Featured Research

from universities, journals, and other organizations

Two Studies On Bee Evolution Reveal Surprises

Date:
December 14, 2006
Source:
Cornell University
Summary:
A 100-million-year-old bee fossil and a DNA study suggest that bees may have originated in the Northern rather than the Southern Hemisphere and from a different family of bees than previously thought.

This 100-million-year-old bee embedded in amber was found in an amber mine in the Hukawng Valley, Kachin state, northern Myanmar (Burma).
Credit: Image courtesy of Cornell University

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.

Related Articles


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 mystery why the bee fossil record only dated back about 65 million years.

Until now, many researchers believed the most primitive bees stemmed from the family Colletidae, which implies that bees originated in the Southern Hemisphere (either South America or Australia). However, the work of Danforth and his group suggests that the earliest branches of the bee's evolutionary tree originate from the family Melittidae. That would mean that bees have an African origin and are almost as old as flowering plants, which would help explain a lot about the evolutionary diversification of these plants.


Story Source:

The above story is based on materials provided by Cornell University. Note: Materials may be edited for content and length.


Cite This Page:

Cornell University. "Two Studies On Bee Evolution Reveal Surprises." ScienceDaily. ScienceDaily, 14 December 2006. <www.sciencedaily.com/releases/2006/12/061209083342.htm>.
Cornell University. (2006, December 14). Two Studies On Bee Evolution Reveal Surprises. ScienceDaily. Retrieved November 23, 2014 from www.sciencedaily.com/releases/2006/12/061209083342.htm
Cornell University. "Two Studies On Bee Evolution Reveal Surprises." ScienceDaily. www.sciencedaily.com/releases/2006/12/061209083342.htm (accessed November 23, 2014).

Share This


More From ScienceDaily



More Plants & Animals News

Sunday, November 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola-Hit Sierra Leone's Late Cocoa Leaves Bitter Taste

Ebola-Hit Sierra Leone's Late Cocoa Leaves Bitter Taste

AFP (Nov. 23, 2014) The arable district of Kenema in Sierra Leone -- at the centre of the Ebola outbreak in May -- has been under quarantine for three months as the cocoa harvest comes in. Duration: 01:32 Video provided by AFP
Powered by NewsLook.com
Anglerfish Rarely Seen In Its Habitat Will Haunt You

Anglerfish Rarely Seen In Its Habitat Will Haunt You

Newsy (Nov. 22, 2014) For the first time Monterey Bay Aquarium recorded a video of the elusive, creepy and rarely seen anglerfish. Video provided by Newsy
Powered by NewsLook.com
Birds Around the World Take Flight

Birds Around the World Take Flight

Reuters - Light News Video Online (Nov. 22, 2014) An imperial eagle equipped with a camera spreads its wings over London. It's just one of the many birds making headlines in this week's "animal roundup". Jillian Kitchener reports. Video provided by Reuters
Powered by NewsLook.com
Could Your Genes Be The Reason You're Single?

Could Your Genes Be The Reason You're Single?

Newsy (Nov. 21, 2014) Researchers in Beijing discovered a gene called 5-HTA1, and carriers are reportedly 20 percent more likely to be single. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins