Where are cacao plants native?
7089#23
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 was gradually transported by humans throughout South and Central America. Early forms of another genotype have also been found in what is now Venezuela. The scientific name, "Theobroma", means "food of the gods". The fruit, called a cacao pod, is ovoid, long and wide, ripening yellow to orange, and weighing about when ripe.
Chocolate
57947#5
The generic name is derived from the Greek for "food of the gods"; from θεός ("theos"), meaning "god", and βρῶμα ("broma"), meaning "food". The specific name "cacao" is the Hispanization of the name of the plant in indigenous Mesoamerican languages. The cacao was known as "kakaw" in Tzeltal, K'iche' and Classic Maya; "kagaw" in Sayula Popoluca; and "cacahuatl" in Nahuatl as "bean of the cocoa-tree".
"T. cacao" is widely distributed from southeastern Mexico to the Amazon basin. There were originally two hypotheses about its domestication; one said that there were two foci for domestication, one in the Lacandon Jungle area of Mexico and another in lowland South America. More recent studies of patterns of DNA diversity, however, suggest that this is not the case. One study sampled 1241 trees and classified them into 10 distinct genetic clusters. This study also identified areas, for example around Iquitos in modern Peru and Ecuador, where representatives of several genetic clusters originated more than 5000 years ago, leading to development of the variety, Nacional cocoa bean. This result suggests that this is where "T. cacao" was originally domesticated, probably for the pulp that surrounds the beans, which is eaten as a snack and fermented into a mildly alcoholic beverage. Using the DNA sequences and comparing them with data derived from climate models and the known conditions suitable for cacao, one study refined the view of domestication, linking the area of greatest cacao genetic diversity to a bean-shaped area that encompasses Ecuador, the border between Brazil and Peru and the southern part of the Colombian-Brazilian border. Climate models indicate that at the peak of the last ice age 21,000 years ago, when habitat suitable for cacao was at its most reduced, this area was still suitable, and so provided a refugium for the species.
Theobroma cacao
57947#0
Theobroma cacao, also called the cacao tree and the cocoa tree, is a small ( tall) evergreen tree in the family Malvaceae, native to the deep tropical regions of the Americas. Its seeds, cocoa beans, are used to make chocolate liquor, cocoa solids, cocoa butter and chocolate.
Theobroma cacao
54229#5
Cacao trees grow in a limited geographical zone, of about 20° to the north and south of the Equator. Nearly 70% of the world crop today is grown in West Africa. The cacao plant was first given its botanical name by Swedish natural scientist Carl Linnaeus in his original classification of the plant kingdom, where he called it "Theobroma" ("food of the gods") "cacao".
Cocoa bean
1886671#8
Pottery samples recovered from sites in modern Southwestern United States and Northwestern Mexico have tested positive for the ratio of methylxanthines associated with those produced by "Ilex vomitoria". The same study also identified methylxanthines ratios associated with "Theobroma cacao". Neither plants are native to the areas from which the pottery samples were recovered, which suggests trading between areas where those plants are native. The chemical analysis also suggests a possible increase in drinks prepared from cacao after the year 1200, and a decrease in the use of drinks prepared from "Ilex vomitoria". Freshwater shells from Texas and Arkansas have been recovered from Pueblo Bonito, which have been used as possible evidence for the trade of "Ilex vomitoria" from the east. There are also some stands of "Ilex vomitoria" in Mesoamerica, so the exact origins of the "Ilex vomitoria" used to prepare the drinks is currently unknown.
Black drink
6693851#2
Cultivation, consumption, and cultural use of cacao were extensive in Mesoamerica where the cacao tree is native. When pollinated, the seed of the cacao tree eventually forms a kind of sheath, or ear, 20" long, hanging from the tree trunk itself. Within the sheath are 30 to 40 brownish-red almond-shaped beans embedded in a sweet viscous pulp. While the beans themselves are bitter due to the alkaloids within them, the sweet pulp may have been the first element consumed by humans.
History of chocolate
54454066#6
The cacao plant was primarily brought to the Philippines in the 1700s when a Spanish galleon from Mexico transported pure Criollo, considered to be one of the best kinds of cacao, from Mesoamerica to the Pacific. Although cacao trees were originally grown in Mexico and Central America, the Philippines became an ideal cultivation grounds for cacao because of its geography as a tropical rainforest located 10-15 degrees from the Earth's Equator, with the cacao belt located within 20 degrees of the Equator. Today, cacao trees are cultivated throughout equatorial region including the Caribbean, Africa, Southeast Asia, and the Pacific Islands of Samoa and New Guinea.
Chocolate industry in the Philippines
57947#23
The genome sequence enables cacao molecular biology and breeding for elite varieties through marker-assisted selection, in particular for genetic resistance to fungal, oomycete and viral diseases responsible for huge yield losses each year. In 2017–18, due to concerns about survivability of cacao plants in an era of global warming in which climates become more extreme 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 using CRISPR to adjust DNA for improved hardiness of cacao in hot climates.
Theobroma cacao
20581351#21
A cabruca is an agroforestry system found in the Latin American countries of Belize, Mexico, Ecuador, Peru, Costa Rica and Brazil. These cabrucas, largely run by smallholder farmers, are the production locations for cacao trees that grow underneath the canopy of mixed native trees. This forest canopy like the shade coffee has been found to provide a diverse ecosystem. An example of the biological importance of cabrucas can be found in Brazil’s main cacao production region Southern Bahia, Brazil. A 2008 study of biodiversity conservation in cacao regions found that the cabrucas in Southern Bahia are used by a significant amount of native flora and fauna. Due to parts of the region experiencing high deforestation and fragmentation, these cabrucas are providing habitat, fragment connection, and edge effect reduction. Another study in Costa Rica on the role of these cacao plantations in maintaining avian diversity found that the plantations do not substitute for a forest but do provide a home for a large number of avian generalist species.
Agroecology in Latin America
54454066#42
After the seeds are selected carefully from highly productive trees which pest-free and disease-free, seeds are planted immediately either “at stake”, controlled seed beds, pots, or nurseries before they are transplanted to plantations. When field soils are forest land with good organic matter, tillage is not necessary. However, if the cacao is to be planted with other cash crops, a more thorough preparation, which includes plowing and harrowing the land, is needed. Roads, drainage, and shade trees are also established. Based on studies about distancing, cacao is generally planted in the following: cacao laid in rows 2 meters apart if open areas, 2.5 meters away from the base if under coconut trees, close planting followed by thinning, or 3 by 3 meters or 3 by 4 meters apart.
Chocolate industry in the Philippines