Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

UA Researcher and Colleagues Discover the Birthplace of the Chili Pepper

23.04.2014

In the Southwest, the chili pepper is practically a dietary staple. It gives salsa a spicy crunch, it brings depth to Mexican sauces, and provides an extra kick to Sonoran hot dogs

Plenty of other world cuisines rely on it too, from China to India to Thailand. But Latin America, researchers have confirmed, is where it started. 

In a study of global significance, researchers have figured out where the first domesticated chili pepper crop was farmed. University of Arizona ethnobiologist and agroecologist Gary Nabhan and other researchers in the U.S., France and Kenya have determined that the plant was first cultivated in central-east Mexico, likely in the Valley of Tehuacán. 

The team's evidence indicates that the first cultivators of the chili pepper inhabited the area about 6,500 years ago. They were speakers of the Oto-Manguean language stock – an ethnic Mexican Indian language that makes up 174 different dialects.

The team's paper, "Multiple Lines of evidence for the Origin of Q:1 Domesticated Chili Pepper, Capsicum annuum, in Mexico," appears in the April 29 issue of the Proceedings of the National Academy of Sciences.

The article is part of a special series of research papers PNAS just published on different aspects of domestication, including plant and animal domestication.

Led by University of California, Davis, plant scientist Paul Gepts, the international team determined that the crop's region of origin extended from the area that is now southern Puebla and northern Oaxaca to southeastern Veracruz, and was further south than previously thought.

"Identifying the origin of the chili pepper is not just an academic exercise," said Gepts, lead author of another paper PNAS released in the series. "By tracing back the ancestry of any domesticated plant, we can better understand the genetic evolution of that species."

Nabhan, who holds the Kellogg Endowed Chair in Sustainable Food Systems and is a researcher at the UA Southwest Center, noted that this new knowledge "better equips us to develop sound genetic conservation programs." 

For the current study, the team employed a novel and innovative approach, using multiple lines of evidence to pinpoint where humans first cultivated the chili pepper. The team used two traditional investigative approaches, relying on archaeological and genetic data. 

The team's scientific methods and findings have important implications for understanding nutrition-related diseases, the use of crops for health-related benefits and crop production and resiliency into the future.

"Chilies are one of the most important spices in the world, and are an important part of our cultural legacy," Nabhan said.

"We are helping scientists all around the world to understand the ecological, cultural and historical relationships of something that affects anyone that uses chilies."

MEDIA CONTACTS:

Gary Nabhan

UA Southwest Center

520-621-2484

gpnabhan@email.arizona.edu

Paul Gepts

University of California, Davis

Department of Plant Sciences

530-752-7743

plgepts@ucdavis.edu

Gary Nabhan | UA News
Further information:
http://www.arizona.edu

More articles from Life Sciences:

nachricht Rainbow colors reveal cell history: Uncovering β-cell heterogeneity
22.09.2017 | DFG-Forschungszentrum für Regenerative Therapien TU Dresden

nachricht The pyrenoid is a carbon-fixing liquid droplet
22.09.2017 | Max-Planck-Institut für Biochemie

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: The pyrenoid is a carbon-fixing liquid droplet

Plants and algae use the enzyme Rubisco to fix carbon dioxide, removing it from the atmosphere and converting it into biomass. Algae have figured out a way to increase the efficiency of carbon fixation. They gather most of their Rubisco into a ball-shaped microcompartment called the pyrenoid, which they flood with a high local concentration of carbon dioxide. A team of scientists at Princeton University, the Carnegie Institution for Science, Stanford University and the Max Plank Institute of Biochemistry have unravelled the mysteries of how the pyrenoid is assembled. These insights can help to engineer crops that remove more carbon dioxide from the atmosphere while producing more food.

A warming planet

Im Focus: Highly precise wiring in the Cerebral Cortex

Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.

The researchers report online in Nature (Schmidt et al., 2017. Axonal synapse sorting in medial entorhinal cortex, DOI: 10.1038/nature24005) that synapses in...

Im Focus: Tiny lasers from a gallery of whispers

New technique promises tunable laser devices

Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...

Im Focus: Ultrafast snapshots of relaxing electrons in solids

Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!

When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...

Im Focus: Quantum Sensors Decipher Magnetic Ordering in a New Semiconducting Material

For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.

Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

“Lasers in Composites Symposium” in Aachen – from Science to Application

19.09.2017 | Event News

I-ESA 2018 – Call for Papers

12.09.2017 | Event News

EMBO at Basel Life, a new conference on current and emerging life science research

06.09.2017 | Event News

 
Latest News

Rainbow colors reveal cell history: Uncovering β-cell heterogeneity

22.09.2017 | Life Sciences

Penn first in world to treat patient with new radiation technology

22.09.2017 | Medical Engineering

Calculating quietness

22.09.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>