News tagged with genetic markers

For monogamous sparrows, it doesn't pay to stray (but they do it anyway)

It's quite common for a female song sparrow to stray from her breeding partner and mate with the male next door, but a new study shows that sleeping around can be costly.

Biology / Plants & Animals

created May 22, 2012 | popularity 5 / 5 (2) | comments 8 | with audio podcast

In cod we trust: DNA test combats fisheries fraud

Scientists on Tuesday said they had devised a DNA test to pinpoint the geographical origins of commercial seafish, in a breakthrough against illegal trawling that threatens fish stocks worldwide.

Biology / Biotechnology

created May 22, 2012 | popularity not rated yet | comments 0

Maps of Miscanthus genome offer insight into grass evolution

Miscanthus grasses are used in gardens, burned for heat and energy, and converted into liquid fuels. They also belong to a prominent grass family that includes corn, sorghum and sugarcane. Two new, indepe ...

Biology / Biotechnology

created May 15, 2012 | popularity 4 / 5 (1) | comments 0 | with audio podcast

lobSTR algorithm rolls DNA fingerprinting into 21st century

As any crime show buff can tell you, DNA evidence identifies a victim's remains, fingers the guilty, and sets the innocent free. But in reality, the processing of forensic DNA evidence takes much longer than a 60-minute primetime ...

Biology / Biotechnology

created Apr 27, 2012 | popularity 4.7 / 5 (7) | comments 0 | with audio podcast

Genetic markers for tracking species

At the supermarket checkout, hardly anybody enters prices manually anymore. Using scanners that can read the barcodes is much faster. Biologists now want to use a similar procedure for identifying domestic animal and plant ...

Biology / Biotechnology

created Apr 25, 2012 | popularity not rated yet | comments 0

A new approach to molecular plant breeding

(Phys.org) -- A U.S. Department of Agriculture (USDA) scientist has shown researchers and plant breeders a better way to handle the massive amounts of data being generated by plant molecular studies, using ...

Biology / Biotechnology

created Apr 18, 2012 | popularity not rated yet | comments 0

Scientists discover 'switch' in plants to create flowers

Flowering is the most crucial act that plants undergo, as the fruits of such labor include crops on which the world depends, and seeds from which the next generation grows.

Biology / Plants & Animals

created Apr 17, 2012 | popularity 5 / 5 (1) | comments 2

Maternal gene causes more piglets to be born

A sow gives birth to more piglets if the DIO3 gene from its mother is expressed instead of the same gene inherited from its father. This is shown during research conducted by the Animal Breeding and Genomics Centre in Wageningen ...

Biology / Biotechnology

created Mar 26, 2012 | popularity not rated yet | comments 0

Research uncovers genetic marker that could help control, eliminate PRRS virus

A collaborative discovery involving Kansas State University researchers may improve animal health and save the U.S. pork industry millions of dollars each year.

Biology / Plants & Animals

created Mar 15, 2012 | popularity not rated yet | comments 0

Giving research a boost with cheaper biochips

An EPFL invention has drastically reduced the cost of producing biochips, which are used to measure glucose and drug levels in the blood and to detect biomolecules and cellular signals. This development could ...

Electronics / Hardware

created Mar 14, 2012 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Science to help rice growers affected by Japan's tsunami

Under a year since a huge tsunami inundated paddy fields in Japan with salty sludge, scientists are near to developing locally-adapted, salt-tolerant rice. Following a Japan-UK research collaboration, a new ...

Biology / Biotechnology

created Jan 22, 2012 | popularity 4 / 5 (4) | comments 2 | with audio podcast

Scientists develop drought-tolerant alfalfa

With much of the Southwest struggling with drought, many ranchers and dairy farmers are having difficulty finding enough hay for their livestock and making tough choices: pay up to twice as much as last year and ship it in ...

Biology / Biotechnology

created Jan 03, 2012 | popularity 4.5 / 5 (2) | comments 0

Invention analyzes plant diseases without leaving the field

Farmers and field scientists can now instantly identify diseases attacking crops and plants, thanks to a Michigan State University professor's new invention.

Biology / Biotechnology

created Nov 07, 2011 | popularity not rated yet | comments 0

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

created Sep 19, 2011 | popularity 4 / 5 (4) | comments 2 | with audio podcast

Mother tongue comes from your prehistoric father

(PhysOrg.com) -- Language change among our prehistoric ancestors came about via the arrival of immigrant men - rather than women - into new settlements, according to new research.

Other Sciences / Archaeology & Fossils

created Sep 09, 2011 | popularity 4.2 / 5 (6) | comments 2 | with audio podcast

Genetic marker

A genetic marker is a gene or DNA sequence with a known location on a chromosome and associated with a particular gene or trait. It can be described as a variation, which may arise due to mutation or alteration in the genomic loci, that can be observed. A genetic marker may be a short DNA sequence, such as a sequence surrounding a single base-pair change (single nucleotide polymorphism, SNP), or a long one, like minisatellites.

For more information about Genetic marker, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.

Related topics: genes , genetic variation , genome