Chocolate lowland climate in the narrow band of latitudes where cacao is grown (20 degrees north and south of the equator), the commercial company Mars, Incorporated and the University of California, Berkeley are conducting genomic research in 2017–18 to improve the survivability of cacao plants in hot climates. Chocolate is made from cocoa beans, the dried and fermented seeds of the cacao tree ("Theobroma cacao"), a small, 4–8 m tall (15–26 ft tall) evergreen tree native to the deep tropical region of the Americas. Recent genetic studies suggest the most common genotype of the plant originated in the Amazon basin and
Arturo Gómez-Pompa y realidades. Bol. Soc. Bot. Mexico. 63: 33-41. Whikus, R., M. de la Cruz, L. Mota-Bravo, A. Gomez-Pompa. 1998. Genetic diversity and relationships of wild cacao (Theobroma cacao L.) in southern Mexico. Theoret. And Appl. Genet. 96: 621-627. Arturo Gómez-Pompa Arturo Gómez-Pompa (born 1934 in Mexico City) is a well-known tropical biologist who is currently a scientific advisor for the Tropical Research Center of the Universidad Veracruzana (CITRO) and a distinguished professor emeritus of botany at the University of California, Riverside. He made various notable contributions to the field of tropical ecology over the years through the creation of databases