Navigation Links
Genetic study of house dust mites demonstrates reversible evolution
Date:3/8/2013

estion may result in broad practical applications," he said. "Knowing phylogenetic relationships of house dust mites may provide insights into allergenic properties of their immune-response-triggering proteins and the evolution of genes encoding allergens."

The project started in 2006 with a grant from the National Science Foundation. The first step was to obtain specimens of many free-living and parasitic mitesno simple task given that some mite species are associated with rare mammal or bird species around the world.

The research team relied on a network of 64 biologists in 19 countries to obtain specimens. In addition, Klimov and OConnor conducted field trips to North and South America, Europe, Asia and Africa. On one occasion, it took two years to obtain samples of an important species parasitizing African birds.

A total of around 700 mite species were collected for the study. For the genetic analysis, the same five nuclear genes were sequenced in each species.

How might the ecological shift from parasite to free-living state have occurred?

There is little doubt that early free-living dust mites were nest inhabitantsthe nests of birds and mammals are the principal habitat of all modern free-living species in the family Pyroglyphidae. Klimov and OConnor propose that a combination of several characteristics of their parasitic ancestors played an important role in allowing them to abandon permanent parasitism: tolerance of low humidity, development of powerful digestive enzymes that allowed them to feed on skin and keratinous (containing the protein keratin, which is found in human hair and fingernails) materials, and low host specificity with frequent shifts to unrelated hosts.

These features, which occur in almost all parasitic mites, were likely important precursors that enabled mite populations to thrive in host nests despite low humidity and scarce, low-quality food resources, according to Klimov and OConno
'/>"/>

Contact: Jim Erickson
ericksn@umich.edu
734-647-1842
University of Michigan
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Genetics Society of Americas Genetics journal highlights for March 2013
2. U of M researchers utilize genetically corrected stem cells to spark muscle regeneration
3. Genetic risk factors for common eye disorder come into focus
4. U of M researchers identify genetic variation behind acute myeloid leukemia treatment success
5. Geneticist Svante Pääbo receives the $500,000 Gruber Genetics Prize
6. Genetic signs of alcoholism in women studied for the first time
7. Researchers in Manchester find genetic key to preventing spine tumors
8. When It Comes To Genetic Code, Researchers Prove Optimum Isnt Always Best
9. Life experiences put their stamp on the next generation: New insights from epigenetics
10. Cleveland Clinic develops clinical screening program for no.1 genetic cause of colon cancer
11. Epigenetics shapes fate of brain vs. brawn castes in carpenter ants
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/12/2015)... --  MedNet Solutions , an innovative SaaS-based eClinical technology ... is proud to announce that iMedNet ... platform, has led the way to significant and unprecedented ...   Q2 2015 and Q1 2015 were, respectively, the ... sold in the company,s 15 year history.  In addition, ...
(Date:8/11/2015)... Today, ZUK announced its Android smartphone Z1, ... expected revenues in 2015 that relate to sales of FPC1155 for ... approximately 2,200 MSEK for 2015. Jörgen Lantto, CEO of ... smartphone manufacturer in China and ... 155 for Z1 , ...
(Date:8/6/2015)... Germany , August 6, 2015 /PRNewswire/ ... SensoMotoric Instruments (SMI) shows the world,s first ... based on Epson,s Moverio BT-200 see-through head mounted display ... new solution, unprecedented quality and efficiency is brought to ... displays. For the first time, professionals and researchers can ...
Breaking Biology News(10 mins):MedNet Solutions Experiences Explosive Corporate Growth 2FPC's Touch Fingerprint Sensor FPC1155 in ZUK's Smartphone Z1 2SMI Shows First Eye Tracking Upgrade for Augmented Reality Glasses 2SMI Shows First Eye Tracking Upgrade for Augmented Reality Glasses 3
... consequence of their own success. They created drugs that can ... same drugs will eventually cause the constantly mutating virus to ... a new $3.4 million grant from the National Institutes of ... researchers who want to stay a step ahead of HIV ...
... signal whether an athlete will experience concussive symptoms beyond ... for prolonged concussion symptoms by examining a large national ... were limited in scope, focusing only on male football ... and female athletes from a number of different sports. ...
... professor at the University of California, Riverside,s Bourns College ... snail found off the coast of California to create ... solar cells and lithium-ion batteries. The most recent ... and environmental engineering, details how the teeth of chiton ...
Cached Biology News:Researchers attack HIV's final defenses before drug-resistant mutations emerge 2Researchers attack HIV's final defenses before drug-resistant mutations emerge 3Using snail teeth to improve solar cells and batteries 2Using snail teeth to improve solar cells and batteries 3
(Date:8/27/2015)... Aug. 27, 2015 The National Necrotizing ... eyes—and life—were saved by doctors at Vanderbilt University Hospital ... NNFF, NovaBay Pharmaceuticals and Dr. John Crew , ... at Seton Medical Center in Daly City, ... a breakthrough approach, pioneered by Dr. Crew, that had ...
(Date:8/27/2015)... 2015 HUYA Bioscience International (HUYA) today announced the ... Society of HTLV-1, held this week at the University ... the Society is to promote research on HTLV-1 and ... technology and research related to these fields to advance ... is proud to support this prestigious conference," said ...
(Date:8/27/2015)... ... August 27, 2015 , ... METTLER TOLEDO's web-based EasyFinder™ ... product choices to a manageable shortlist of bench and floor scales and terminals. ... fit best with the customer’s industry and application. , Side-by-side product comparisons ...
(Date:8/26/2015)... ... August 26, 2015 , ... MediVet ... a second US laboratory is to open in Manhattan, Kansas in early October, ... and long-term growth of research and development through collaboration with researchers from Kansas ...
Breaking Biology Technology:Patient's Life and Eyes Saved from Gruesome Flesh-Eating Infection Consuming Her Face 2Patient's Life and Eyes Saved from Gruesome Flesh-Eating Infection Consuming Her Face 3HUYA Bioscience International Sponsors Japan Society Of HTLV-1 Annual Meeting 2HUYA Bioscience International Sponsors Japan Society Of HTLV-1 Annual Meeting 3HUYA Bioscience International Sponsors Japan Society Of HTLV-1 Annual Meeting 4METTLER TOLEDO Updates Online Scale Selection Tool 2MediVet Biologics Animal Health Secures Additional Laboratory Facility in Manhattan, Kansas 2MediVet Biologics Animal Health Secures Additional Laboratory Facility in Manhattan, Kansas 3
... quickly produce ultra-lightweight, bendable batteries and supercapacitors in ... a sheet of paper with ink made of ... conductive storage device, said Yi Cui, assistant professor ... needs a low-cost, high-performance energy storage device, such ...
... 7 Vivakor, Inc. (OTC Bulletin Board: VIVK) today announced ... Chen and Fritz Lin, M.D. , Dr. Francis Chen ... as Board member of Vivakor, having held senior management positions ... Dr. Chen earned his Ph.D. in immunology from Harvard University, ...
... , VIENNA, Austria, December 7 ... for the,chemical industry, announced today that it has appointed Mr ... forward, EUCODIS Bioscience,sole focus will be to provide high-performance enzymes ... and,on its proven technology of "in vivo recombination". , ...
Cached Biology Technology:Dip ordinary paper into ink infused with nanotubes and nanowires to create an instant battery 2Vivakor Announces Additions to Board of Directors and Scientific Advisory Board 2Vivakor Announces Additions to Board of Directors and Scientific Advisory Board 3EUCODIS Bioscience Appoints Thomas Fischer as New CEO 2
Designed for use with all 96-well SPRI reagent kits. Used with round bottom 96-well microplates, and 96-well thermal cycling plates....
... Polystyrene covers can be used ... Ridged covers for stacking of ... covers for use with automated ... ridged and non-ridged, are available ...
... number is a new product ... Cornings product number. If showing ... under the old Sigma-Aldrich number ... for assistance. ID clarifier: barcoded, ...
... of media and other fluid sources for ... The speed of each individual pump is ... points, are exactly maintained. ,High-precision controlled ... tube types, which allows flow rates between ...
Biology Products: