E. Axel Gorostiza

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Testing CaLexA

on Monday, October 30th, 2017 1:32

Here I used the CaLexA tool with the elav driver, and reared the flies on constant darkness or under L-D cycles.

L-D Cycle


OA and photopreference

on Monday, October 16th, 2017 2:14

Here I tested two common OA drivers in photopreference. Although the results are not conclusive, there could be something there.

Yellow: 25°C

Green: 32°C



on Monday, October 9th, 2017 2:28


TH activity in Photopreference

on Monday, October 2nd, 2017 11:12

This is a new try to set up the CaLexA technique.

TH-CaLexA L-D 12:12 Without Wings

TH: Magenta

GFP: Green

Sensory input and photopreference

on Monday, September 11th, 2017 11:41

To begin studying the sensory input related to photopreference shift after wing clipping, I decided to test some propioception mutants. Here are the first results.

Green: Intact flies

Yellow: Wing-clipped flies

Optogenetics (Blue and UV light in photopreference)

on Monday, September 4th, 2017 2:02


Optogenetics and photopreference

on Monday, July 24th, 2017 10:39

I am still trying to set up the optogenetics tools for my photopreference assay. These are the results so far. I combined the result obtained with Chrimson in the second chromosome and in the X chromosome, because they were identical.

Blue: only blue light.

Red: Blue light + pulsed red light.



I think Chrimson is already activated under my blue light condition.


Photopreference and optogenetics

on Monday, July 17th, 2017 2:57

Photopreference and Speed


This is something we talk last week. Here are the results for Speed and Stripe Deviation in the Buridan.


Optogenetics in Photopreference (Pretests)

on Monday, July 10th, 2017 12:31

On this opportunity, I changed the size of the tubes in order to see if that has a impact on the proportion of flies that ended in the elevator.