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notes biology

Goldfish evo-devo

Kinya Ota’s Lab investigates the embryonic development and evolutionary biology of goldfish. Their YouTube channel has a great diversity of videos describing laboratory techniques, culture conditions, developmental time lapses, and a lot more. I’ve seen a few videos about fertilization and embryos, but I just found out that they’re doing a series on goldfish evo-devo! […]

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biology articles imaging music science

A Sea Biscuit’s Life turns fifteen

When I was finishing my master’s thesis, I created a video to summarize my findings and posted it online. I wanted to share the wonderful things I saw under the microscope—cells dividing, tissues folding, embryos spinning, larvae metamorphosing, juveniles crawling between sand grains. But I also wanted to convey the thrill I felt, seeing these […]

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biology articles imaging

Cephalic furrow thread

I published a cephalic furrow thread about our paper on Twitter and Mastodon. We recently updated the manuscript on bioRxiv. In addition to the tissue mechanics, this new version includes gene expression data comparing Drosophila with Clogmia, a fly that has no cephalic furrow… It gives us some hints about the patterning changes associated with […]

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notes biology

Cephalic furrow on bioRxiv

Our paper about the function of the cephalic furrow in the fruit fly is ready and now available as a preprint in bioRxiv! To access: https://doi.org/10.1101/2023.03.30.534554 P. S. Apart from the poem The Great Divide, I didn’t write much about the cephalic furrow here. But this will change.

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notes biology

Biology is exciting and informative

Biology is exciting and informative, giving us insight into the beauty of life. What we see with the microscope is the amazing developmental process by which form emerges out of unformed material. To watch an embryo develop is to see the life of a new individual emerge, gradually, stage by stage, from very simple material […]

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biology articles imaging

Mitotic waves and gastrulation in a fly embryo

Last year I published a snapshot of a mitotic wave in a fruit fly embryo. Here’s the video of that same embryo going through cleavage (nuclei divisions) and gastrulation (cell movements): Mitotic waves What you see at the beginning of the movie are the cycles of synchronous nuclei divisions. They happen in waves from the […]

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notes biology imaging science

Sea biscuits on Labocine

I’m pleased to announce that my short video A Sea Biscuit’s Life is now available on Labocine at https://www.labocine.com/films/a-sea-biscuits-life. The sea biscuits are joining the Science New Wave!

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biology notes

Platynereis or Spotify?

Every time I open Spotify, I see the pattern of engrailed expression in an early Platynereis larva. Once you see it, there is no turning back! Reference Prud’homme, B., de Rosa, R., Arendt, D., Julien, J.-F., Pajaziti, R., Dorresteijn, A. W. C., Adoutte, A., Wittbrodt, J., & Balavoine, G. (2003). Arthropod-like expression patterns of engrailed […]

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imaging biology notes

A mitotic wave

A mitotic wave traveling through an early #Drosophila #embryo #FlyFriday

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imaging articles code

ImageJ macro to synchronize and combine image stacks

When I film embryos under the microscope, some will be younger and some will be older than others—they are never in perfect synchrony. This is fine when watching the recordings of individual embryos, but becomes an issue when you want to watch two (or more) embryos developing side-by-side. In my case, I want to identify […]