Navigation Links
For certain orchids, relatives more important than pollinators in shaping floral attractants
Date:10/26/2011

Bees, bats, and moths all follow their noses in search of food from flowers. Plants that rely on such animals for pollination often produce particular chemical scents that attract specific pollinators. However, the ability to produce certain chemicals is also determined by a plant's genetics, or phylogenetic history, which can potentially limit its ability to respond to pollinator pressures. So which is more important in the evolution of floral scents: pollinator-induced natural selection or phylogenetic constraints?

While pollinators are often thought to be the driving force behind the type of chemicals plants produce to attract them, no matter how closely related the plants are to each other, a new study by Kim Steiner and colleagues published in the October issue of the American Journal of Botany (http://www.amjbot.org/content/98/10/1663.full) reveals that phylogeny may be more important than pollinators in determining floral scent characteristics in a group of specialized South African orchids.

"The evolution of any plant or animal character, be it morphological or something as seemingly intangible as a floral scent composed of many specific compounds, is a product of the balancing forces of natural selection and phylogenetic constraint," notes Steiner (University of Kwazulu-Natal, Pietermaritzburg, South Africa).

"While the results of natural selection, or pollinator-mediated selection, generally produce the most fascinating examples of evolution -- such as the extraordinarily long spurs of the Angraecum orchid (Darwin's orchid) and the equally extraordinarily long proboscis of its hawkmoth pollinator -- many characteristics are shared between closely related species simply as the result of their common ancestry, and it is important to be aware that this common ancestry can have a strong influence on the outcome of natural selection," Steiner says.


'/>"/>
Contact: Richard Hund
rhund@botany.org
314-577-9557
American Journal of Botany
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. St. Jude identifies genomic causes of a certain type of leukemia relapse
2. UCSB scientists show how certain vegetables combat cancer
3. Dealing with taxonomic uncertainty for threatened and endangered species
4. Study unravels why certain fishes went extinct 65 million years ago
5. New evidence explains poor infant immune response to certain vaccines, says MU researcher
6. Shellfish face an uncertain future in a high CO2 world
7. MSU discoveries upend traditional thinking about how plants make certain compounds
8. Mango effective in preventing, stopping certain colon, breast cancer cells
9. Ongoing human evolution could explain recent rise in certain disorders
10. Consumption of certain fish during pregnancy associated with poorer cognitive performance
11. Long-term use of certain contraception injections associated with increased fracture risk
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
For certain orchids, relatives more important than pollinators in shaping floral attractants
(Date:8/20/2015)... Aug. 20, 2015   Sensory, Inc ., ... the user experience and security of consumer electronics ... announced that its TrulySecure™ is the ... to be FIDO Certified™. The FIDO ... with the FIDO UAF (Universal Authentication Framework) 1.0 ...
(Date:8/19/2015)... , Aug. 19, 2015  VOXX International ... it has entered into a Definitive Agreement to ... of iris authentication market leader EyeLock through an ... will have a controlling interest in the acquiring ... to completion of due diligence.  Expanding on its ...
(Date:8/18/2015)... 17, 2015 Research and Markets ( ... "Global Biometric Authentication & Identification Market: Focus ... Forecast, 2015-2020" report to their offering. ... systems market is expected to grow at an ... and generate over $25 billion (approximately) by 2020 ...
Breaking Biology News(10 mins):TrulySecure From Sensory Becomes First Face and Voice Biometrics Technology to be FIDO UAF Certified 2TrulySecure From Sensory Becomes First Face and Voice Biometrics Technology to be FIDO UAF Certified 3TrulySecure From Sensory Becomes First Face and Voice Biometrics Technology to be FIDO UAF Certified 4TrulySecure From Sensory Becomes First Face and Voice Biometrics Technology to be FIDO UAF Certified 5VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 2VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 3VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 4VOXX International Corporation Signs Definitive Agreement To Acquire The Assets And A Controlling Interest Of Biometric Leader EyeLock 5Global Biometric Authentication & Identification Market 2015: Focus On Modality, Motility & Application - Estimation & Forecasts to 2020 for the $25 Billion Industry 2
... Health announced today that the University of Cincinnati will ... Science Award (CTSA) consortium. Led by the National Center ... national network of medical research institutions is working together ... treatments for patients, to engage communities in clinical research ...
... Authentication Technology Adds Robust Biometric Identification to ... ComplianceSUNNYVALE, Calif., April 6 Fujitsu Computer ... of innovative computer products including hard disk ... announced the integration of its ...
... (IODP), the world,s largest ocean research program, has ... by welcoming Australia, India, and New Zealand as ... membership is agreed upon in a memorandum signed ... Japan,s Ministry of Education, Culture, Sports, Science and ...
Cached Biology News:NIH Clinical and Translational Science Consortium grows to 39 members 2Fujitsu PalmSecure LOGONDIRECTOR Integrates with Passlogix v-GO Access Accelerator Suite 2Fujitsu PalmSecure LOGONDIRECTOR Integrates with Passlogix v-GO Access Accelerator Suite 3Fujitsu PalmSecure LOGONDIRECTOR Integrates with Passlogix v-GO Access Accelerator Suite 4Australia, India, New Zealand join integrated ocean drilling program 2
(Date:8/26/2015)...  Roka Bioscience, Inc. (NASDAQ: ROKA ), a ... for the detection of foodborne pathogens, today announced that ... & Company Emerging Growth Conference on September 2 at ... New York Marriott Marquis. A live ... investor relations section of Roka Bioscience,s website at ...
(Date:8/26/2015)... Aug. 26, 2015  Platform therapeutic company Symic ... received a $1.5M Phase II SBIR grant from ... develop its therapeutic agent to reduce arteriovenous fistula ... end stage renal disease (ESRD) patients undergoing hemodialysis. ... of Diabetes and Digestive and Kidney Diseases (NIDDK), ...
(Date:8/26/2015)... Aug. 26, 2015 China Cord Blood Corporation ... leading provider of cord blood collection, laboratory ... services, today announced that the Company has been informed ... entity wholly owned by Mr. Yuen Kam, chairman of ... the outstanding shares (the "Shares") of  Excellent China Healthcare ...
(Date:8/26/2015)... ... , ... PRC Clinical, a Clinical Trial Management Expert CRO, will ... southern California. The Clinical Trial Management Expert CRO seeks to introduce more California-based sponsors ... , Stem Cell Meeting on the Mesa on October 7-9 ...
Breaking Biology Technology:Symic Biomedical Awarded $1.5MM NIH Phase II SBIR Grant to Develop its Proteoglycan Mimetic Therapeutics to Reduce Vascular Access Failures in ESRD 2Symic Biomedical Awarded $1.5MM NIH Phase II SBIR Grant to Develop its Proteoglycan Mimetic Therapeutics to Reduce Vascular Access Failures in ESRD 3China Cord Blood Corporation Receives Notice of Transactions Regarding its 7% Senior Convertible Notes Due 2017 2China Cord Blood Corporation Receives Notice of Transactions Regarding its 7% Senior Convertible Notes Due 2017 3PRC Clinical To Attend Major Industry Conferences And Meet Sponsor Companies In The San Diego Biotech Hub 2PRC Clinical To Attend Major Industry Conferences And Meet Sponsor Companies In The San Diego Biotech Hub 3
... YORK, May 24, 2011 Reportlinker.com announces that ... its catalogue: Analytical Tool - ... Executive Summary ... analyzing the vast amount of strategic possibilities that ...
... DNA base pairs the individual molecules that make ... toward personalized medicine. Being able to isolate, study and ... diagnostic testing, therapies and treatments based on each patient,s ... isolate individual molecules like DNA base pairs, which are ...
... 23, 2011 DATATRAK International, Inc. (OTCQX: DATA), a ... for the clinical trials industry, today announced the Company,s ... for the second consecutive year. "Being ... the hard work and dedication DATATRAK and its employees ...
Cached Biology Technology:Reportlinker Adds Analytical Tool - Lymphoma 2Reportlinker Adds Analytical Tool - Lymphoma 3Particle trap paves way for personalized medicine 2DATATRAK Recognized as 2011 Crain's Leading EDGE Award Winner 2
...
...
Immunogen: Synthetic peptide (aa sequence is considered to be commercially sensitive) Storage: -20 C, Avoid Freeze/Thaw Cycles...
IHC detection kit for BrdU in cells and tissues...
Biology Products: