News tagged with gene flow
A novel hypothesis for beetle diversification -- Loss of flight promotes beetle diversification
Professor Teiji Sota, Department of Zoology at Kyoto University, and his group demonstrated that loss of flight has been the major driving force for beetle diversification. This finding has been published ...
Feb 03, 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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Solar power development in US Southwest could threaten wildlife
Government agencies are considering scores of applications to develop utility-scale solar power installations in the desert Southwest of the United States, but too little is known to judge their likely effects on wildlife, ...
Dec 09, 2011 |
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Deep-reef coral hates the light, prefers the shade
Coral reefs are among the most diverse ecosystems on the planet, second only to tropical rain forests. Bird's nest coral (Seriatopora hystrix) is common throughout the Indo-Pacific and is able to live across a range of dep ...
Oct 17, 2011 |
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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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The geometry of sex: How body size could lead to new species
Different species of scincid lizards, commonly known as skinks, rarely interbreed, but it's not for lack of trying.
Aug 26, 2011 |
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'Gifted' natural vitamin E tocotrienol protects brain against stroke in three ways
A natural form of vitamin E called alpha-tocotrienol can trigger production of a protein in the brain that clears toxins from nerve cells, preventing those cells from dying after a stroke, new research shows.
Jul 05, 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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The search for an effective treatment for critical limb ischemia continues
Despite showing promising results in a recent phase 2 trial, administration of a novel gene therapy (NV1FGF) to enhance the growth of new blood vessels in people with critical limb ischaemia (whose legs are damaged when blocked ...
May 30, 2011 |
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Population genetics reveals shared ancestries
More than just a tool for predicting health, modern genetics is upending long-held assumptions about who we are. A new study by Harvard researchers casts new light on the intermingling and migration of European, Middle Eastern ...
May 24, 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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Climate change and evolution of Cross River gorillas
Two species of gorillas live in central equatorial Africa. Divergence between the Western gorillas (Gorilla gorilla) and Eastern Gorillas (G. beringei) began between 0.9 and 1.6 million years ago and now the two species l ...
Apr 01, 2011 |
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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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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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