Phenotypic variation in herkogamy in different <i>A. thaliana</i> genotypes.

<p>Freshly opened flowers of Col-0 (<b>A</b>), weak phenotype of BRA (<b>B</b>), strong phenotype of BRA (<b>C</b>), SIM (<b>D</b>), F₁ hybrid of BRA and Col-0 (<b>E</b>), F₁ hybrid of SIM and Col-0 (<b>F</b>), and F₁ hybrid of SIM and BRA (<b>G</b>) under greenhouse conditions. Scale bar = 1 mm. (<b>H</b>) A flower of SIM showing weak approach herkogamy under natural conditions at high altitude. Parts of petals and sepals were removed to improve visibility in some flowers.