SCIENCE

Whole genome duplication shaped the evolution of the salmon family

A report published by Phys.org describes how changes in DNA can influence traits including disease resistance and reproduction, and examines whole genome duplication in the evolution of the salmon family. The supplied excerpt contrasts this large-scale genetic change with smaller mutations that alter a single DNA letter.

Illustrative photo · Photo by Nicola Narracci · Pexels

Evolution can be driven by changes in DNA that affect traits such as disease resistance or reproduction, according to a report published by Phys.org.

The report discusses whole genome duplication in the evolution of the salmon family. It contrasts that process with smaller genetic changes that modify a single letter in the DNA code.

THE QUESTIONS THIS EVENT LEAVES BEHIND

What conditions allowed whole genome duplication to shape the salmon family’s evolution?

Which traits changed after the duplication, and which did not?

How did researchers distinguish the effects of whole genome duplication from smaller DNA changes?

What evolutionary costs accompanied the duplicated genome?

Would the same process produce similar outcomes in other animal families?

YOUR QUESTION

Does this story leave you with another question?

Send us the question the report did not answer. It may become the next question IAQ investigates.

GLOBAL CURIOSITY MAP · AUGUST 2026

What Was the World Curious About That Month?

10 places and 10 questions from IAQ's monthly record of Science curiosity.

Colombia Why is Los Santos in Santander at the center of Colombia’s earthquake searches today? Canada What is the source of Toronto’s Legionnaires’ disease outbreak? Italy Why has interest in Ebola disease surged in Italy, and what does the evidence say about any epidemic risk? Japan Why is Japan’s high-cost medical expense system back in the spotlight? United States What is CTE, and how can it affect football players’ brains? South Korea Why is cholesterol attracting renewed public attention in South Korea? Mexico What will the partial lunar eclipse around August 28, 2026, look like from Mexico? Indonesia When and where can people in Indonesia see the next eclipse? Netherlands When will the 2026 lunar eclipse be visible from the Netherlands, and what will it look like? New Zealand Why is there concern about an influenza A surge in New Zealand?

Explore the Full Global Curiosity Map

29 September 2026 · 10:53 · 1 sources

Sources

Phys.org — Whole genome duplication shaped the evolution of the salmon family