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Scientists Discover Secrets of Coffee

An international team of researchers has created a sequence, or map, of the genes of the coffee plant known as Robusta. About one-third of the coffee drunk worldwide comes from this plant.
The researchers call coffee “the irresistible bean that delivers the most widely consumed psychoactive drug in the world.”
Researchers hope to use the map they created to make changes to the plant’s genes.
The researchers were surprised to discover the genes for caffeine. They discovered coffee’s caffeine genes are not linked to the caffeine genes in the cacao tree. Cacao beans are used to make chocolate.
With the new gene map, researchers say they may be able to develop plants that can survive climate change. They may also be able to create a coffee plant that does not have caffeine. The researchers say that would let growers and coffee makers produce coffee that tastes better than the kind that has the caffeine removed.
We drink 2.5 billion cups of coffee every day. Coffee is the main agricultural crop in many tropical countries.
The genetic map of the coffee plant Robusta was published in the journal Science. The researchers say the plant “joins a long list of crop species that have been sequenced using ever-improving” computer programs.  
I’m Christopher Cruise.
VOA health correspondent Jessica Berman reported this story from Washington. Christopher Cruise wrote it for Learning English. Jeri Watson edited it. 
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Words in This Story

psychoactive – adj. having an effect on the brain; used to describe the effects of a drug     
plant - v. to put into the ground to grow; n. a living growth from the ground which gets its food from air, water and earth
map - n. a picture of the earth’s surface or a part of it
discover - v. to find or learn something
produce - v. to make; to create; to cause something to be; to manufacture
crop(s) - n. plants that are grown and gathered for food, such as grains, fruits and vegetables

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Un equipo internacional de investigadores ha creado una secuencia, o el mapa, de los genes de la planta de café sabida(conocida) como Robusta. Aproximadamente un tercio del café bebió [bebido]por todo el mundo viene de esta planta...

Los investigadores llaman el café " el frijol irresistible que entrega la medicina(droga) el [la] más extensamente consumida psicoactiva en el mundo. "

Los investigadores esperan usar el mapa que ellos crearon para hacer cambios a los genes de la planta.

Los investigadores esperan usar el mapa que ellos crearon para hacer cambios a los genes de la planta.

Los investigadores estuvieron sorprendidos de descubrir los genes para la cafeína. Ellos descubrieron que los genes de cafeína del café no son unidos para los genes de cafeína en el árbol de cacao. Los frijoles de cacao son usados para hacer el chocolate

Bebemos 2.5 mil millones de tazas del café cada día. El café es la cosecha principal agrícola en muchos países tropicales.

El mapa genético de la planta de café Robusta fue publicado en el diario la Ciencia. Los investigadores dicen que la planta " une una lista larga de especie de cosecha que ha sido la utilización ordenada alguna-vez-mejorando " programas del ordenador.




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