Kei Jokura
@kei-jokura.bsky.social
80 followers 130 following 2 posts
Postdoc who loves #cilia and #ctenophores! Currently, NIBB and ExCELLS in Japan. Before that, Jekely-lab at LSI_Exeter in the UK.
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kei-jokura.bsky.social
Our latest preprint is out!
www.biorxiv.org/content/10.1...

How do #ctenophores control their sense of balance "without a brain"?

We used connectomics to uncover the neural network behind their gravity sensing!
Reposted by Kei Jokura
jekely.biologists.social.ap.brid.gy
At long last, the version of record of our paper on the #platynereis #connectome

"Whole-body connectome of a segmented annelid larva" is out.

Explore the rich online presentation with all the videos, figures and source data here:

https://doi.org/10.7554/eLife.97964

@eLife
@biology […]
Original post on biologists.social
biologists.social
Reposted by Kei Jokura
jekely.biologists.social.ap.brid.gy
With a related Insight piece written by Alex Winsor and Paul Katz
"Connectomes: The wiring diagram of an entire animal"

https://elifesciences.org/articles/108573

@eLife
A phylogenetic tree for bilaterally symmetric animals.

Whole-body connectomes have been constructed for just three species (indicated by stars): the annelid P. dumerilii, the nematode C elegans, and the tunicate C. intestinalis. A whole-brain connectome has also been assembled for the insect D. melanogaster. Between them, these species span three major clades: Spiralia, Ecdysozoa and Deuterostomes. Only partial connectomes are available for molluscs and vertebrates.
Reposted by Kei Jokura
jekely.biologists.social.ap.brid.gy
In our new preprint we describe the synaptic #connectome of the nerve net in the ctenophore gravisensory organ. https://www.biorxiv.org/content/10.1101/2025.06.26.661250v1 #biology #neuroscience #ctenophore #vem
Volume rendering of the ctenophore aboral organ reconstructed by volume EM, showing the gravisensory balancers and the four quadrants.
kei-jokura.bsky.social
#クシクラゲ の平衡器官を構成する900個の細胞のネットワークを3次元的に再構築し、重力センサーの神経回路からその制御機構の謎に迫りました。

重力センサーの動きを高速度カメラで撮影し、その同期・非同期パターンから、これまで謎に包まれていたクシクラゲの神経の機能に焦点を当てています。
kei-jokura.bsky.social
Our latest preprint is out!
www.biorxiv.org/content/10.1...

How do #ctenophores control their sense of balance "without a brain"?

We used connectomics to uncover the neural network behind their gravity sensing!
Reposted by Kei Jokura
nikkei-science.com
クシクラゲの融合
有櫛動物はクラゲに似たゼラチン質の海洋生物でクシクラゲとも呼ばれているが,マサチューセッツ州にあるウッズホール海洋生物学研究所の研究者は奇妙なものに気づいた。

尻が2つある個体がいたのだ。

日経サイエンス2025年4月号【SCOPE】
クシクラゲの融合〜日経サイエンス2025年4月号より|日経サイエンス
傷ついた複数の個体が1つになる 有櫛(ゆうしつ)動物はクラゲに似たゼラチン質の海洋生物でクシクラゲとも呼ばれているが,マサチューセッツ州にあるウッズホール海洋生物学研究所の研究者は奇妙なものに気づいた。尻が2つある個体が … 続きを読む →
www.nikkei-science.com
Reposted by Kei Jokura
pawelburkhardt.bsky.social
Neural Connectome of the Ctenophore Statocyst 🤩.

@kei-jokura.bsky.social, @jekely.biologists.social.ap.brid.gy team identify a new syncytial nerve net in older animals & differences in innervation patterns. Great collaboration & co-submission to bioRxiv. Exciting times! doi.org/10.1101/2025...
Reposted by Kei Jokura
shu-ji.bsky.social
Doing some preliminary PIV of a ctenophore with @kei-jokura.bsky.social
Reposted by Kei Jokura
friedrich-group.bsky.social
"Biophysics of Motile Cilia" Heraeus workshop: program online! Application deadline: 12.01.25. Topics: #axoneme #synchronization #navigation #ciliopathies ... Bad Honnef, Germany, 30.03.-02.04.2025 www.we-heraeus-stiftung.de/veranstaltungen/the-biophysics-of-motile-cilia-from-structure-to-function
Reposted by Kei Jokura
micromotility.bsky.social
Hello origins of eukaryotes enthusiasts! @jekely.biologists.social.ap.brid.gy and I are excited to announce an interdisciplinary discussion meeting in Heidelberg May 19-20! #protistsonsky

Places are strictly limited. Register here to avoid disappointment!
www.cos.uni-heidelberg.de/en/research-...