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Kernels of history


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Earlier this year Douglas J. Kennett, a UC Santa Barbara professor of anthropology, demonstrated that maize, or corn, became a staple crop in the Americas 4,700 years ago. It turns out he was just beginning to tell the story of the world s biggest grain crop.
In a new paper in the
Proceedings of the National Academy of Sciences, Kennett and his co-authors report that by analyzing the genomes of ancient maize they are able to fill in some of the gaps in the 9,000-year-old history of corn, which was first partially domesticated in southwestern Mexico and spread through Central and South America fairly rapidly. ....

El Gigante , United States , Richard George , Alejandra Domic , Andres Bergstr , Heather Thakar , Douglasj Kennett , Robin Allaby , Kenneth Hirth , Logan Kistler , Santa Barbara , Thomas Harper , Amber Vanderwarker , University Of Warwick , Texasam University , Proceedings Of The National Academy Sciences , Francis Crick Institute , Penn State University , Smithsonian National Museum Of Natural History , National Academy , South America , Central American , Indigenous South Americans , Central America , National Museum , Natural History ,

How Ancient DNA Unearths Corn's A-maize-ing History | Smithsonian Voices | National Museum of Natural History


December 14th, 2020, 3:00PM
/ BY
Erin Malsbury
Sequencing entire genomes from ancient tissues helps researchers reveal the evolutionary and domestication histories of species. (Thomas Harper, The Pennsylvania State University)
In the early 2000s, archeologists began excavating a rock shelter in the highlands of southwestern Honduras that stored thousands of maize cobs and other plant remains from up to 11,000 years ago. Scientists use these dried plants to learn about the diets, land-use and trading patterns of ancient communities.
After years of excavations, radiocarbon dating and more traditional archaeological studies, researchers are now turning to ancient DNA to provide more detail to their insights than has ever before been possible. ....

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Detour Through S. America Brought Maize to the Mexican Table


New analysis of ancient maize DNA gives insight into how the crop spread through Central and South America. (Photo by Douglas J. Kennett via Courthouse News)
(CN) New archaeological research directly ties a signature American crop to the story of how ancient human populations grew and spread over time. 
By studying the genome of maize crops, researchers have discovered new details about how maize moved between Central and South America thousands of years ago. 
Maize was first cultivated in southwestern Mexico some 9,000 years ago, derived from an annual grass called teosinte. As domestication continued, it spread into South America around 2,000 years later. ....

El Gigante , United States , Logan Kistler , Douglasj Kennett , Proceedings Of The National Academy Sciences , Smithsonian National Museum Of Natural History , Courthouse News , South America , Central America , National Academy , Central American , South American , National Museum , Mopan Maya , Santa Cruz , எல் ஜிகாண்டே , ஒன்றுபட்டது மாநிலங்களில் , லோகன் கிஸ்ட்லர் , ஸ்மித்சோனியன் தேசிய அருங்காட்சியகம் ஆஃப் இயற்கை வரலாறு , நீதிமன்றம் செய்தி , தெற்கு அமெரிக்கா , மைய அமெரிக்கா , தேசிய கலைக்கழகம் , மைய அமெரிக்கன் , தெற்கு அமெரிக்கன் , தேசிய அருங்காட்சியகம் ,