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
Peter Posnette Peter Posnette Peter Posnette (real name Adrian Frank Posnette) (11 January 1914 – 17 July 2004) was a British plant pathologist. He was born in the South Birmingham area and educated at Cheltenham Grammar School. He entered Christ's College, Cambridge to study zoology but then accepted a Colonial Agricultural Service research studentship in plant genetics. After studying at the Cambridge University School of Agriculture, he moved to the Imperial College of Tropical Agriculture in Trinidad to carry out a research project into the pollination of the cocoa tree (Theobroma cacao). In 1937 he moved to the Gold Coast as a