Mouflon vignei" (or "orientalis") "arkal" and "O. v./o. bochariensis", grouped with two different clades of argali ("Ovis ammon"). The ancestral sheep is presumed to have had 60 chromosomes, as in goats ("Capra"). Mouflon and domestic sheep have 54 chromosomes, with three pairs (1+3, 2+8, 5+11) of ancestral acrocentric chromosomes joined to form bi-armed chromosomes. This is in contrast to the argali and urial, which have 56 and 58 chromosomes respectively. If the urial is as closely related to the mouflons as mitochondrial DNA indicates, then two chromosomes would need to have split during its evolution away from the mouflon (sub)species. In
Domesticated plants of Mesoamerica Domesticated plants of Mesoamerica Domesticated plants of Mesoamerica, established by agricultural developments and practices over several thousand years of pre-Columbian history, include "maize" and "capsicum". A list of Mesoamerican cultivars and staples: Maize was domesticated in Western Mexico and Mesoamerican cultures expanded wherever it was cultivated. It became widespread in the Late Archaic Period and was grown wherever conditions allowed. The early use of maize focused on the consumption of unripened kernels. Before people settled into villages and began farming, the amount of time it took to invest in maize was too great. The output of wild maize did not