Daily non-political popular news in brief.

Ecological genetics of freshwater bacteria surveyed

02-01-2008 · EurekAlert!

The first of a new series of articles on 21st Century Directions in Biology describes how new molecular techniques have started to characterize the nature and variation of bacterial populations in fresh water.

Keywords: ecological, genetics, freshwater, bacteria, surveyed, genetic

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Researchers decode genetics of rare photosynthetic bacteria
02-07-2008 · EurekAlert!
A bacterium that harvests far-red light by making a rare form of chlorophyll (chlorophyll d) has revealed its genetic secrets, according to a team of researchers who recently sequenced the bacteria's genome. The researchers, from Arizona State University and Washington University, St. Louis, report their findings in the current online edition (Feb. 4) of the Proceedings of the National Academy of Sciences.
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Researchers decode genetics of rare photosynthetic bacterium
02-07-2008 · EurekAlert!
A bacterium that harvests far-red light by making a rare form of chlorophyll (chlorophyll d) has revealed its genetic secrets, according to a team of researchers who recently sequenced the bacteria's genome. The researchers, from Arizona State University and Washington University, St. Louis, report their findings in the current online edition (Feb. 4) of the Proceedings of the National Academy of Sciences.
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Dissecting the genetic components of adaptation of E. coli to the mouse gut
01-11-2008 · EurekAlert!
New insights into the evolutionary mechanisms that facilitate the remarkably fast adaptation of intestinal bacteria within their natural environment are provided in the January issue of PLoS Genetics by researchers from INSERM and INRA at University Paris Descartes.Using germ-free mice -- a simplified but ecologically relevant system -- the authors analyzed the intestinal adaptation of a model bacterial strain, Escherichia coli MG1655.
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Gene found for rare disorder may reveal new pathway in mental retardation
02-05-2007 · EurekAlert!
Studying mutations that give rise to a rare genetic disease, genetics researchers have identified a novel biological pathway that may have a broader role during human development, potentially in cases of mental retardation and autism. An international team of researchers identified two genes that contribute to Cornelia deLange syndrome, a multisystem genetic disease that affects an estimated one in 10,000 children.
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Environment and exercise may affect research results, UA study shows
02-20-2007 · EurekAlert!
In the study, Knockout Mice: Is it Just Genetics? Effects of Enriched Housing on Fibulin-4+/- Mice, lead researcher Ann Baldwin, PhD, suggests that environmental factors may play a large part in research findings that investigators assume are due simply to genetic differences. Further, the study research indicates that appropriate environments may counteract the effects of some genetic deficiencies.
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Global community listens to TAU genetic researcher at EU Conference on Hearing Loss
07-09-2007 · EurekAlert!
Is hearing loss just one of those things that happens as we get older? Tel Aviv University is working towards finding a solution to deafness that will improve the quality of life for people everywhere. This week Prof. Karen Avraham represented a European consortium, EuroHear, at an international conference in France. With her Palestinian research colleague, Prof. Avraham is a leading figure in the field of hearing loss -- her landmark research in genetics has led to improved diagnostic tests which are currently being used today.
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UT rheumatologists discover 2 genes related to disabling form of arthritis
10-21-2007 · EurekAlert!
Work done in part by researchers at the University of Texas Medical School at Houston has led to the discovery of two genes that cause ankylosing spondylitis, an inflammatory and potentially disabling disease. The findings are published in the Oct. 21 online edition of Nature Genetics, a journal that emphasizes research on the genetic basis for common and complex diseases.
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Genetic diversity of European Americans and disease gene mapping
01-17-2008 · EurekAlert!
In a recent study, published in the open-access journal PLoS Genetics, an international team of researchers provide the first genetic dissection of the population structure of European Americans, focusing on identifying the contributions from different genetic ancestries that are important for disease gene mapping.
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Prehistoric origins of stomach ulcers uncovered
02-07-2007 · EurekAlert!
Scientists have discovered that the ubiquitous bacteria that causes most painful stomach ulcers has been present in the human digestive system since modern man migrated from Africa over 60,000 years ago. They compared DNA sequence patterns of humans and the Helicobacter pylori bacteria now known to cause most stomach ulcers and found that the genetic differences between human populations that arose as they dispersed from Eastern Africa over thousands of years are mirrored in H.pylori.
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New study suggests Columbus brought syphilis to Europe from New World
01-14-2008 · EurekAlert!
The most comprehensive comparative genetic analysis conducted on the family of bacteria (the treponemes) that cause syphilis and related diseases such as yaws, published Tuesday, Jan. 15 in PLoS Neglected Tropical Diseases, supports the so-called "Columbian theory" of syphilis' origins.
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