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Figure 1 | BMC Evolutionary Biology

Figure 1

From: Standing variation and new mutations both contribute to a fast response to selection for flowering time in maize inbreds

Figure 1

Description of the Selection Scheme. Selection was conducted independently for individuals derived from F252 and MBS in order to obtain an Early and a Late population from each original seed lot. At each generation, S1 families produced by the selfing of the 10 most early-flowering individuals (rectangles with light gray patterns) and the 10 most late-flowering individuals (rectangles with black patterns) of the previous generation are phenotypically evaluated. Hundred individuals per family were sown in a 4 randomized block design. Each block therefore encompasses 25 individuals of each family and contains individuals from the Early and the Late population, as well as a control plot (open rectangles with a dashed line). The same protocol was repeated over generations.

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