Marc Robinson-Rechavi · @marcrr
959 followers · 1795 posts · Server ecoevo.social

If you too like evolution, check our new tool to visualize the evolution of complex gene families, illustrated by the evolution of vertebrate red-sensitive visual opsins biorxiv.org/content/10.1101/20

#opsin #bioinformatics #matreex #smbe2023

Last updated 1 year ago

Marc Robinson-Rechavi · @marcrr
959 followers · 1793 posts · Server ecoevo.social

Marjorie Liénard: method to express invertebrate opsin proteins in vitro, allowing to show spectral shifts in opsins in butterflies, with notably 2 paralogs of LW providing differentiation in function between the dorsal and ventral parts of the eye pnas.org/doi/abs/10.1073/pnas.

#smbe2023 #opsin #geneduplication #paralog

Last updated 1 year ago

Gaspar Jekely · @jekely
366 followers · 1 posts · Server biologists.social

Our favourite now in the mammalian brain as a new tool!

"Here we ... found that the Platynereis dumerilii ciliary opsin ... is an efficient, versatile, light-activated bistable GPCR that can suppress synaptic transmission in mammalian neurons with high temporal precision in-vivo "

biorxiv.org/content/10.1101/20

#platynereis #opsin #optogenetic #neuroscience #gpcr

Last updated 1 year ago

Gaspar Jekely · @jekely
347 followers · 122 posts · Server qoto.org

These cells have highly ramified and express a ciliary 1. Mutant larvae lacking ciliary opsin 1 had smaller and disorganised sensory cilia and reduced pressure responses, confirming that the photoreceptors are the pressure sensors.
5/9

#opsin #Cilia

Last updated 2 years ago

Marc Robinson-Rechavi · @marcrr
801 followers · 886 posts · Server ecoevo.social

can be used for teaching, as here with the classical example of opsin evolution: notice the parallele loss of blue- and green-sensitive opsins in snakes and mammals, the duplications in frugivorous old-world primates, and the duplications and losses in fishes according to habitat.

#matreex #opsin #MolecularEvolution

Last updated 2 years ago

Matt Murphy · @MattMurphy
16 followers · 4 posts · Server ecoevo.social
Todd Oakley · @Ostratodd
288 followers · 71 posts · Server ecoevo.social

Hot off the press! Move over deep homology, what about ‘deep diversity’? We review the vast variation of visual system development and physiology.

mdpi.com/2073-4409/11/24/3966

#Evolution #complexity #opsin #eyes

Last updated 2 years ago