HOME >> BIOLOGY >> NEWS
Size and positioning of floral anthers facilitates

Unlike moths and butterflies that are often brilliantly colored to warn potential predators that they carry toxins, flowers and the fruits they produce have brilliant colors and unusual shapes because they want to attract the attention of pollinators and frugivores who will disperse their pollen and seed, thus guaranteeing the next generation. In their work, Dr. Endress and his colleagues found that the sizes and positioning of the anthers facilitates pollen collection by buzz-pollinating bees. The male floral structures, anthers, release the pollen gradually, like tiny gumball dispensers. All of these characteristics--size, shape, placement, and timingmay be controlled by networks of genes as well as by regulatory sequences that do not encode proteins. Slight changes in these networks or in the non-coding sequences can change the developmental pattern of a flower and thus its morphologyeither dooming it if its pollinators can no longer fit properly or guaranteeing the success of the species if it acquires new pollinators. This type of information is becoming ever more critical as we struggle to understand, maintain, and modify the plant and pollinator systems that we depend on for life.

Evo-Devo, or the linking of evolution and development is a shift in the paradigm of how organisms evolved and diversified. In a symposium at the joint annual meeting of the American Society of Plant Biologists and the Botanical Society of America (July 7-11), Dr. Peter Endress of the Institute of Systematic Botany at the University of Zurich will present his work on the functional architecture of flowers and the role of development in floral evolution.

Charles Darwin, who observed closely the productions of breeders of pigeons, dogs, and flowers, understood that explaining the evolution and diversity of living organisms, from mosses to elephants, would require an understanding of development. In his presentation at a joint ASPB and BSA symposium on evolutiona
'"/>

Contact: Brian Hyps
bhyps@aspb.org
240-354-5160
American Society of Plant Biologists
8-Jul-2007


Page: 1 2 3

Related biology news :

1. Size and positioning of floral anthers facilitates pollen collection by bees
2. The floral network -- what determines who pollinates whom
3. Research suggests fitness of Florida panthers improved by limited breeding with Texas animals
4. Genomatix technology facilitates de novo identification of new renal disease associated genes

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Size and positioning floral anthers facilitates

(Date:10/15/2014)... the 44th Rosenstiel Award for Distinguished Work in Biomedical ... the mechanisms of genomic instability and its implications for ... second alumnus to win the Rosenstiel Award; the first, ... Alt is the Charles A. Janeway Professor of Pediatrics ... an investigator at the Howard Hughes Medical Institute at ...
(Date:10/14/2014)... shows SIRT6—a protein known to inhibit the growth ... skin cancers by turning on an enzyme that increases ... Previously considered protective, SIRT6 is part of a family ... stability and prevent some of the genetic flaws associated ... lead to cancer. This study, in the journal,s October ...
(Date:10/14/2014)... of the planet,s leading questions is how to produce ... variable climate. The Food and Agriculture Organization of the ... over the next 40 years to feed a growing ... the necessary rise in food production. Plants—grains, cereals, ... supporting livestock. Current research must tap into our ...
Breaking Biology News(10 mins):Brandeis awards 44th Rosenstiel Award to pioneering geneticist Fred Alt 2Two-faced gene: SIRT6 prevents some cancers but promotes sun-induced skin cancer 2Building a bridge from basic botany to applied agriculture 2Building a bridge from basic botany to applied agriculture 3
(Date:10/22/2014)... YORK , Oct. 22, 2014 Nuvilex, ... Federation, approximately 400 million people worldwide are living with ... million people by 2030.  The global market for diabetes ... 2012 approximately 330,000 people worldwide died from pancreatic cancer.  ... death due to cancer in the United ...
(Date:10/22/2014)... and HONG KONG , Oct. ... disease therapeutics enterprise, announced today that rare disease expert ... as vice president, research. Dr. McKew brings more than ... leadership positions at the National Institutes of Health, Wyeth ... by Wyeth). Dr. McKew will lead aTyr,s efforts to expand ...
(Date:10/20/2014)... YORK , Oct. 20, 2014 ... their experimental ZMapp™ antibody therapeutic to fight the ... how difficult and time-consuming the production of pharmaceuticals ... market research publisher said that while some may ... of this compound, those with industry knowledge are ...
(Date:10/20/2014)... , Oct. 20, 2014 Asterias ... the Company has signed a Notice of Grant ... Medicine (CIRM), effective October 1, 2014.  The NGA ... payments and the release of additional grant funds ... grant award for clinical development of Asterias, product, ...
Breaking Biology Technology:Nuvilex Brief Analyst Report: Thinking Outside the Box by BrokerBank Securities, Inc. 2aTyr Pharma Appoints John C. McKew, Ph.D., as Vice President, Research 2aTyr Pharma Appoints John C. McKew, Ph.D., as Vice President, Research 3Kalorama: ZMapp Highlights Need For Faster Biopharmaceutical Production 2Kalorama: ZMapp Highlights Need For Faster Biopharmaceutical Production 3Asterias Biotherapeutics Announces Notice of Grant Award with CIRM for Phase 1/2a Clinical Trial of AST-OPC1 in Complete Cervical Spinal Cord Injury 2Asterias Biotherapeutics Announces Notice of Grant Award with CIRM for Phase 1/2a Clinical Trial of AST-OPC1 in Complete Cervical Spinal Cord Injury 3Asterias Biotherapeutics Announces Notice of Grant Award with CIRM for Phase 1/2a Clinical Trial of AST-OPC1 in Complete Cervical Spinal Cord Injury 4
Cached News: