News tagged with gene flow
Wildflower colors tell butterflies how to do their jobs
(PhysOrg.com) -- The recipe for making one species into two requires time and some kind of separation, like being on different islands or something else that discourages gene flow between the two budding species.
Jan 09, 2011 |
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Complete Neanderthal genome yields insights into human evolution and evidence of interbreeding
After extracting ancient DNA from the 40,000-year-old bones of Neanderthals, scientists have obtained a draft sequence of the Neanderthal genome, yielding important new insights into the evolution of modern ...
May 06, 2010 |
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Looks can be deceiving: Lizards acquire the same camouflaging adaptation in different ways
(PhysOrg.com) -- Does it matter if nature solves the same problem multiple ways? A NSF-supported study of lizard populations in White Sands, New Mexico has helped researcher Erica Rosenblum of the University ...
Dec 30, 2009 |
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Genetic study unravels ancient links between African and European populations
Large numbers of people moved between Africa and Europe during recent and well-documented time periods such as the Roman Empire, the Arab conquest, and the slave trade, and genetic evidence of these migrations lives on in ...
Mar 26, 2012 |
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Continents influenced human migration, spread of technology
How modern-day humans dispersed on the planet and the pace of civilization-changing technologies that accompanied their migrations are enduring mysteries. Scholars believe ancient peoples on Europe and Asia moved primarily ...
Other Sciences / Archaeology & Fossils
Sep 19, 2011 |
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Human-Neanderthal coupling was rare: study
Scientists have shown that modern humans have some traces of genes from Neanderthals, but a study out Monday suggests that any breeding between the two was most likely a rare event.
Other Sciences / Archaeology & Fossils
Sep 12, 2011 |
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Gene flow may help plants adapt to climate change
The traffic of genes among populations may help living things better adapt to climate change, especially when genes flow among groups most affected by warming, according to a UC Davis study of the Sierra Nevada ...
Jun 28, 2011 |
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Bacteria use caffeine as food source
A new bacterium that uses caffeine for food has been discovered by a doctoral student at the University of Iowa. The bacterium uses newly discovered digestive enzymes to break down the caffeine, which allows it to live and ...
May 24, 2011 |
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Gene transfer from transgenic crops: A more realistic picture
A new data-driven statistical model that incorporates the surrounding landscape in unprecedented detail describes the transfer of an inserted bacterial gene via pollen and seed dispersal in cotton plants more ...
Nov 30, 2010 |
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If GMO genes escape, how will the hybrids do?
GMOs, or Genetically Modified Organisms, may raise concerns of genes escaping from crops and having unknown effects on natural, wild species. But what is the real risk that traits associated with GMOs will actually migrate ...
Nov 01, 2010 |
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For pandas, there is a mountain high enough, there is a valley low enough
Genetic analysis of giant pandas has shown that features of their landscape have a profound effect on the movement of genes within their population. Researchers writing in the open access journal BMC Genetics found ...
Jul 22, 2010 |
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Genetic data added to archaeology and linguistics to get picture of African population history
Genetic researchers from the University of Pennsylvania have combined data from existing archaeological and linguistic studies of Africa with human genetic data to shed light on the demographic history of the continent from ...
May 26, 2010 |
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Paper offers new insights into the genomics of speciation
A new paper by a team of researchers led by University of Notre Dame biologist Jeffrey Feder could herald an important shift in thinking about the genomics of speciation.
May 10, 2010 |
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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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Butterflies: 'Twice-punished' by habitat fragmentation and climate change
New findings by Virginie Stevens (CNRS), Jean Clobert (CNRS), Michel Baguette (Museum National d'Histoire Naturelle) and colleagues show that interactions between dispersal and life-histories are complex, ...
Dec 09, 2011 |
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