HOME >> BIOLOGY >> NEWS
Research discovers oldest bee, evolutionary link

CORVALLIS, Ore. -- Researchers at Oregon State University have discovered the oldest bee ever known, a 100 million year old specimen preserved in almost lifelike form in amber, and an important link to help explain the rapid expansion of flowering plants during that distant period.

The findings and their evolutionary significance are outlined in an article to be published this week in the journal Science.

The specimen, at least 35-45 million years older than any other known bee fossil, has given rise to a newly-named family called Melittosphecidae insects that share some of the features of both bees and wasps. It supports the theory that pollen-dependent bees evolved from their meat-eating predecessors, the wasps.

"This is the oldest known bee we've ever been able to identify, and it shares some of the features of wasps," said George Poinar, a professor of zoology at OSU and international expert in the study of life forms preserved in ancient amber. "But overall it's more bee than wasp, and gives us a pretty good idea of when these two types of insects were separating on their evolutionary paths."

Just as important, Poinar said, the discovery points to the mechanism that could have allowed for the rapid expansion and diversity of flowering plants around that time the "angiosperms" that depend on some mechanism other than wind to spread their seeds. Prior to that, the world was dominated by "gymnosperms," largely conifer trees, which used wind for pollination and re-seeding.

These changes took place during the Cretaceous Period, which lasted from 65.5 million to 145.5 million years ago. The earliest angiosperms didn't really begin to spread rapidly until a little over 100 millions years ago, a time that appears to correspond with the evolution of bees seen in the new fossil.

"Flowering plants are very important in the evolution of life," Poinar said. "They can reproduce more quickly, develop more genetic diversity, spread mor
'"/>

Contact: George Poinar
poinarg@science.oregonstate.edu
541-752-0917
Oregon State University
25-Oct-2006


Page: 1 2 3

Related biology news :

1. Gilbert Foundation and American Fed for Aging Research award grants on Alzheimers disease
2. Research shows skeleton to be endocrine organ
3. Research aims to identify markers for menopausal women at risk for deadly blood clot
4. Research team enlightens the reasons for severe blindness
5. Research teams uncover risk genes for multiple sclerosis
6. Research shows NPD1 protects a key component of vision
7. Researchers find pathway that controls cell size and division
8. Researchers watch antibiotics, bacteria meet at atomic level
9. Researchers discover gene responsible for Restless Legs Syndrome
10. Research study describes the role part of the brain plays in memory
11. NY Stem Cell Foundations 2nd Annual Translational Stem Cell Research Conference

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/15/2016)... -- Research and Markets has announced the ...  report to their offering.  ,      ... gait biometrics market is expected to grow at ... Gait analysis generates multiple variables such ... compute factors that are not or cannot be ...
(Date:3/31/2016)... RATON, Florida , March 31, 2016 ... LEGX ) ("LegacyXChange" or the "Company") ... for potential users of its soon to be launched ... video ( https://www.youtube.com/channel/UCyTLBzmZogV1y2D6bDkBX5g ) will also provide ... the use of DNA technology to an industry that ...
(Date:3/23/2016)... 23, 2016 ... Gesichts- und Stimmerkennung mit Passwörtern     ... MESG ), ein führender Anbieter digitaler ... mit SpeechPro zusammenarbeitet, um erstmals dessen Biometrietechnologie ... die Möglichkeit angeboten, im Rahmen mobiler Apps ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... ... June 27, 2016 , ... Rolf K. Hoffmann, ... faculty of the University of North Carolina Kenan-Flagler Business School effective ... at UNC Kenan-Flagler, with a focus on the school’s international efforts, leading classes ...
(Date:6/24/2016)... June 24, 2016 Epic Sciences unveiled ... cancers susceptible to PARP inhibitors by targeting homologous ... (CTCs). The new test has already been incorporated ... multiple cancer types. Over 230 clinical ... response pathways, including PARP, ATM, ATR, DNA-PK and ...
(Date:6/23/2016)... ... June 23, 2016 , ... UAS LifeSciences, one of the ... brand, UP4™ Probiotics, into Target stores nationwide. The company, which has been manufacturing ... to its list of well-respected retailers. This list includes such fine stores as ...
(Date:6/23/2016)... , June 23, 2016 Houston Methodist ... the Cy-Fair Sports Association to serve as their ... agreement, Houston Methodist Willowbrook will provide sponsorship support, ... connectivity with association coaches, volunteers, athletes and families. ... the Cy-Fair Sports Association and to bring Houston ...
Breaking Biology Technology:
Cached News: