grown at 400 and 1000 ppm CO2 to measure flowering time and identify quantitative trait loci (QTL) through interval mapping. They detected two similar QTL between the CO2 levels and two QTL unique to elevated CO2, indicating genetic factors influencing the plant response. Current work involves analyzing how changes in flowering time affect seed production and isolating genomic regions tied to architectural and reproductive alterations at high CO2.