Navigation Links
Instant evolution in whiteflies: Just add bacteria
Date:4/7/2011

In just six years, bacteria in the genus Rickettsia spread through a population of the sweet potato whitefly (Bemisia tabaci), an invasive pest of global importance. Infected insects lay more eggs, develop faster and are more likely to survive to adulthood compared to their uninfected peers.

The discoveries were made by a University of Arizona-led team of scientists and are published in the April 8 issue of the journal Science.

"It's instant evolution," said Molly Hunter, a professor of entomology in the UA's College of Agriculture and Life Sciences and the study's principal investigator. "Our lab studies suggest that these bacteria can transform an insect population over a very short time."

"It is not uncommon to find a microbe providing some benefits to their hosts, but the magnitude of fitness benefits we found is unusual," she added.

In addition to the observed evolutionary advantages which biologists call fitness benefits Hunter's team discovered that the bacteria manipulate the sex ratio of the whiteflies' offspring by causing more females to be born than males.

According to Hunter, the bacteria are transmitted only through the maternal lineage (from mother to offspring). Therefore, it is beneficial for them to make sure more female than male whiteflies are born.

"However, we don't know how they're doing that yet," she said.

Anna Himler, a postdoctoral research associate in Hunter's lab and the lead author on the research paper, said her team was most surprised by the speed with which the bacteria moved through the whitefly population.

In 2000, the researchers found Rickettsia in only 1 percent of the whiteflies in Arizona. In 2003, the microbes had spread through half of the population, and today, almost all whiteflies in Arizona contain the bacterium.

Whiteflies come in many different species and variants within species called biotypes. Of those, none ar
'/>"/>

Contact: Daniel Stolte
stolte@email.arizona.edu
520-626-4402
University of Arizona
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Instant testing for sore throats wins CIMIT prize
2. Instant acid method offers new insight into nanoparticle dispersal in the environment and the body
3. Small liquid sensor may detect cancer instantly, could lead to home detection kit
4. Through evolution, cavefish have lost sleep
5. Living dinosaurs: The evolutionary history of modern birds
6. Climate change and evolution of Cross River gorillas
7. Some outcomes of the evolutionary race buck conventional wisdom
8. Evolutionary winners and losers revealed in collaborative study
9. Economics and evolution help scientists identify new strategy to control antibiotic resistance
10. Evolution drives many plants and animals to be bigger, faster
11. Genetic analysis reveals history, evolution of an ancient delicacy -- morels
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Instant evolution in whiteflies: Just add bacteria
(Date:1/22/2015)... 22, 2015 Research and Markets ( ... "Global Wearable Technologies Market and Applications, Opportunities, ... and Forecast 2014-2020" report to their offering. ... devices that can be worn on the user,s ...
(Date:12/24/2014)... , Dec. 23, 2014  Since its launch in December 2014, ... to eliminate the pain of trying to remember their usernames ... biometrics fused to their smartphones. To assist people who have ... the company that created 1U and focuses on redefining identity, ...
(Date:12/22/2014)... , Dec. 22, 2014  The 2014 Holiday Season ... as Acuity Market Intelligence reports that the long anticipated ... forecasts that intensifying demand for smart phones, tablets, and ... global market of 2.5 billion users with nearly 4.8 ...
Breaking Biology News(10 mins):Global Wearable Technologies Market and Applications, Opportunities, Industry Analysis, Segmentation, Size, Growth, Share, Overview, Trends and Forecast 2014-2020 21U Offers Best Solution to the Username / Password Dilemma: For FREE! 21U Offers Best Solution to the Username / Password Dilemma: For FREE! 3First Season of Holiday Shopping with Mobile Biometric Payments Wraps Up With a Present for Biometrics Industry: A Rosy Forecast for More Than 2 Billion Users of 4.8 Billion Mobile Biometric Devices by 2020 2
... as well known for keeping us healthy as it is ... a new research report appearing in the March 2010 print ... scientists explain how they developed a genetically modified strain of ... scum, scientifically known as microcystin-LR (MC-LR), which makes water unsafe ...
... silkworm moths, butterflies and spiders, caddisfly larvae spin silk, but ... of Utah researchers have discovered why the fly,s silk is ... as an adhesive tape during surgery. "Silk from caddisfly ... may be useful some day as a medical bioadhesive ...
... of business for any fledgling plant embryo is to determine which ... researchers at the Salk Institute expose the turf wars between two ... polar axis with a root on one end and a shoot ... important decision for a plant, setting up the root/shoot axis, occurs ...
Cached Biology News:Glue, fly, glue 2Glue, fly, glue 3Glue, fly, glue 4Glue, fly, glue 5Root or shoot 2Root or shoot 3
(Date:1/22/2015)... , Jan. 22, 2015   GenoSpace , a precision medicine ... to enable the broad use of genomic, imaging and other ... appointment of Michelle Munson , CEO of Aspera, an ... Logo - http://photos.prnewswire.com/prnh/20150122/170713 "We ...
(Date:12/24/2014)... YORK , Dec. 24, 2014 PlasmaTech Biopharmaceuticals, Inc. ... critical areas, announced the closing of an underwritten public offering ... up to an aggregate 3,500,000 shares of common stock, at ... warrant.  The warrants have a per share exercise price of ...
(Date:12/24/2014)... 2014 GMO corn cases filed across the ... the process of being consolidated in a Kansas federal court ... AG MIR 162 Corn Litigation, MDL No. 2591 in the ... of the Syngenta GMO corn multidistrict litigation (MDL) has been ...
(Date:12/24/2014)... Island, New York (PRWEB) December 23, 2014 ... and the Long Island Affiliate of ITRA Global, the national ... slow but steady recovery. This is evidenced by the ... the strong stock market. Low energy costs have held ...
Breaking Biology Technology:GenoSpace Expands Board with Appointment of Michelle Munson 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 2PlasmaTech Biopharmaceuticals, Inc. Announces Closing of Public Offering 3Carey Danis & Lowe Reports on Syngenta GMO Corn Transfer Order 2ITRA Global Reports Long Island Is Out of Sync With The National Office Market 2ITRA Global Reports Long Island Is Out of Sync With The National Office Market 3
... -- I continue to be encouraged by the numerous ... Midwest. Here are just a few: , ,& bull; The ... 2006. , ,& bull; The continued acquisition of Midwest ... recognize the value of Midwest products and technology, the flip ...
... in Memphis, Tenn., will install a wireless distribution ... organization's corporate office under a $6 million agreement with ... distribution system will provide wireless coverage throughout Baptist's six ... system, which will be installed in the next 12 ...
... a biophysical chemist at the University of Wisconsin-Madison, has ... the Biophysical Society, a 7,000-member U.S. organization that represents ... and biochemistry, Record hopes that the new honor will ... funding for his research. , ,A UW-Madison faculty member ...
Cached Biology Technology:Midwest biotech on a roll 2Midwest biotech on a roll 3Midwest biotech on a roll 4
... Engine Dyad instrument is the most advanced ... MJ's world-class thermal performance, the Dyad also ... well as point-and-click navigation via touch pad ... be easily and economically expanded to a ...
...
...
... instrument is the most advanced thermal cycler ... thermal performance, the Dyad also boasts graphical ... point-and-click navigation via touch pad or mouse. ... and economically expanded to a four-bay system ...
Biology Products: