Flowers' wings, fruitflies' petals

Article Abstract:

Studies in Antirrhinum (snapdragon) and Drosophila (fruit fly) indicate that similar mechanisms may be at work in determining how the organism's final form (in this case, petal shape and wing shape) are determined. The new studies show that controlling just a few parameters can control the final tissue shape, based on a simple dynamic model based on classical clonal analysis.

Botany, Plant morphology, Morphology (Animals), Animal morphology, Embryo

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Stochastic spineless expression creates the retinal mosaic for color vision

Article Abstract:

It is reported that the Drosophila dioxin receptor Spineless is both necessary and sufficient for the formation of the ommatidial mosaic in the retina responsible for color vision. It is suggested that the entire retinal mosaic is defined by the stochastic expression of the single transcription factor, Spineless.

Pesticide and Other Agricultural Chemical Manufacturing, Agricultural chemicals, not elsewhere classified, Dioxin, Genetic aspects, Dioxins, Stochastic processes, Color vision, Colour perception

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Orchestrating size and shape during morphogenesis

Article Abstract:

The important findings from Drosophila model which provides insight into the mechanisms of tissue growth and shape and their coordination at the cellular and tissue levels is reviewed.

Physiological aspects, Growth, Drosophila, Morphogenesis, Cell division, Company growth, Apoptosis

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