Data from: The shape of aroma: Measuring and modeling citrus oil gland distribution

From preventing scurvy to being part of religious rituals, citrus are
intrinsically connected to human health and perception. From tiny
mandarins to head-sized pummelos, citrus capability of hybridization
provides a vastly diverse array of fruit sizes and shapes, which in turn
corresponds to a diversity of flavors and aromas. These sensory qualities
are tightly linked to oil glands in the citrus skin. The oil glands are
also key to understanding fruit development, and the essential oils
contained by them are fundamental in the food and perfume industries. We
study the shape of citrus based on 3D X-ray CT scan reconstruction of 163
different citrus samples comprising 58 different species and cultivars,
including samples of all fundamental citrus species. First, using the
power of X-rays and image processing, we are able to compare and contrast
size ratios between different tissues, such as the size of the skin
compared to the rind or the flesh. Second, we model the fruit shape as an
ellipsoidal surface, and later we study and infer possible oil gland
distributions on this surface using principles of directional statistics.
We finally compare and contrast these overall fruit shape models along
their gland distributions across different citrus species. This
morphological modeling will allow us later to link genotype with
phenotype, furthering our insight on how the physical shape is genetically
specified in DNA.