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Latest Transposon Stories

Seeds Of Defense Being Planted
2012-08-08 07:16:52

Salk study finds stress triggers widespread epigenetic changes that aid in disease resistance It was long thought that methylation, a crucial part of normal organism development, was a static modification of DNA that could not be altered by environmental conditions. New findings by researchers at the Salk Institute for Biological Studies, however, suggest that the DNA of organisms exposed to stress undergo changes in DNA methylation patterns that alter how genes are regulated. The...

Footprint Of A Fly Virus Found In Fly DNA
2012-08-01 14:49:44

The discovery of virus-like genes in the DNA of a commonly studied fruit fly could enable research on whether animals hijack viral genes as an anti-viral defense In a curious evolutionary twist, several species of a commonly studied fruit fly appear to have incorporated genetic material from a virus into their genomes, according to new research by University at Buffalo biologists. The study found that several types of fruit fly -- scientific name Drosophila -- harbored genes similar to...

2012-07-11 13:49:14

Listed below are the selected highlights for the July 2012 issue of the Genetics Society of America's journal, Genetics. The July issue is available online at www.genetics.org/content/current. Please credit Genetics, Vol. 191, JULY 2012, Copyright © 2012. ISSUE HIGHLIGHTS Increasing association mapping power and resolution in mouse genetic studies through the use of meta-analysis for structured populations, pp. 959-967 Nicholas A. Furlotte, Eun Yong Kang, Atila Van Nas, Charles R....

Genome Mapping Of Crocodiles Could Aid In Species Conservation
2012-05-22 05:48:44

[ Watch the Video ] "If it can't bite you, it's not interesting,” jokes David Ray an evolutionary biologist at Mississippi State University (MSU). Ray and his team of researchers study alligators, crocodiles, flies, bats and other animals. Ray stated of the risky work, "Oh, it's great. I mean, there's just a thrill.” The team, comprised of researchers from many different universities, is undergoing studies on genome mapping of alligators and crocodiles, funded by the...

LSU Research Finds Orangutans Host Ancient Jumping Genes
2012-05-07 14:34:59

LSU´s Mark Batzer, along with research associate Jerilyn Walker and assistant professor Miriam Konkel, have published research determining that modern-day orangutans are host to ancient jumping genes called Alu, which are more than 16 million years old. The study was done in collaboration with the Zoological Society of San Diego and the Institute of Systems Biology in Seattle and is featured in the new open access journal Mobile DNA. These tiny pieces of mobile DNA are able to copy...

Orangutans Harbor Ancient Primate Alu
2012-04-30 07:51:46

Alu elements infiltrated the ancestral primate genome about 65 million years ago. Once gained an Alu element is rarely lost so comparison of Alu between species can be used to map primate evolution and diversity. New research published in BioMed Central's open access journal Mobile DNA has found a single Alu, which appears to be an ancestral great ape Alu, that has uniquely multiplied within the orangutan genome. Analysis of DNA sequences has found over a million Alu elements within each...

2012-02-23 18:00:04

The many short pieces of mobile DNA that exist in the genome can contribute to significant biological differences between lineages of mice, according to a new study led by researchers at the Ohio State University Comprehensive Cancer Center — Arthur G. James Cancer Hospital and Richard J. Solove Research Institute (OSUCCC — James). The movable pieces of DNA are called transposons or "jumping genes" because they can move from one chromosomal location to another. Unlike viruses,...

2012-02-16 14:46:21

Worth EUR 1.94 million Dr. Zsuzsanna Izsvák, research group leader at the Max Delbrück Center for Molecular Medicine (MDC) Berlin-Buch, has been named recipient of a European Research Council (ERC Advanced) grant worth EUR 1.94 million for her research on "jumping genes" (transposons). With the aid of the ERC grant, in the next five years she will focus on investigating how mobile DNA elements (transposons) influence the pathogenesis of cancer and other...

2012-02-10 16:07:01

Rice University undergraduate simplifies tool for biomolecular research A Rice University undergraduate will depart with not only a degree but also a possible patent for his invention of an efficient way to create protein libraries, an important component of biomolecular research. Rice senior Manan Mehta discovered a method to create libraries of "circularly permuted" proteins at the suggestion of his mentor, bioengineer Jonathan Silberg. The research was reported this week in the...

2012-02-03 19:00:17

Many living organisms suffer from parasites, which use the hosts´ resources for their own purposes. The problem of parasitism occurs at all levels right down to the DNA scale.  Genomes may contain up to 80% “foreign” DNA but details of the mechanisms by which this enters the host genome and how hosts attempt to combat its spread are still the subject of conjecture.  Important new information comes from the group of Christian Schlötterer at the...