DNA markers

DNA markers

(mar'kĕrz),
Segments of chromosomal DNA known to be linked with heritable traits or diseases. Although the markers themselves do not produce the conditions, they exist in concert with the genes responsible and are passed on with them. Certain markers, restriction fragment length polymorphisms (RFLPs), consist of segments of DNA that can be identified on autoradiographs (produced after digestion of the DNA by restriction enzymes and segregation of the resulting fragments through gel electrophoresis).

DNA mark·ers

(mahr'kĕrz)
Segments of chromosomal DNA known to be linked with heritable traits or diseases. Although the markers themselves do not produce the conditions, they exist in concert with the genes responsible and are passed on with them. Some marker types, restriction fragment length polymorphisms, consist of segments of DNA that can be identified on autoradiographs (produced after digestion of the DNA by restriction enzymes and segregation of the resulting fragments through gel electrophoresis).
References in periodicals archive ?
A comprehensive analysis is then conducted using a custom-built genotyping chip that tests nearly 750,000 DNA markers, many of which have been specifically selected to provide highly detailed ancestry-related information.
Of these, DNA markers segment had the largest share of the Molecular Weight Marker Market in 2014 and is expected to grow at the highest CAGR between 2014 and 2019.
We investigated the paternity of 39 Adelie penguins (Pygoscelis adeliae) hatched at the Port of Nagoya Public Aquarium between 1995 and 2005 breeding seasons using microsatellite DNA markers.
Malaspinas and colleagues compared more than 650,000 DNA markers across the genomes of 27 present-day Rapa Nui natives, 17 Native Americans, 58 Europeans and 114 people from Asia and other South Pacific islands.
A first step towards genetic mugshots has been taken by US researchers linking specific DNA markers with face shape.
During the five-year-study, researchers from three universities in UK- Edinburgh University, Aberdeen University and University College London- looked at DNA markers of 6,800 people, part of the Scottish Family Health Study.
Using this data, a team led by Simon Myers of Oxford University, Garrett Hellenthal of University College London and Daniel Falush of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, were able to isolate different DNA markers that they can 'cross check' with other populations.
It's about 3 inches long and has an etched surface that holds thousands of DNA markers, which can be deciphered by computers and used by scientists to characterize the genomes of large numbers of soybean plants.
Because of these characteristics the evaluation of genetic diversity by DNA markers is more efficient and reliable than others.
In future, we can distinguish between different varieties of date palm using DNA markers alone and not just morphology or fruit character," Dr Ahmed said.