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Characterization of grapevine transposons furthers understanding of in vino variety
The grapevine (Vitis vinifera) is a widely cultivated crop that has been subjected to intensive breeding since the Neolithic period (from ~10,500 to ~6,000 years ago). The domestication of grapevine has undergone a selection for traits important for its cultivation and usage. view more (2008-09-03)
After dinosaurs, mammals rise but their genomes get smaller
Evidence buried in the chromosomes of animals and plants strongly suggests only one group -- mammals -- have seen their genomes shrink after the dinosaurs' extinction. view more (2009-07-28)
Fish evolve a longer lifespan by evolving a longer reproductive period, researchers find
A UC Riverside-led research team has found that as some populations of an organism evolve a longer lifespan, they do so by increasing only that segment of the lifespan that contributes to "fitness" - the relative ability of an individual to contribute offspring to the next generation. view more (2005-12-27)
Work of Field Museum scientist addresses question of chance in evolution
As Darwin observed, natural selection leading to adaptation of individuals and populations is occurring gradually and all the time. But over very long spans of time, the major channels of genetic organization, organism form, and the different ways organisms develop arose as outcomes of history-dependent variation that is now channeled, or... view more... (2009-06-10)
University of Chicago study overturns conventional theory in evolution
New data suggest that the accumulation of genetic changes is not solely determined by natural selection. A study by University of Chicago researchers contradicts conventional theory by showing that the percentage of mutations accepted in evolution is also strongly swayed by the speed at which new mutations arrive at a gene: the faster the speed of... view more... (2005-06-07)
Mice living in sandy hills quickly evolved lighter coloration
In a vivid illustration of natural selection at work, scientists at Harvard University have found that deer mice living in Nebraska's Sand Hills quickly evolved lighter coloration after glaciers deposited sand dunes atop what had been much darker soil. The work is described this week in the journal Science. view more (2009-08-28)
Biofilms: Even Stickier Than Suspected
Biofilms are everywhere - in dental plaque and ear canals, on contact lenses and in water pipelines - and the bacteria that make them get more resilient with age, finds a new study in FEMS Microbiology Letters. view more (2009-03-13)
New study explains why hotter is better for insects
Organisms have been able to adapt to environments ranging from cold polar oceans to hot thermal vents. However, University of Washington researchers have discovered a limit to the powerful forces of natural selection, at least when it comes to the adaptation of insects to cold temperatures. view more (2006-10-03)
Habitat loss and reserve network selection
What is the minimum combination of areas needed to protect at least one population of every species in a region? - This is a problem commonly addressed when aiming at cost-effective reserve networks. However, because the stress on reserve cost, the properties of the reserve-network for species persistence are often overlooked, typically resulting... view more... (2003-07-02)
Prediction of RNA pseudoknots using heuristic modeling with mapping and sequential folding
An algorithm utilizing structure mapping and thermodynamics is introduced for RNA pseudoknot prediction. The method finds the minimum free energy in the context of the biological folding direction (5' to 3') of RNA sequences. view more (2007-09-19)
The Bioethics and Law Observatory advocates that in certain circumstances sex selection should be permitted for non-therapeutic reasons
In a press conference hold today, the Bioethics and Law Observatory (OBD) of the Universitat de Barcelona (UB) (University of Barcelona), based at the Parc Cient'fic de Barcelona (Barcelona Science Park), presented their latest Declaration on Sex Selection. This document advocates a modification of current legislation in order to permit... view more... (2003-03-13)
A gene divided reveals the details of natural selection
In a molecular tour de force, researchers at the University of Wisconsin-Madison have provided an exquisitely detailed picture of natural selection as it occurs at the genetic level. view more (2007-10-11)
Time in a bottle: Scientists watch evolution unfold
A 21-year Michigan State University experiment that distills the essence of evolution in laboratory flasks not only demonstrates natural selection at work, but could lead to biotechnology and medical research advances, researchers said. view more (2009-10-19)
Selection on genes underlying schizophrenia during human evolution
Several genes with strong associations to schizophrenia have evolved rapidly due to selection during human evolution. view more (2007-09-05)
Winning by a neck — Giraffes avoid competing with shorter browsers
The giraffe's elongated neck has long been used in textbooks as an illustration of evolution by natural selection, but this common example has received very little experimental attention. view more (2006-12-26)
The business of natural selection
Many gamblers claim to have a "system", whether they're shooting craps, backing horses, or punting on the stock market. Now, researchers in Taiwan have devised an approach to spotting when a company is likely to fail based on the principles of natural selection. view more (2008-03-17)
Gene's 'selective signature' aids detection of natural selection in microbial evolution
Scientists at MIT have come up with a mathematical approach for analyzing a protein simultaneously in a set of ecologically distinct species to identify occurrences of natural selection in an organism's evolution. view more (2008-03-19)
Anthropologist's studies of childbirth bring new focus on women in evolution
Contrary to the TV sitcom where the wife experiencing strong labor pains screams at her husband to stay away from her, women rarely give birth alone. There are typically doctors, nurses and husbands in hospital delivery rooms, and sometimes even other relatives and friends. Midwives often are called on to help with births at home. view more (2009-02-18)
Real super-bugs can save the planet - Microbiology Today: November 2004 issue
Beneficial bacteria have fast-tracked evolution to solve some of our pollution problems, according to an article in the November 2004 issue of Microbiology Today, the quarterly magazine of the Society for General Microbiology. Using the same mechanisms that have allowed hospital superbugs to survive in the presence of antibiotics, many bacteria... view more... (2004-10-26)
Sex selection for social reasons unlikely to skew gender balance in Germany and UK
Allowing sex selection for social reasons would be highly unlikely to skew the gender balance - at least in Germany and the UK - according to new research published today (Thursday 25 September) in Europe's leading reproductive medicine journal Human Reproduction[1]. Surveys of more than 1,000 men and women in each country did reveal differences... view more... (2003-09-21)
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