Time for the second round of images from last year’s Woods Hole embryology course! Below you will find 4 fantastic images taken by students of the 2013 course. Choose the one you would like to see in the cover of Development by voting on the pole at the end of the post (you can see bigger versions by clicking on the images). The poll is set up to allow only one vote per person, so please stick to this rule to give all the images a fair chance!
Voting will close noon GMT on July the 30th.
1. Short-tailed fruit bat, Carollia perspicillata, at stage 20. This image was taken by Mary Colasanto (University of Utah) and Sophia Tintori (University of North Carolina).
2. Ovariole of a pupal stage Painted Lady (Vanessa cardui) butterfly stained with DAPI (blue, nuclei) and Phalloidin (red, F- actin). Imaged on a Zeiss LSM 780 confocal. This image was taken by Ezgi Kunttas-Tatli (Carnegie Mellon University) and Duygu Ozpolat (University of Maryland).
3. Mouse embryo at E14.5 days. Preserved with Bouin’s fixative and imaged using a Zeiss Discovery V12 and a SPOT Flex camera. Multiple focal planes were assembled using Helicon Focus software. This image was taken by Georgina Stooke-Vaughan (University of Sheffield).
4. “Zebrabow” zebrafish (Danio rerio) embryo 2 days post-fertilization. 4-Hydroxytamoxifen (4-OHT) administration at 24 hr post-fertilization, leading to ubiquitous expression of active Cre recombinase, and subsequent expression of GFP, RFP and CFP after recombination. Imaged on a Zeiss LSM 700 confocal. This image was taken by Brijesh Kumar (Indian Institute of Technology, Kanpur).