Researchers witness the emergence of a new gene in the lab

How do new genes appear? For more than a century, researchers have thought that, from time to time, new gene functions evolved after cells accidentally made a copy of one of their existing genes. According to this theory, ...

How sex pheromones diversify: Lessons from yeast

Many organisms including insects, amphibians and yeasts use sex pheromones for attracting individuals of the opposite sex, but what happens to sex pheromones as new species emerge? New research publishing January 22 in the ...

Evolutionary changes in the genetic code of yeasts

Yeasts are some of the most important microbes used in biotechnology. Saccharomyces cerevisiae, the type of yeast used for making bread and beer, is just one representative of more than 1,500 yeast species found around the ...

Nectar research sheds light on ecological theory

A sticky drop of nectar clinging to the tip of a hummingbird's beak drips into the next flower the bird visits. With that subtle change, the microbes within that drop are now in a new environment, teeming with other microbes. ...

Insects could help us find new yeasts for big business

Yeasts are tiny fungi - but they play key roles in producing everything from beer and cheese to industrial chemicals and biofuels. And now scientists are proposing a new approach that could help these industries find new ...

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