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05/10/2018

Salmon spawn fierce debate over protecting endangered species, thanks to a single gene

External Link - Source: Science

They concluded that the genetic change that produced spring-run Chinook occurred only once in the species’s history. And new data published on 29 April on bioRxiv show that in rivers where spring runs disappeared decades ago, less than 1% of the remaining fish carry a copy of the early migration version of the gene. The scarcity of that gene makes it very unlikely a spring run will reappear once lost.

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