Year: 2024
Type: article
Abstract: Trout surrogates could support single spawning salmon SPAWNINGImagine you're beside a rocky stream in the mountains and you see a clutch of fish eggs.You think they belong to salmon or trout, but you're not a fish expert and how different could they be, anyway?Turns out, pretty different!If they are chinook salmon eggs, they're probably orphans.Chinook salmon (Oncorhynchus tshawytscha) spawn once in freshwater streams after a substantial migration back from the ocean and then die.If they are rainbow trout eggs, their parents are probably around.Rainbow trout (Oncorhynchus mykiss) spawn in freshwater streams multiple times during their life.Why some salmonids are singlespawners and others are multiplespawners is not well understood.However, Goro Yoshizaki and colleagues at the Tokyo University of Marine Science and Technology and the University of Tsukuba, Japan, have uncovered a potential reason for this difference and it involves reproductive stem cells: the small but important cells that give rise to eggs and sperm.Outside JEB reports on the most exciting developments in experimental biology.The articles are written by a team of active research scientists highlighting the papers that JEB readers can't afford to miss.
Source: Journal of Experimental Biology
DOI: 10.1242/jeb.246620
Author: Michael William Country
Language: English
Subfield: Genetics
Domain: Life Sciences
Open Access status: bronze
OpenAlex ID: W4402448786