In this article, I aim to introduce the genetic basis of the color polymorphisms, and review recent progress in molecular mechanisms underlying the color vision and color formation in dragonflies. Keywords: dragonfly, opsin, color vision, molecular evolution Abstract Dragonflies are colorful and large. Dragonflies have a unique color vision that surpasses anything ever seen in the animal world.
They have four or five different opsins, allowing them to see colors beyond human visual capabilities, such as ultraviolet (UV) light. Here I introduce the recent topics of molecular mechanisms underlying color vision and color forma-tion in dragonflies. Complex wing color polymorphism is recognized among the two closely related Japanese Mnais species, presumably due to stepwise character dis.
Color vision and opsin gene diversity in dragonflies Many animals possess color vision, which increases the ability to recognize environments and organisms. This enhanced color vision helps dragonflies identify prey, mates, and territories with incredible precision. What appears to us as a plain green leaf might display intricate ultraviolet patterns to a dragonfly, like secret messages written in invisible ink.
The ability to see polarized light adds another dimension to their visual experience. A closer look at dragonflies' amazing eyesA close look at a dragonfly's compound eyes. (Credit: Dustin Iskandar / CC BY 2.0) All dragonfly species have excellent vision.
Each compound eye is comprised of several thousand elements known as facets or ommatidia. These ommatidia contain light sensitive opsin proteins, thereby functioning as the visual sensing element in the compound eye. But.
The visual display of these colors is crucial because dragonflies possess highly developed vision, allowing them to perceive subtle differences in color and pattern. Color intensity is also directly linked to territoriality, especially in males that defend specific stretches of water suitable for egg. Dragonflies have a unique and impressive vision that is considered to be faster than humans, with their large multifaceted eyes capable of detecting invisible colors.
Dragonflies including damselflies are colorful and large-eyed insects, which show remarkable sexual dimorphism, color transition, and color polymorphism. Recent comprehensive visual transcriptomics has unveiled an extraordinary diversity of opsin genes within the lineage of dragonflies. These opsin.
