News tagged with domesticated plants
USDA links gene flow between weedy and domesticated rice to rising carbon dioxide levels
(Phys.org) -- New research at the U.S. Department of Agriculture (USDA) confirms that rising levels of atmospheric carbon dioxide facilitate the flow of genes from wild or weedy rice plants to domesticated ...
May 24, 2012 |
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Genetic markers for tracking species
At the supermarket checkout, hardly anybody enters prices manually anymore. Using scanners that can read the barcodes is much faster. Biologists now want to use a similar procedure for identifying domestic animal and plant ...
Apr 25, 2012 |
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Pod corn develops leaves in the inflorescences
In a variant of maize known as pod corn, or tunicate maize, the maize kernels on the cob are not 'naked' but covered by long membranous husks known as glumes. According to scientists from the Max Planck Institute ...
Apr 24, 2012 |
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Ancient Egyptian cotton unveils secrets of domesticated crop evolution
Scientists studying 1,600-year-old cotton from the banks of the Nile have found what they believe is the first evidence that punctuated evolution has occurred in a major crop group within the relatively short history of plant ...
Apr 02, 2012 |
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The establishment of genetically engineered canola populations in the US
Large, persistent populations of genetically engineered canola 1 have been found outside of cultivation in North Dakota. As genetically engineered crops become increasingly prevalent in the United States, concerns remain ...
Oct 05, 2011 |
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Swiss parliament approves nuclear plant phase out
The Swiss parliament's upper house on Wednesday approved plans to phase out the country's nuclear plants over the next two decades in the wake of the Fukushima disaster in Japan.
Technology / Energy & Green Tech
Sep 28, 2011 |
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Jumping gene enabled key step in corn domestication
Corn split off from its closest relative teosinte, a wild Mexican grass, about 10,000 years ago thanks to the breeding efforts of early Mexican farmers. Today it's hard to tell that the two plants were ever close kin: Corn ...
Sep 25, 2011 |
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Confirmed: Sunflower domesticated in US, not Mexico
New genetic evidence presented by a team led by Indiana University biology doctoral graduate Benjamin Blackman confirms the eastern United States as the single geographic domestication site of modern sunflowers. ...
Aug 15, 2011 |
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Where the wild veggies are: Cultivated cucumber and melon originated in Asia and Australia
Sites of origin and regions of domestication of many of our most important cultivated plants are still unknown. The botanical genus Cucumis, to which both the cucumber (Cucumis sativus) and the honeydew melon (C. melo) bel ...
Jul 20, 2010 |
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What plant genes tell us about crop domestication
Anyone who has seen teosinte, the wild grass from which maize (corn) evolved, might be forgiven for assuming many genetic changes underlie the transformation of one plant to the other.
Jul 07, 2010 |
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Dogs outdo humans at detecting rare noxious weed
(PhysOrg.com) -- A field test in Montana pitted dog against human in an effort to identify and eradicate spotted knapweed. This weed threatens the survival of native species and can bring about both economic and ecosystem ...
Jun 23, 2010 |
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Nanotechnology could help Arab region
"Nanotechnology could aid the future of development of the Arab region," says Mohamed H.A. Hassan, executive director of TWAS, the academy of sciences for the developing world, and president of the African Academy of Sciences. ...
Nanotechnology / Nanomaterials
Feb 21, 2010 |
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Hey squash, time for your close-up: Plants 'auditioned' before domestication
Humans likely 'auditioned' plants and animals that they eventually domesticated by first managing wild populations during a long transition period — sometimes thousands of years — that led from hunting-gathering ...
Feb 19, 2010 |
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Europe's first farmers replaced their Stone Age hunter-gatherer forerunners
(PhysOrg.com) -- DNA study suggests that further waves of prehistoric immigration are waiting to be discovered. Central and northern Europe's first farmers were immigrants with barely any ancestral ties to the modern population, ...
Other Sciences / Archaeology & Fossils
Sep 03, 2009 |
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A genome may reduce your carbon footprint
With the costs of genome sequencing rapidly decreasing, and with the infrastructure now developed for almost anyone with access to a computer to cheaply store, access, and analyze sequence information, emphasis is increasingly ...
May 12, 2009 |
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