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:4/17/2014)... years ago, Katia Silvera , a postdoctoral scholar at ... a field trip in a mountainous area in central Panama ... before. , Unable to identify it, they contacted German Carnevali, ... to be an unnamed species. So Carnevali recently named it ... the genus name, comprising about 40 species in the world. ...
(Date:4/17/2014)... available in German . ... protection money demanded of him, he can expect his premises ... as fear of the consequences is enough to make restaurant ... birds, which lay their eggs in other birds, nests. If ... parasites take their revenge by destroying the entire nest. Consequently, ...
(Date:4/17/2014)... deforestation and fragmentation of forests in the Amazon ... forests, contributing to rapid and widespread forest loss ... researchers., The findings show that forests in the ... droughts coupled with forest fires lead to large-scale ... Jennifer Balch, assistant professor of geography, Penn State. ...
Breaking Biology News(10 mins):Orchid named after UC Riverside researcher 2Orchid named after UC Riverside researcher 3Fear of the cuckoo mafia 2Fear of the cuckoo mafia 3Drought and fire in the Amazon lead to sharp increases in forest tree mortality 2Drought and fire in the Amazon lead to sharp increases in forest tree mortality 3
... antibacterial protein targeted against E. coli O157:H7 may offer ... infections, as demonstrated in a study published in the ... Results in an animal model of E. coli ... by AvidBiotics, Inc., could prevent or treat E. ...
... YORK, November 20, 2011 In a new study scientists ... of smell can be improved. The new findings, published online ... ways to reverse the loss of smell due to aging ... senses, explains Donald A. Wilson, PhD, professor of child and ...
... in Nature Medicine describes how different types of immune ... regrow bone and tissue, bringing into sharp focus the ... cell regeneration. The study, conducted at the Center ... Dentistry of USC, examined how mice with genetic bone ...
Cached Biology News:Targeted antibacterial proteins may offer antibiotic alternative 2Targeted antibacterial proteins may offer antibiotic alternative 3A failing sense of smell can be reversed 2
(Date:1/15/2014)... (PRWEB) January 15, 2014 Cynvenio, a ... management through the genomic analysis of tumor cells in ... Finder™, a web-based cancer decision support application powered by ... with Cynvenio’s ClearID™ genomic test, Therapy Finder will provide ...
(Date:1/15/2014)... RedBrick Health , a fast-growing leader in consumer health ... EmblemHealth , the New York -based ... RedBrick Compass health assessment, combined with the RedBrick Journeys ... EmblemHealth is among the first health plans in the ...
(Date:1/15/2014)... 2014 A study has been launched to ... 1 track could help to tackle the problem of obesity. ... (a GP surgery based in Stowmarket) and academics at University ... Telemetry technology, which is inspired by equipment used to ...
(Date:1/15/2014)... 2014 Two champions of science, technology, ... of an annual competition for middle and high school ... innovative STEM study. The competition presents students with real-world ... Engineering Aptitude, Mathematics, and Sciences is a program ...
Breaking Biology Technology:Cynvenio Offers New Breast Cancer Therapy Finder Application for its ClearID Breast Cancer Genomic Test 2Cynvenio Offers New Breast Cancer Therapy Finder Application for its ClearID Breast Cancer Genomic Test 3EmblemHealth Selects RedBrick Health to Power its Next-Generation Health Engagement and Behavior Change System 2EmblemHealth Selects RedBrick Health to Power its Next-Generation Health Engagement and Behavior Change System 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 2Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 4Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 2Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 3Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 4Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 5
... world of the 21st century owes a tremendous amount ... finely control the flow of electrical charges using increasingly ... continue to race ahead, researchers at the University of ... by replacing electricity with light. "Looking at the ...
... Springboard Enterprises has over a decade of experience ... potential investors and corporate partners.  Today they launch ... to fast track the growth of the best ... from around the world. The search is on ...
... and AMSTERDAM, Feb. 23, 2012   Rubicon Genomics, ... pre-analytical processes to improve the capabilities and ... today announced a clinical supply agreement with ... whole genome RNA amplification technology.  Agendia will ...
Cached Biology Technology:Penn researchers build first physical 'metatronic' circuit 2Penn researchers build first physical 'metatronic' circuit 3Penn researchers build first physical 'metatronic' circuit 4The Search Is On for the Next Big Life Science Innovation 2The Search Is On for the Next Big Life Science Innovation 3Rubicon Genomics and Agendia Sign Agreement for Use of TransPLEX® Whole Genome RNA Amplification Technology With Symphony™ Cancer Diagnostics 2Rubicon Genomics and Agendia Sign Agreement for Use of TransPLEX® Whole Genome RNA Amplification Technology With Symphony™ Cancer Diagnostics 3
Polyclonal Antibody to CLAN...
Request Info...
IRF7 Immunogen: Synthetic peptide corresponding to residues E(463) G T Q R E G V S S L D S S S(477) of human IRF7. Storage: -20 C, Avoid Freeze/Thaw Cycles...
Rabbit polyclonal to TetR ( Abpromise for all tested applications). Antigen: Synthetic peptide: AQKLGVEQPTLYWHVKNKR, corresponding to amino acids 31 - 49 of TetR...
Biology Products: