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

ANN ARBORIn evolutionary biology, there is a deeply rooted supposition that you can't go home again: Once an organism has evolved specialized traits, it can't return to the lifestyle of its ancestors.

There's even a name for this pervasive idea. Dollo's law states that evolution is unidirectional and irreversible. But this "law" is not universally accepted and is the topic of heated debate among biologists.

Now a research team led by two University of Michigan biologists has used a large-scale genetic study of the lowly house dust mite to uncover an example of reversible evolution that appears to violate Dollo's law.

The study shows that tiny free-living house dust mites, which thrive in the mattresses, sofas and carpets of even the cleanest homes, evolved from parasites, which in turn evolved from free-living organisms millions of years ago.

"All our analyses conclusively demonstrated that house dust mites have abandoned a parasitic lifestyle, secondarily becoming free-living, and then speciated in several habitats, including human habitations," according to Pavel Klimov and Barry OConnor of the U-M Department of Ecology and Evolutionary Biology.

Their paper, "Is permanent parasitism reversible?Critical evidence from early evolution of house dust mites," is scheduled to be published online March 8 in the journal Systematic Biology.

Mites are arachnids related to spiders (both have eight legs) and are among the most diverse animals on Earth. House dust mites, members of the family Pyroglyphidae, are the most common cause of allergic symptoms in humans, affecting up to 1.2 billion people worldwide.

Despite their huge impact on human health, the evolutionary relationships between these speck-sized creatures are poorly understood. According to Klimov and OConnor, there are 62 different published hypotheses arguing about whether today's free-living dust mites originated from a free-living ancesto
'/>"/>

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:1/22/2015)... NXT-ID, Inc. (NASDAQ: NXTD and NXTDW) a biometric ... recent success of the Wocket™ smart wallet at CES 2015 in ... named as one of the "11 Hot Products at CES" in a ... CES So Far" by Newseveryday.com and "The top 10 gadgets from CES ...
(Date:1/22/2015)... , Jan. 22, 2015 Research and Markets ... of the "Global Wearable Technologies Market and ... Overview, Trends and Forecast 2014-2020" report to ... are smart devices that can be worn on ...
(Date:12/22/2014)... (NASDAQ: NXTD and NXTDW) ("NXT-ID" or the ... commerce market, announces it has retained famous pickpocket, entertainer and ... CES debut of the Wocket™ biometric smart wallet.  ... booth January 6th and 7 th , 2015, demonstrating some ...
Breaking Biology News(10 mins):CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 2CES Response for NXT-ID's Wocket Smart Wallet Kicks Off 2015 3Global Wearable Technologies Market and Applications, Opportunities, Industry Analysis, Segmentation, Size, Growth, Share, Overview, Trends and Forecast 2014-2020 2NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 2NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 3NXT-ID Hires Master Pickpocket and Security Consultant Apollo Robbins for Wocket Smart Wallet CES 2015 Debut 4
... April 6, 2009 Outreach efforts by the ... corners of Arizona. For the second year, TGen ... Arizona,s vast Navajo Nation. The 2nd annual Fort ... Arizona Myeloma Network, is planned 8:30 a.m.-5 p.m. July ...
... Award-Winning Palm Vein Authentication Technology Adds Robust ... Security and Facilitate ComplianceSUNNYVALE, Calif., April 6 ... a leading supplier of innovative computer products ... security solutions, today announced the integration of ...
... Johns Hopkins has convinced an international group of colleagues ... and instead begin a 7,000-hour slog through a compendium ... and analyze the molecules that might herald the furtive ... available for the exhaustive and expensive testing that needs ...
Cached Biology News:TGen helps promote cancer awareness for vast Navajo Nation 2TGen helps promote cancer awareness for vast Navajo Nation 3Fujitsu PalmSecure LOGONDIRECTOR Integrates with Passlogix v-GO Access Accelerator Suite 2Fujitsu PalmSecure LOGONDIRECTOR Integrates with Passlogix v-GO Access Accelerator Suite 3Fujitsu PalmSecure LOGONDIRECTOR Integrates with Passlogix v-GO Access Accelerator Suite 4Compendium of pancreatic cancer biomarkers established as strategic approach to early-detection 2Compendium of pancreatic cancer biomarkers established as strategic approach to early-detection 3
(Date:1/22/2015)... Selexis SA, a serial innovation company with ... used for drug discovery to commercial manufacturing, announced today ... Next-Generation Sequencing (NGS) data packages. The NGS analysis ... ensuring the integrity of the gene, validation of the ...
(Date:1/22/2015)... PALO ALTO, Calif. , Jan. 22. 2015  Varian Medical ... equipment and software, has been honored for its commitment to ... most sustainable companies. Varian is the highest ranked healthcare equipment ... ranking, announced today during the World Economic Forum at ...
(Date:12/24/2014)...  United Therapeutics Corporation (NASDAQ: UTHR ) announced ... has submitted a pre-market approval application to the U.S. ... Medtronic,s SynchroMed ® II implantable drug infusion system ... Therapeutics, Remodulin ® (treprostinil) Injection delivered intravenously to ...
(Date:12/24/2014)... 2014 “Preparative & Process Chromatography ... Consumables (Columns, Solvents, Buffers, Valves, Guages, Seals), Accessories, ... - Forecasts to 2019” provides a detailed overview ... market trends, and strategies impacting the preparative and ...
Breaking Biology Technology:Selexis Generated Research Cell Banks Now Fully Sequenced Using Next-Generation Sequencing 2Varian Honored Among World's 100 Most Sustainable Corporations 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 3United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 4Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 2Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 3Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 4
... and Other ... Development Programs, ROCKVILLE, Md., Sept. ... to treat,autoimmune disorders, cancer and infectious diseases, today announced that,it has ... by,Nextech Venture, included additional new investors Arcus Ventures, Innovis,Investments and Eli ...
... Compensation consulting firm plans to release several proprietary diagnostic models that ... , ... San Francisco, CA (PRWEB) September 25, 2008 -- ... help its consultants more efficiently and effectively design compensation structures for ...
... Sept. 24 InVitria,( http://www.InVitria.com ) addressed ... Cell Culture Development" Conference on,September 15-16 in ... optimizing cell culture media using its product ... ), In a presentation of scientific ...
Cached Biology Technology:MacroGenics Raises $25M in Series D-2 Financing 2MacroGenics Raises $25M in Series D-2 Financing 3MacroGenics Raises $25M in Series D-2 Financing 4Presidio Pay Advisors Releases Salary GPS Tool 2InVitria Touts Product Advantages at Cambridge's Cell Culture Conference 2
No-Weigh Dithiothreitol (DTT) ,7.7 mg DTT/Tube x 48 tubes...
... The Fujifilm Life Science LAS-3000 imaging ... with a simplified user interface, providing ... wide range of modularities. The LAS-3000 ... a wide range of applications including: ...
... The Fujifilm Life Science LAS-3000 ... technology with a simplified user interface, ... a wide range of modularities. The ... applications, and the perfect standard system ...
This pump accomodates StemSep ; pump feed columns of the following sizes : 0.3in., 0.5in., 0.6in., and 1.0in.....
Biology Products: