alt Hacker NewsIt's amazing that it only takes centuries. Under natural selection, species traits stay relatively stable for thousands or even millions of years.
I suppose that means natural selection tends to have more of a pronounced effect when there has been a severe environmental change that wipes out a large fraction of the population and leaves behind only those with adaptive mutations. Otherwise, the adaptive mutation stays in the population but doesn't proliferate excessively. Selective breeding can then be interpreted as an extreme version of environmental stress.
I had previously imagined that evolution was a slow process but it seems that its more of a punctuated equilibrium, where when changes occur they occur quickly.
(Caveat: not a biologist, just a layperson speculating and learning.)
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I'm just glad this only applies to plants, and possibly animals, and not humans.
It doesn't "take" centuries, it's just been going on for centuries. You can probably develop a very unique cultivar in a single lifetime. This is quite common in the horticultural industry and is especially feasible with weedy species like Brassicas
And the stability of the traits is mostly due to careful management. Most of these vegetables will very easily hybridize
In the Andes there are still traditional farmers that maintain over 300 varieties of potatoes. Each one has a name and a history. Some are only ornamental, some are only eaten in soups, some are medicinal, some are a bright purple, some are extremely long, some look like giant pinecones. Just look at the incredible images in this article
https://www.theguardian.com/environment/2019/nov/29/how-peru...