Navigation Links
Don't be fooled: Flowers mislead traditional taxonomy
Date:3/4/2013

For hundreds of years, plant taxonomists have worked to understand how species are related. Until relatively recently, their only reliable source of information about these relationships was the plants' morphologytraits that could be observed, measured, counted, categorized, and described visually. And paramount among these morphological traits were aspects of flower shape and arrangement.

In the papilionoid legumesa large, diverse group that includes the common pea and beanmost species have highly specialized, "butterfly-shaped" flowers with bilateral symmetry, fused stamens, and strongly differentiated standard, wing, and keel petals. Papilionoid genera with radially symmetric or weakly differentiated flower parts have been regarded as primitive members of the group. However, an international team of researchers have found that floral morphologies may be less reliable than other traits in determining the relationships of papilionoid species and genera. Their findings can be found in the recent issue of the American Journal of Botany.

Lead author Domingos Cardoso (Universidade Estadual de Feira de Santana in Bahia, Brazil) was intrigued by the floral diversity of papilionoid legumes. Growing up in the Caatinga regiona unique dry woodland biome in northeastern Brazil with many endemic legume speciesCardoso was fascinated by the beautiful mass flowering of leafless Luetzelburgia trees during the dry season. Despite their abundance in the Caatinga,Luetzelburgia species were poorly represented and often misidentified in herbaria. Furthermore, taxonomists had generally regarded Luetzelburgia and the putatively related Sweetia as primitive papilionoid groups because they lack the characteristic papilionate flowers. Yet, evidence from DNA sequences suggested that these plants were closely related to two rainforest genera with t
'/>"/>

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

Page: 1 2

Related biology news :

1. Quick detection of periodontitis pathogens
2. In the Eastern US, spring flowers keep pace with warming climate
3. Insect-eating bat outperforms nectar specialist as pollinator of cactus flowers
4. High-speed video and artificial flowers shed light on mysteries of hummingbird-pollinated flowers
5. Scientists discover switch in plants to create flowers
6. Traditional fisheries management approach jeopardizes marine ecosystems worldwide
7. By adding VSL#3 probiotic to traditional therapies UC patients can improve remission rates
8. Pain relief with PAP injections may last 100 times longer than a traditional acupuncture treatment
9. Some improved cookstoves may emit more pollution than traditional mud cookstoves
10. The Japanese traditional therapy, honokiol, blocks key protein in inflammatory brain damage
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Don't be fooled: Flowers mislead traditional taxonomy
(Date:4/17/2014)... One day about eight years ago, Katia Silvera , ... her father were on a field trip in a mountainous ... they had never seen before. , Unable to identify it, ... The orchid turned out to be an unnamed species. So ... . , "Lophiaris" is the genus name, comprising about 40 ...
(Date:4/17/2014)... If a restaurant ... he can expect his premises to be trashed. Warnings like ... is enough to make restaurant owners pay up. Similarly, mafia-like ... in other birds, nests. If the host birds throw the ... destroying the entire nest. Consequently, it is beneficial for hosts ...
(Date:4/17/2014)... fragmentation of forests in the Amazon help create ... to rapid and widespread forest loss during drought ... findings show that forests in the Amazon could ... with forest fires lead to large-scale loss of ... assistant professor of geography, Penn State. , "We ...
Breaking Biology News(10 mins):Orchid named after UC Riverside researcher 2Orchid named after UC Riverside researcher 3Fear of the cuckoo mafia 2Fear of the cuckoo mafia 3Drought and fire in the Amazon lead to sharp increases in forest tree mortality 2Drought and fire in the Amazon lead to sharp increases in forest tree mortality 3
... An international team of investigators at Sanford-Burnham Medical Research ... Centre for Molecular Life Sciences and other organizations have ... also plays a significant role in Frank-Ter Haar syndrome ... on February 12 in the American Journal of ...
... CINCINNATI -- Scientists have discovered a molecular pathway that works ... may lead to new therapies for repairing injury in a ... week,s Proceedings of the National Academy of Sciences ... Children,s Hospital Medical Center and the Brigham & Women,s Hospital ...
... reveals that a common underlying mechanism is shared by ... complex defects in brain development and function. Rett syndrome ... Retardation, X-linked syndrome (ATR-X) have each been linked with ... DNA that make up chromosomes and control how genetic ...
Cached Biology News:Researchers identify mechanism for Frank-Ter Haar syndrome 2Scientists discover molecular pathway for organ tissue regeneration and repair 2A common thread links multiple human cognitive disorders 2
(Date:1/15/2014)... Rochester, NY (PRWEB) January 15, 2014 The ... cause a major disease. One of these latent viruses is ... is rheumatoid arthritis (RA). Rheumatoid arthritis (RA) is a chronic ... the theory, a study found that RA patients have high ...
(Date:1/15/2014)... (PRWEB) January 15, 2014 2013 was ... Scottsdale’s Brain State Technologies®. They saw continued independent research ... Center who were awarded a $1 million grant from ... in “Brain and Behavior” a peer reviewed journal, Amy ...
(Date:1/15/2014)... AudioNotch is the internet's leading provider ... treatment of tinnitus. Patients listen to sound therapy that ... period of weeks to months, their tinnitus volume decreases. , ... Notched Music and Notched White Noise. Now, AudioNotch is pleased ...
(Date:1/14/2014)... Date: Friday, April 11, 2014 , Time: ... 1360 Almshouse Road, Warrington, Pa. , Details: The ... to finding a cure for hepatitis B and improving the ... annual Crystal Ball on Friday, April 11 at Warrington Country ...
Breaking Biology Technology:Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 2Study: Rheumatoid Arthritis (RA) Patients Have EBV; The CBCD Says this is Consistent with Microcompetition 3Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 2Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 3Hepatitis B Foundation to Host Annual Crystal Ball Gala 2
... the Risks of DVT to Mark U.S. House of ... Coalition to Prevent DVT today announced the launch of ... deep-vein thrombosis (DVT) and to encourage dialogue between healthcare ... A customized recreational vehicle will visit hospitals and ...
... Christine Lawless, MD, has accepted the position as Medical ... medical education (CME), beginning March 2, 2009. Recognized as ... cardiology, Dr. Lawless recently completed her clinical tenure at ... she was Associate Professor of Internal Medicine and Co-Director ...
... March 10 WaferGen Biosystems, Inc. (OTC Bulletin ... analysis systems, today announced that Kumar Kastury, Ph.D., ... will present data on the company,s SmartChip(TM) Real-Time ... Anniversary Quantitative PCR Conference. The conference will ...
Cached Biology Technology:The Coalition to Prevent Deep-Vein Thrombosis (DVT) RV Tour Takes to the Road to Educate the Nation About the Importance of DVT Risk Assessment 2The Coalition to Prevent Deep-Vein Thrombosis (DVT) RV Tour Takes to the Road to Educate the Nation About the Importance of DVT Risk Assessment 3The Coalition to Prevent Deep-Vein Thrombosis (DVT) RV Tour Takes to the Road to Educate the Nation About the Importance of DVT Risk Assessment 4The Coalition to Prevent Deep-Vein Thrombosis (DVT) RV Tour Takes to the Road to Educate the Nation About the Importance of DVT Risk Assessment 5Former President of Sports Cardiology Consultants, LLC Christine Lawless, MD, MBA, ABCL, FACC, FACSM, Named Medical Director of CME Enterprise 2WaferGen to Present Data on SmartChip(TM) Real-Time PCR System at Cambridge Healthtech Institute's Quantitative PCR Conference 2WaferGen to Present Data on SmartChip(TM) Real-Time PCR System at Cambridge Healthtech Institute's Quantitative PCR Conference 3WaferGen to Present Data on SmartChip(TM) Real-Time PCR System at Cambridge Healthtech Institute's Quantitative PCR Conference 4
iNOS/NOS Type II Purified Anti-Mouse, Anti-Rat, Anti-Human clone Polyclonal, Isotype Rabbit Ig, 150 µg Consult technical datasheet for details....
...
... gradient system uses two Adept CE 4100 ... CE 4200 dual wavelength detector for added flexibility. ... by PowerStream data processing software and interface unit, ... The supplied analytical pumps may be substituted ...
... Highly nutritious peptone, used ... production of bacterial toxins, ... of bacteria with high ... Haemophilus, Neisseria, Pasteurella, Salmonella ...
Biology Products: