Unprocessed cassava rootWIKIMEDIA COMMONS, DAVID MONNIAUX
The genetic diversity of the starchy crop known as manioc—which produces the edible root cassava, a staple of African diets—depends on more on human culture than one might have guessed. Specifically, the crop’s fate appears to be tied to the marriages of people within the small farming communities of Gabon, Africa, according to new research published today (October 31) in Proceedings of the National Academy of Sciences.
To decipher this bizarre relationship, Marc Delêtre of Trinity College Dublin and his colleagues collected manioc from 10 villages, genotyped the crops, and found that certain regions carried more genetic diversity than others. Specifically, the researchers found high levels of diversity in the southern part of the country, where women move to their husbands’ villages after marriage, bringing ...
