Early breeding reduced harmful mutations in sorghum

When humans first domesticated maize some 9,000 years ago, those early breeding efforts led to an increase in harmful mutations to the crop's genome compared to their wild relatives, which more recent modern breeding has ...

Why haven't cancer cells undergone genetic meltdowns?

Cancer first develops as a single cell going rogue, with mutations that trigger aggressive growth at all costs to the health of the organism. But if cancer cells were accumulating harmful mutations faster than they could ...

Death by a thousand cuts? Not for small populations

We've all heard Darwin's theory described as favoring the fittest, but new research from Michigan State University shows that, at least in small populations, it's O.K. to not be the best.

New limits to functional portion of human genome reported

An evolutionary biologist at the University of Houston has published new calculations that indicate no more than 25 percent of the human genome is functional. That is in stark contrast to suggestions by scientists with the ...

Cassava is genetically decaying, putting staple crop at risk

For breeders of cassava, a staple food for hundreds of millions in the tropics, producing improved varieties has been getting harder over time. A team at Cornell used genomic analysis of cassava varieties and wild relatives ...

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