Navigation Links
Too many relatives ruining your picnic? Be glad the flies don't invite their cousins
Date:4/18/2011

AMES, Iowa When your family members gather at a picnic in your backyard, there may be 10 to 20 people -- maybe more -- enjoying your barbecue.

When flies visit your party, be glad they don't bring their entire family.

Houseflies have more than 152,000 cousins. And those are just the ones we know about.

An Iowa State University researcher is one of a team of scientists who have recently researched the fly family tree -- one of the most complicated in the animal world.

"It really isn't a tree, it's sort of a bush," said Gregory Courtney, professor of entomology, explaining the complex relationships between fly relatives.

"Because of this, and because the history of flies extends more than 260 million years, it's difficult figuring out the relationships between this branch and that branch," he added.

The problem with tracking fly evolution is that every so often, a species of fly will branch into two different species, and then those two will split again, and again and so forth, he said.

If a series of these branches or dichotomous splits occurs over a brief period of time, the result will be a rapid radiation of new flies and an evolutionary tree that may look more like a bush.

Based on the research of Courtney and his colleagues, at least three episodes of rapid radiation have occurred in the history of flies.

"[The fly family tree] probably involves dichotomous splits," said Courtney. "But we can't always resolve these when there are lots of dichotomous splits going on at the same time."

"One of the nice results of this research was confirmation that a number of episodic radiations may have occurred. That explains some of the difficulty we've had in resolving relationships of different types of flies," he added.

One of Courtney's favorite flies is a group called mountain midges (Deuterophlebia), which the current study suggests is the oldest group of flies, a
'/>"/>

Contact: Gregory Courtney
gwcourt@iastate.edu
515-294-4017
Iowa State University
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Seedlings thrive with distant relatives, seeds with close family
2. New research shows dolphin by-catch includes genetic relatives
3. New book reviews research on p53 -- the guardian of the genome -- and its relatives
4. Instant evolution in whiteflies: Just add bacteria
5. In fireflies, flightless females lose out on gifts from males
6. Could mutant flies give epilepsy sufferers greater peace of mind?
7. Wheat resistance genes failing, new approach needed to stop flies
8. Texas A&M study finds courtship affects gene expression in flies
9. Wildflower colors tell butterflies how to do their jobs
10. Orchid tricks hoverflies
11. Study finds monarch butterflies use medicinal plants to treat offspring for disease
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Too many relatives ruining your picnic? Be glad the flies don't invite their cousins
(Date:8/29/2014)... USA - The rise of the Tibetan plateau -- ... -- is important for both its profound effect on ... study published in GSA Bulletin , Katharine Huntington ... isotope thermometry -- using modern and fossil snail shells ... in southwestern Tibet. , Views range widely on ...
(Date:8/28/2014)... bacterial culprits that may drive inflammatory bowel diseases (IBD) ... own intestinal immune responses as a guide. , The ... Cell . , Trillions of bacteria exist within the ... the development and progression of IBD. Yet it,s thought ... a person,s susceptibility to IBD and its potential severity. ...
(Date:8/28/2014)... neighbors than traditional cigarettes, but still release toxins ... from USC. , Scientists studying secondhand smoke from ... to harmful particles, with close-to-zero exposure to organic ... metals in second-hand e-cigarette smoke were found to ... high levels of polycyclic aromatic hydrocarbons cancer-causing ...
Breaking Biology News(10 mins):Snails tell of the rise and fall of the Tibetan Plateau 2Snails tell of the rise and fall of the Tibetan Plateau 3Snails tell of the rise and fall of the Tibetan Plateau 4Snails tell of the rise and fall of the Tibetan Plateau 5Snails tell of the rise and fall of the Tibetan Plateau 6Snails tell of the rise and fall of the Tibetan Plateau 7Yale study identifies possible bacterial drivers of IBD 2Second-hand e-cig smoke compared to regular cigarette smoke 2
... a common genetic disorder previously linked to lung disease ... lung cancer, according to a report in the May ... the JAMA/Archives journals. The disorder, alpha1-antitrypsin deficiency (1ATD), ... the U.S. population and especially those of European descent, ...
... NEW YORK (May 23, 2008) A study led ... Columbia University Medical Center/NewYork-Presbyterian and chairman of the Cardiovascular ... were administered the direct thrombin inhibitor bivalirudin during primary ... a lower rate of major bleeding, and a lower ...
... Institute of Pacific Islands Forestry have submitted a proposal ... of strawberry guava, a South American tree that has ... introduced in 1825 as a garden plant. The scientists ... Land and Natural Resources, and Hawai Department of Agriculture, ...
Cached Biology News:Genetic mutation associated with increased risk of lung cancer 2Findings released from 1 of the largest percutaneous coronary intervention trials ever 2Insect release proposed to control exotic strawberry guava 2
(Date:8/29/2014)... Burnt Hills, NY (PRWEB) August 29, 2014 ... at Burnt Hills Veterinary Hospital are seeking candidates to ... for dogs with osteoarthritis. The ultimate goal of ... of donor stem cells into one or two arthritically ... the treated joints. , Candidates for the current ...
(Date:8/29/2014)... August 29, 2014 Intrinsic Imaging, ... certified, GAMP® 5 compliant imaging core lab, announced ... Phase II clinical trial to assess a new ... this trial, Intrinsic Imaging will provide comprehensive imaging ... protocol and charter development, site qualification, site training ...
(Date:8/28/2014)... “This kit has an improved extraction efficiency and provides users ... said Mark Tess, PhD, Mycotoxin Product Manager for Charm Sciences. ... USDA-GIPSA inspection agencies that have a need to detect aflatoxin ... a matter of minutes with nothing but our equipment and ... grain before accepting it, but they no longer have to ...
(Date:8/28/2014)... PA (PRWEB) August 28, 2014 The ... create a culture that will allow individuals to perform ... becoming increasingly important for employers looking to compete in ... industries are embracing this trend, as the sector increasingly ... of a company, which will have real results on ...
Breaking Biology Technology:Burnt Hills Veterinary Hospital Seeks Candidates for an Investigational Study of Stem Cells for Dogs with Arthritis 2Intrinsic Imaging Awarded Phase II Clinical Trial to Assess New Treatment for Non-Hodgkin’s Lymphoma 2Klein Hersh International Leads Philadelphia Area Life Science Industry in Company Culture 2Klein Hersh International Leads Philadelphia Area Life Science Industry in Company Culture 3
... - Companies that operate in the clean technology industry ... soon will have the opportunity to impress the 600 investors ... Capital Forum in San Francisco. , , Orion Energy ... Madison are among 20 emerging clean technology companies that will ...
... fellow travelers a thing or two about commuting. , ,The ... an executive-in-residence and one of its portfolio companies, Caden ... , Gregg Fergus And since Fergus has been ... his new posts reduce the distance between home and work. ...
... a judge for an industry award contest. It wasn't the Oscars. ... conference room at the Sheraton at Los Angeles International Airport ... of this year's Medical Design Excellence Awards (MDEA). , ... MDEA winners may very well save your life some day. , ...
Cached Biology Technology:Biotech executive books a career flight that's closer to home 2Biotech executive books a career flight that's closer to home 3And the winners in medical design are 2And the winners in medical design are 3And the winners in medical design are 4And the winners in medical design are 5And the winners in medical design are 6
Request Info...
... the consumable measurement plate for ... individually controlled measurement sites. Each ... liquid flow channel system that ... solution and compound applications necessary ...
... application capable of dynamic scheduling, is designed ... lab automation workcells easy for lab personnel, ... programmers. • Users create methods ... you can build a flowchart, you can ...
... to grow, the need for greater detection ... necessary, especially when discerning very similar or ... Confocal Microscope System gives you a level ... available in conventional confocal systems, with detectors ...
Biology Products: