History, 08.07.2019 19:00 crtlq

How did cultivated american cotton originate? how did cultivated american cotton originate? from a robertsonian translocation of a new world cotton plant as an allotetraploid of two species of new world cotton plants as an amphidiploid between an old world and a new world species of cotton plant by gene duplication in old world cotton plants as an autotetraploid of old world cotton plants?

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