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 ...

You're stuck with your same old genome, but corals aren't

Some corals live to be hundreds, and even thousands, of years old. They were born with genes that were successful back in their parent's generation, so how can these old corals still be successful now? Especially in a changing ...

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 ...

'Supergene' wreaks havoc in a genome

The human genome is littered with "selfish genetic elements," which do not seem to benefit their hosts, but instead seek only to propagate themselves.

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 ...

Harmful genetic mutations may be less common than we thought

We are all mutants. Every characteristic that defines our species is the result of a genetic mutation somewhere in the history of evolution. And the same is true for every other organism on the planet. Yet more often than ...

Polygamous birds shown to have fewer harmful mutations

Bird species that breed with several sexual partners have fewer harmful mutations, according to a study led by the Milner Centre for Evolution at the University of Bath. The study, published in Evolution, shows for the first ...

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