Navigation Links
First orchid fossil puts showy blooms at some 80 million years old
Date:9/2/2007

CAMBRIDGE, Mass. -- Biologists at Harvard University have identified the ancient fossilized remains of a pollen-bearing bee as the first hint of orchids in the fossil record, a find they say suggests orchids are old enough to have co-existed with dinosaurs.

Their analysis, published this week in the journal Nature, indicates orchids arose some 76 to 84 million years ago, much longer ago than many scientists had estimated. The extinct bee they studied, preserved in amber with a mass of orchid pollen on its back, represents some of the only direct evidence of pollination in the fossil record.

"Since the time of Darwin, evolutionary biologists have been fascinated with orchids' spectacular adaptations for insect pollination," says lead author Santiago R. Ramrez, a researcher in Harvard's Museum of Comparative Zoology and Department of Organismic and Evolutionary Biology. "But while orchids are the largest and most diverse plant family on Earth, they have been absent from the fossil record."

The fossil record lacks evidence of orchids, Ram rez says, because they bloom infrequently and are concentrated in tropical areas where heat and humidity prevent fossilization. Their pollen is dispersed only by animals, not wind, and disintegrates upon contact with the acid used to extract pollen from rocks.

Orchids' ambiguous fossil record has fed a longstanding debate over their age, with various scientists pegging the family at anywhere from 26 to 112 million years old. Those arguing for a younger age have often pointed to the lack of a meaningful fossil record as evidence of the family's youth, along with the highly specialized flowers' need for a well-developed array of existing pollinators to survive. Proponents of an older age for orchids had cited their ubiquity around the world, their close evolutionary kinship with the ancient asparagus family, and their bewildering diversity: Some 20,000 to 30,000 species strong, the showy plants c
'/>"/>

Contact: Steve Bradt
steve_bradt@harvard.edu
617-496-8070
Harvard University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. A genes first kiss sets off that affair known as puberty
2. Timing is everything: First step in protein building revealed
3. Emory Eye Center Implants Its First Retinal Chips In Patients With Retinitis Pigmentosa
4. First atlas of key brain genes could speed research on cancer, neurological diseases
5. First-ever Compounds To Target Only Metastatic Cells Are Highly Effective Against Breast, Prostate, And Colon Cancers
6. NYCs First Rapid HIV Drug-resistant AIDS Case Prompts Call to Step Up HIV Prevention
7. First real-time view of developing neurons reveals surprises, say Stanford researchers
8. Love at first smell
9. Worlds largest rainforest drying experiment completes first phase
10. PCRM develops worlds first cruelty-free insulin assay
11. Breast-Cancer Risk Linked to Exposure to Traffic Emissions at Menarche, First Birth
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/11/2014)... the Department of Energy,s Oak Ridge National Laboratory ... R&D Magazine in recognition of the year,s top ... tremendous value of our National Labs," said Secretary ... the National Labs continues to help our nation ... and technological innovations necessary to remain globally competitive." ...
(Date:7/11/2014)... Mills Canyon fire started near the City of Entiat ... local resources, the fire quickly grew to over 1,000 ... of the fire is under investigation by the Washington ... working with existing local resources in developing fire control ... Service (USFS), Washington State Department of Natural Resources, (WA ...
(Date:7/11/2014)... Chicago is creating a new professorship in tissue ... Institute for Molecular Engineering and the Marine Biological ... the Millicent and Eugene Bell Foundation., The Eugene ... the Institute for Molecular Engineering. That endowed chair ... the MBL,s Eugene Bell Center for Regenerative Biology ...
Breaking Biology News(10 mins):ORNL wins eight R&D 100s 2ORNL wins eight R&D 100s 3ORNL wins eight R&D 100s 4New professorship in tissue engineering links molecular engineering, marine biology 2
... The Asian Cancer Research Group (ACRG)an independent, ... Merck (known as MSD outside the United States ... world,s largest genomics organizationtoday announced the publication of ... hepatitis B virus (HBV) integration in hepatocellular carcinoma ...
... Organic Electronics research group at Linkping University previously developed ... ions, as well as biomolecules. Tybrandt has now succeeded ... a similar way to traditional silicon-based electronics. ... carrier consists of chemical substances with various functions. This ...
... are retreating rapidly with the ongoing global climate change. But ... glaciers can recuperate within a short timeframe if temperatures are ... Danish aerial photos combined with both old and modern satellite ... created international attention and have been published as a cover ...
Cached Biology News:ACRG and BGI report findings from genomics research on recurrent hepatitis B virus integration 2ACRG and BGI report findings from genomics research on recurrent hepatitis B virus integration 3Old aerial photos supply new knowledge on glaciers in Greenland 2Old aerial photos supply new knowledge on glaciers in Greenland 3
(Date:7/11/2014)... Research and Markets  has announced the addition of ... Analysis, Size, Share, Growth, Trends and Forecast to 2019" ... http://photos.prnewswire.com/prnh/20130307/600769 Transfection is a technique ... into cells. This technology helps the cells to regulate ... by affecting the nuclear genes. The transfection technology market ...
(Date:7/11/2014)... AZ (PRWEB) July 11, 2014 ... device company specializing in the soft tissue reconstruction ... All-Suture Anchor System for surgeries involving the shoulder ... fixation through a novel, inserter-controlled deployment method. The ... to partial deployment, anchor pull-out, or anchor displacement ...
(Date:7/10/2014)... Boston, Mass. (PRWEB) July 10, 2014 ... , today announced that Alan Swahn, a former vice ... Terascala’s executive team as vice president of marketing. Terascala’s ... from Dell and NetApp create the highest performance and ... has been appointed to guide Terascala’s channel expansion and ...
(Date:7/10/2014)... 10, 2014 Senior supply chain management ... associations, addressed the challenges of “Reducing Cost, Lead Time, ... through strategic sourcing. Describing the partnership of the Bio ... Chain Management Institute ( SCMI) of the University ... 24 at the Kroc Institute of Peace and Justice ...
Breaking Biology Technology:International Transfection Technology Market - Industry Analysis, Size, Share, Growth, Trends and Forecast to 2019 2Cayenne Medical Launches SureLock™ All-Suture Anchor System for Shoulder and Extremity Surgery 2Cayenne Medical Launches SureLock™ All-Suture Anchor System for Shoulder and Extremity Surgery 3Terascala Expands Executive Team 2Terascala Expands Executive Team 3Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 2Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 3Biotech & Biopharm Supply Chain Management Executives Launch BSMA in San Diego 4
... HILL, N.C., April 10 Thought leaders ... Depot, Qualcomm,Nationwide and others will address new ... in today,s competitive economy at the 10th,Annual ... & Retaining Top Talent, sponsored by Best ...
... N.J., April 10 Pharmacopeia,(Nasdaq: PCOP ), ... novel,small molecule therapeutics, today announced that Leslie J. ... Officer and a member of the,Board of Directors ... was,effective April 9, 2008., Joseph A. Mollica, ...
... Thermo Fisher,Scientific Inc. (NYSE: TMO ) announced that ... of 2008 before the market opens on Thursday,April 24, ... same day at 9:00,a.m. Eastern Time., During the ... as well as future expectations. To listen, call (866) ...
Cached Biology Technology:Pharmaceuticals & Biotechs to Share Insights for Developing Leaders in a Fast-Paced, Competitive Industry 2Leslie J. Browne Resigns as President and Chief Executive Officer of Pharmacopeia, Inc. 2Leslie J. Browne Resigns as President and Chief Executive Officer of Pharmacopeia, Inc. 3Leslie J. Browne Resigns as President and Chief Executive Officer of Pharmacopeia, Inc. 4Thermo Fisher Scientific to Hold Earnings Conference Call on Thursday, April 24, 2008 2
... tubes are used to store 2.0 ml ... uniform walls for uniform heat transfer and ... caps. The O-rings are made of polyethylene ... from -55 to 150 degrees C. Supplied ...
Caspr2 Antigen: Fusion protein amino acids 96-1265 (extracellular domain) of human Caspr2 Accession Number: NP_054860...
... its new line of Protein Standards, a ... use in mass spectrometry, molecular biology, and ... are high quality purified proteins for use ... electrospray ionization mass spectrometry (ESI-MS). For ...
Determin interaction of your protein with Echelons lipids...
Biology Products: