Abstract
The mutant brevistylis of Oenothera (Onagraceae) is characterized mainly by malformations of the style and by female sterility. Morphological features of the style and stigmas, such as the length of the style and the number, size, and shape of the stigmatic lobes is very variable. The abscission layer between ovary and style is missing and the placenta with ovules is protruded into the style. An interpretation of the disturbances in development observed in the br/br homozygotes is presented. The primary influence of br on development is proposed to be a general delay in meristematic growth, followed by irregularities in the timing of morphogenetic events which in turn lead to the anomalies in morphology of style and stigmas.
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Sniezko, R., Harte, C. Influence of the gene brevistylis on development of the flower in Oenothera . Sexual Plant Reprod 7, 187–193 (1994). https://doi.org/10.1007/BF00228492
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DOI: https://doi.org/10.1007/BF00228492