Featured: FIGS

Jacob has an idea why using climate data won’t always make the haystack smaller:

To me, the potato results mean that we shouldn’t be looking at selection, but at migration and drift. Selection reduces diversity, migration and drift determine where it goes.

Featured: smaller haystacks

Nigel on reducing the size of the haystack:

The case of potatoes is very interesting indeed, but is it typical? There are numerous papers showing that using ecogeography as a predictor of patterns of genetic diversity does not always work, but ecogeography is still widely used because in the absence of clear genetic diversity or characterisation/evaluation data there is practically no alternative.

Practically no alternative, or no practical alternative? There is a difference.

Featured: Genetic erosion

Jacob again, this time on genetic erosion:

Interesting! I have done some digging in this direction. I found that farmers were actually quite conscious about losses, knew the characteristics of the older varieties, but were not regretful about their loss, as these varieties were not resistant to certain diseases…

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