Navigation Links
Two studies on bee evolution reveal surprises

The discovery of a 100-million-year old bee embedded in amber -- perhaps the oldest bee ever found -- "pushes the bee fossil record back about 35 million years," according to Bryan Danforth, Cornell associate professor of entomology.

Danforth and George Poinar of Oregon State University found the bee embedded in amber from a mine in northern Myanmar (Burma).

A report on this major fossil discovery, which the researchers say supports a new hypothesis in bee evolution, was published in the Oct. 27 issue of Science.

Scientists have long believed that bees first appeared about 120 million years ago -- but previous bee fossil records dated back only about 65 million years. Danforth and Poinar's fossil provides strong evidence for a more remote ancestry. The fact that the bee fossil also has some wasp traits suggests an evolutionary link between wasps and bees.

In a related study, published in the Oct. 10 issue of the Proceedings of the National Academy of Sciences, Danforth and several colleagues from other institutions examined early bees' structures in combination with bee DNA, producing the largest molecular and morphological study to date on bee family-level phylogeny -- the evolutionary development and diversification of a species. Their goal was to examine the early evolutionary pattern of bees and how their evolution relates to the evolution of flowering plants. Flowering plants are among the most diverse organisms that have ever existed -- Charles Darwin called their origin and diversification an "abominable mystery."

More than 16,000 species of bees, organized into seven families, are known to exist. But scientists disagree on which family is the most primitive. Bees are known to affect plant evolution by spreading pollen and preferring to pollinate some types of plants over others. Because scientists assume that bees have essentially always been around, pollinating plants and "creating" new species, it has been a
'"/>

Source:Cornell University News Service


Page: 1 2

Related biology news :

1. New studies suggest airborne SARS transmission is possible
2. Two studies document rise of superbugs in the environment
3. UI researcher studies deafness in fruit flies, humans
4. Biased reporting found in cancer prognostic studies
5. Fruit fly studies open new window on cancer research
6. Why do aneurysms form? New studies suggest leading role for white blood cells
7. Bare metal stents deliver gene therapy to heart vessels with less inflammation in animal studies
8. Diabetes researchers pioneer islet cell xenotransplantation in primate studies
9. Pair of studies offer new clues to combat antibiotic resistance
10. New RNAi tools enable systematic studies of gene function
11. Ernst Mayrs theory illustrated in genetic epidemiology studies
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Two studies bee evolution reveal surprises

(Date:7/25/2014)... broad-scale estimate of air pollution removal by trees nationwide, ... are saving more than 850 human lives a year ... While trees, pollution removal equated to an average air ... of that improvement are substantial. Researchers valued the human ... $7 billion every year in a study published recently ...
(Date:7/25/2014)... people lived on the land now called California, and ... availability of plants they used for food, fuel, tools, ... maintain desired habitat and natural resources. , Frank Lake, ... Station, will lead a field trip to ... Society of America,s 99th Annual Meeting, in Sacramento, Cal. ...
(Date:7/25/2014)... from the Terra satellite show the different areas that have ... Russia. The burn scars show up as reddish-brown splotches ... broken across the remote parts of Eastern Russia in the ... MODIS instrument, it is still possible to see the ... features noted below show the devastating number of fires that ...
Breaking Biology News(10 mins):First national study finds trees saving lives, reducing respiratory problems 2Fire ecology manipulation by California native cultures 2Fire ecology manipulation by California native cultures 3
... OCTOBER 2008 - More than 8,000 international scientists ... Center to participate in the first-ever Joint Annual ... major part of their focus will be agricultural ... major agricultural challenges., When: Oct. 5-9, 2008, Where: ...
... has confirmed the appointment of Esin Gulari, dean of the ... on the National Science Board (NSB). President George W. Bush ... scientists. "This is a tremendous honor for me as ... I will be in a unique position to make contributions ...
... cellulosic ethanol production and use have uncertain environmental consequences ... researchers from the University of Oklahoma and Oklahoma State ... on the need for a science-based policy to address ... Science magazine. Linda Wallace, OU botany professor, ...
Cached Biology News:Agricultural research highlighted in Houston 2US Senate confirms Clemson University engineering Dean Esin Gulari to National Science Board 2Oklahoma researchers support biodiversity in biofuels production 2
(Date:7/26/2014)... July 26, 2014 Canada Endoscopy ... market data on the Canada Endoscopy Visualization Systems ... US dollars, volume (in units) and average prices ... Endoscopy Visualization Systems, Mid-Range Endoscopy Visualization Systems and ... at http://www.marketresearchreports.biz/analysis/213254 . , The report also ...
(Date:7/25/2014)... 2014 "Ischemic Stroke and Cerebral ... data on the Ischemic Stroke and Cerebral Stroke ... and data relating to the clinical trials on ... global Ischemic Stroke Research Report 2014 at: ... the trial numbers and their recruitment status as ...
(Date:7/25/2014)... , July 25, 2014 Amgen (NASDAQ: ... today declared a $0.61 per share dividend for the ... on Sept. 5, 2014, to all stockholders of record ... 2014.  About Amgen Amgen is committed ... from serious illnesses by discovering, developing, manufacturing and delivering ...
(Date:7/25/2014)... MA -- Trillions of bacteria live in each person,s ... help digest food and stave off harmful infections, but ... , To help shed light on the role of ... associate professor Eric Alm recently tracked fluctuations in the ... year. The findings, described in the July 25 issue ...
Breaking Biology Technology:Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 2Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 3Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 4Canada Endoscopy Visualization Systems Market Outlook to 2020: MarketResearchReports.Biz 5Ischemic Stroke and Cerebral Stroke Global Clinical Trials Review H2, 2014: MarketResearchReports.Biz 2Ischemic Stroke and Cerebral Stroke Global Clinical Trials Review H2, 2014: MarketResearchReports.Biz 3Amgen Announces 2014 Third Quarter Dividend 2Amgen Announces 2014 Third Quarter Dividend 3Monitoring the rise and fall of the microbiome 2Monitoring the rise and fall of the microbiome 3
... HOUSTON, Feb. 5 In a paper published in the ... Norman L. Sussman, Brendan M. McGuire and James H. Kelly ... device. "There are currently three times as many patients on ... available and few ways to stabilize them if they enter ...
... Feb. 4 /PRNewswire-Asia-FirstCall/ -- BMP Sunstone,Corporation (Nasdaq: BJGP ... will attend the 2009 UBS Global Healthcare Services,Conference, which will ... to 11th. , Management is currently ... 2009, and hold one-on-one meetings the same day. , ...
... U.S. with New Facility and Personnel Additions to Better ... - As part of an ongoing initiative to expand ... has significantly bolstered its data management resources with the ... larger office space, which will be directed by new ...
Cached Biology Technology:Stem Cell Innovations' PluriCells(TM) to Form the Basis of a Liver Assist Device to Support Patients Waiting for Transplant. 2Stem Cell Innovations' PluriCells(TM) to Form the Basis of a Liver Assist Device to Support Patients Waiting for Transplant. 3BMP Sunstone to Present at UBS Global Healthcare Services Conference 2New General Manager, Transition to New Raleigh Offices Highlight Datatrial's Expansion of North American Operations 2
KNP-1 (HES1) Purified Anti-Mouse, Anti-Rat, Anti-Human, Anti-Dog, Anti-Chicken clone 35, Isotype Mouse IgG 1 , 150 µg Consult technical datasheet for details....
Request Info...
Form: Ready to use Applications: Immunohistology-frozen, Immunohistology-paraffin, Western Blot, ELISA...
... H): 17 3/4" x 8 ... Programmable 0 - 100 hoursControl: Programmable 30 ... 40 user programmable protocols 3 operating modes ... temperature ramp-up from 37 - 95C and ...
Biology Products: