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Kazuhide Miyamoto

@miyamoto-evodevo.bsky.social

Postdoc | Evo-devo | fish fin development & evolution(→mayfly development & evolution) https://researchmap.jp/kazuhide_miyamoto?lang=en

2 Posts27 Follower61 Folgt
M. Brent Hawkins@homeobox.bsky.social · 2mo ago

Excited to share the final published version of our work on the evolution of dorsal-ventral patterning in fins and limbs, now up on @currentbiology.bsky.social In review we added new single LARM element deletions to assess their impact on dorsality. Take a look! 🔬🧪🐟🐁 www.cell.com/current-biol...

A scientific figure showing the phenotypic effects of removing individual enhancer elements from the LARM. On the left side of the image are schematic diagrams of the targeted deletions and on the right are fin skeletons showing altered anatomy.
M. Brent Hawkins@homeobox.bsky.social · last yr.

We take for granted that our hands have two sides and can articulate in an endless number of ways. But what about a fish’s fin? Can a fish know something “like the back of its fin,” or have its future told with a fin palm reading? Check out this bluetorial to find out 👇🧪🧬🐟 doi.org/10.1101/2025...

Schematics depicting the dorsal and ventral sides of fins and limbs
Marc Robinson-Rechavi@marcrr.ecoevo.social.ap.brid.gy · 2mo ago

Kazuhide Miyamoto: in fish evolution, ancestral scute developmental mechanisms were co-opted into fin rays, with both paleontological / morphological and transcriptomic evidence #EED2026 Some of the results published: https://doi.org/10.1038/s41467-026-69180-y

Actinotrichia-independent developmental mechanisms of spiny rays facilitate the morphological diversification of Acanthomorpha fish fins - Nature Communications

Fish fins are a good model for studying the evolutionary basis for morphological diversity. Here, they show that variation in cell distribution, signaling intensity, and ECM assembly all contribute to spiny ray diversification in Acanthomorpha fins.

nature.com

@jsdb1968.bsky.social · 4mo ago

カワハギでは棒状コラーゲンを使わないため、骨を作る細胞の配置が自在になりトゲトゲの棘条を作ることが示唆されました。この結果から「棒状コラーゲンを用いないという特徴」により、成長方向が制限されないことで自由で複雑な形への進化した可能性を示唆しました。宮本和英 www.sci.tohoku.ac.jp/news/2026033...

@jsdb1968.bsky.social · 4mo ago

魚類の「棘条」と呼ばれる鰭の骨格は、コバンザメの吸盤やアンコウの釣り竿のような多様な形態を持ちます、レインボーフィッシュを用いて、棘条の形成メカニズムを調べ、通常のヒレ骨格の形成には不可欠な棒状コラーゲンが、棘条の形成には使われていないことを発見しました。 www.nature.com/articles/s41...