News tagged with plant evolution
Did climate change shape human evolution?
(Phys.org) -- As human ancestors rose on two feet in Africa and began their migrations across the world, the climate around them got warmer, and colder, wetter and drier. The plants and animals they competed ...
Other Sciences / Archaeology & Fossils
Apr 24, 2012 |
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Seed size is controlled by maternally produced small RNAs: research
Seed size is controlled by small RNA molecules inherited from a plant's mother, a discovery from scientists at The University of Texas at Austin that has implications for agriculture and understanding plant ...
Apr 11, 2012 |
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Scientists find identical DNA codes in different plant species
Analyzing massive amounts of data officially became a national priority recently when the White House Office of Science and Technology Policy announced the Big Data Research and Development Initiative. A multi-disciplinary ...
Apr 09, 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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'Lost' Darwin fossils rediscovered
A rare collection of fossils, including some collected by Charles Darwin, has been 'rediscovered' at the British Geological Survey (BGS).
Other Sciences / Archaeology & Fossils
Jan 17, 2012 |
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Butterfly legs 'taste' plants for egg laying: study
A species of butterfly uses its legs to taste plants to see which leaves offer its eggs the best chance of survival, Japanese scientists said Wednesday.
Nov 16, 2011 |
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Invasive false brome grass is spreading, but Oregon's insects are biting
After hiking in Oregon, a University of Oregon plant biologist suggests, people may want to brush off their shoes and comb through their dogs in an effort to curb the spread of an invasive grass that is expanding ...
Nov 15, 2011 |
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Epigenetic changes don't last
Jean-Baptiste Lamarck would have been delighted: geneticists no longer dismiss out of hand his belief that acquired traits can be passed on to offspring. When Darwin published his book on evolution, Lamarck's ...
Sep 20, 2011 |
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Nature reaches for the high-hanging fruit
In the first study of its kind, researchers have used tools of paleontology to gain new insights into the diversity of natural plant chemicals. They have shown that during the evolution of these compounds nature doesn't settle ...
Aug 16, 2011 |
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Speeding up evolution: Orchid epigenetics
Organisms adapt to their dynamic environment using various strategies. Ovidiu Paun, working at the Department of Systematic and Evolutionary Botany, investigates how marsh orchids adjust to and diffuse in ...
Jul 28, 2011 |
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The rise and rise of the flying reptiles
(PhysOrg.com) -- Pterosaurs, flying reptiles from the time of the dinosaurs, were not driven to extinction by the birds, but in fact they continued to diversify and innovate for millions of years afterwards.
Other Sciences / Archaeology & Fossils
Jul 06, 2011 |
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Errors in protein structure sparked evolution of biological complexity
Over four billion years of evolution, plants and animals grew far more complex than their single-celled ancestors. But a new comparison of proteins shared across species finds that complex organisms, including humans, have ...
May 18, 2011 |
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Plants and caterpillars make the same cyanide
(PhysOrg.com) -- With an amazing example of convergent evolution, Niels Bjerg Jensen of the University of Copenhagen published a report in Nature Communications discussing the bird's-foot trefoil plant and th ...
Apr 13, 2011 |
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Researchers pinpoint key events in ancient plant evolution
(PhysOrg.com) -- Researchers from the University of Florida and six other institutions have unlocked some of the key foundations for the evolution of seed and flowering plants.
Apr 13, 2011 |
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New plant species gives insights into evolution
A new University of Florida study shows when two flowering plants are crossed to produce a new hybrid, the new species' genes are reset, allowing for greater genetic variation.
Mar 17, 2011 |
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