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Stories tagged 'evolution'

Understanding HIV’s evolutionary past — and future

Studies of how the virus evolved and how it might change down the road could help researchers develop vaccines or cures for the infection

Nov. 20, 2017 | By Rachel Tompa / Fred Hutch News Service

At approximately 100 years old, HIV is a relatively recent arrival on the human virus scene. But its roots stretch back much farther. Understanding where the virus has come from can help us understand where it’s going — and how to stop it — say evolutionary biologists.

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'Wtf'? A gene that poisons its own host

Discovery of genes that divide two species in a simple fungus sheds light on complex evolutionary principles

June 20, 2017 | By Rachel Tompa / Fred Hutch News Service

In a new study, researchers describe a family of genes called "wtf" — and how they don't behave in the way you might expect.

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Of mutant flies, tangled sperm and the 'Mother's Curse'

Study in fruit flies identifies a mutation in mitochondria — the energy factories of our cells — that harms males but not females

Aug. 2, 2016 | By Rachel Tompa / Fred Hutch News Service

For the first time, evolutionary biologists at Fred Hutch have identified a "Mother's Curse" mutation - a genetic change harmful to males but not females - in animals. The mutation renders male fruit flies sterile but leaves female flies untouched.

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Why fish school

Study uncovers genetic link to social behavior in stickleback fish

June 17, 2016 | By Rachel Tompa / Fred Hutch News Service

A new study uncovers a genetic link to social behavior in stickleback fish.

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The plastic fantastic brain: Why losing one sense rewires others

Study finds worms that can’t feel are better smellers — and the phenomenon is reversible

Jan. 19, 2016 | By Dr. Rachel Tompa / Fred Hutch News Service

There’s a quirky phenomenon where people who lose one sense can gain near-super abilities in another. Now, a new study has found this sensory juggling also occurs in very simple animals and that the phenomenon is reversible.

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The sixth samurai: Finding a gene that divides one species from another

How six male flies — among more than 300,000 females — led to the discovery of an evolution-driving gene

Dec. 17, 2015 | By Dr. Rachel Tompa / Fred Hutch News Service

Researchers at Fred Hutch and the University of Utah have discovered a gene that divides one species of fruit fly from another, solving a century-old evolutionary riddle.

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