Navigation Links
Genetic mutation depicted in van Gogh's sunflower paintings revealed by scientists
Date:3/31/2012

In addition to being among his most vibrant and celebrated works, Vincent van Gogh's series of sunflower paintings also depict a mutation whose genetic basis has, until now, been a mystery. In a study published in PLoS Genetics, a team of University of Georgia scientists reveal the mutation behind the distinctive, thick bands of yellow "double flowers" that the post-Impressionist artist painted more than 100 years ago.

The most common sunflower trait is a composite flower head that contains a single whorl of large, flattened, yellow ray florets on the outer perimeter and hundreds to over a thousand individual, tubular, disc florets that can produce seeds. The double-flowered mutants that van Gogh depicted in many of his paintings, on the other hand, have multiple bands of yellow florets and a much smaller proportion of internal disc florets.

To understand the genetic basis of this difference, senior author John Burke, professor of plant biology in the UGA Franklin College of Arts and Sciences, and his colleagues began by using the same plant crossing techniques that Gregor Mendel, a 19th century contemporary of van Gogh, used to lay the foundation of modern genetics. The scientists crossed the common, or "wild type", variety of sunflower with the double-flowered variety, and their initial findings suggested that a single, dominant gene was responsible for creating the double-flowered mutation. Subsequent crosses of the offspring revealed that a second mutation, which is recessive to both the double-flowered mutation and the wild-type version of the gene, results in a third flower type that is intermediate in form, being elongated and yellow, but tubular and containing the reproductive structures of the interior florets.

The scientists identified the responsible gene and sequenced it to show that in the double-flowered mutation, the portion of the gene that functions as an on/off switch is disrupted, so that the instructions
'/>"/>

Contact: Sam Fahmy
sfahmy@uga.edu
706-542-6049
Public Library of Science
Source:Eurekalert

Page: 1 2

Related biology news :

1. Rare genetic disorder gives clues to autism, epilepsy, mental retardation
2. Genetic Engineering & Biotechnology News reports on growing role of molecular diagnostics
3. Study finds genetic variant plays role in cleft lip
4. Genetic finding implicates innate immune system in major cause of blindness
5. American College of Medical Genetics receives $13.5M NIH contract
6. Clue to genetic cause of fatal birth defect
7. Can genetic information be controlled by light?
8. The American Society of Human Genetics hosts 58th Annual Meeting in Philadelphia
9. Modern genetics vs. ancient frog-killing fungus
10. Genetic based human diseases are an ancient evolutionary legacy
11. Genetic evidence for avian influenza movement from Asia to North America via wild birds
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/23/2014)... Valley, NY. (Apr. 23, 2014) People who have ... potential to restore neurological function. However, a study conducted ... issue of Cell Transplantation , but is currently ... http://www.ingentaconnect.com/content/cog/ct/pre-prints/content-ct1168Chen , has found that when one group ... cells (PBSCs) injected directly into the brain and a ...
(Date:4/23/2014)... transformed the energy landscape in the U.S., but ... among the energy industry, residents and agricultural interests ... that degraded water quality is a potential risk ... appears in the ACS journal Environmental Science ... colleagues point out that a major criticism of ...
(Date:4/23/2014)... term for novels and films which focus on the consequences ... how these fictions serve as a mental laboratory that allows ... imagine other living conditions. , "Global warming is much ... is also a cultural phenomenon in which meaning is being ... see. And there are so many of them now that ...
Breaking Biology News(10 mins):Autologous stem cell therapy improves motor function in chronic stroke victims 2How to avoid water wars between 'fracking' industry and residents 2Fiction prepares us for a world changed by global warming 2Fiction prepares us for a world changed by global warming 3
... may begin in the womb, researchers from Tel Aviv University ... twin can compromise the health of his twin sister before ... published in the journal Pediatrics, the researchers analyzed the incidence ... twins. When born premature, girls who share the womb with ...
... A recent University of Iowa study reveals a biological link ... women than men are diagnosed with chronic pain and fatigue ... mice, the researchers, led by Kathleen Sluka, Ph.D., professor in ... the UI Roy J. and Lucille A. Carver College of ...
... 2008 The Global Innovation Imperatives (Gii) project ... their first session at the American Chemical Societys ... a joint collaboration between the ACS Committee on ... seeks to combat worldwide health, environmental and societal ...
Cached Biology News:War between the sexes begins before twins' birth, TAU researchers say 2U. Iowa study finds biological link between pain and fatigue 2At ACS' national meeting, global initiative set to tackle water issues 2
(Date:1/15/2014)... 2014 AudioNotch is the internet's leading ... the treatment of tinnitus. Patients listen to sound therapy ... a period of weeks to months, their tinnitus volume decreases. ... forms: Notched Music and Notched White Noise. Now, AudioNotch is ...
(Date:1/14/2014)... (PRWEB) January 14, 2014 Date: Friday, April ... Location: Warrington Country Club, 1360 Almshouse Road, Warrington, Pa. ... nonprofit organization solely dedicated to finding a cure for hepatitis ... worldwide, will host its annual Crystal Ball on Friday, April ...
(Date:1/14/2014)... CA (PRWEB) January 14, 2014 Histogen, ... the products of cells grown under simulated embryonic conditions, ... license agreement with Suneva Medical, Inc. for physician-dispensed aesthetic ... , This agreement is an amendment to ...
(Date:1/14/2014)... 14, 2014 As pet owners drew up their lists of ... wrote: "Take better care of my furry companion." Nowadays there are ... top-brand carrying cases to take the little canine or feline darlings ... compelled to buy some pricey toys at the pet store. But ...
Breaking Biology Technology:Hepatitis B Foundation to Host Annual Crystal Ball Gala 2Histogen and Suneva Medical Expand License for Cell Conditioned Media-based Aesthetic Products Internationally 2Histogen and Suneva Medical Expand License for Cell Conditioned Media-based Aesthetic Products Internationally 3New Year's Resolution: Give Pets the Gift of Top-Notch Health Care 2
... - Two Milestones Reached in Zonisamide Patent Portfolio ... Therapeutics,Inc. (Nasdaq: OREX ), a biopharmaceutical company ... nervous system-related disorders, today,announced the initiation of its ... formulation of zonisamide plus olanzapine.,The Phase 2a clinical ...
... 2 Clarient, Inc.,(Nasdaq: CLRT ), a ... pathologists, oncologists and the pharmaceutical industry,today announced that ... an,exclusive interview on WallSt.net,s 3-Minute Press Show., ... company, and the,significance of the company,s latest press ...
... Zevalin only Radioimmunotherapy in U.S. to be Indicated ... for Use ... Inc. (CTI),(Nasdaq and MTA: CTIC) announced today that it has ... and Drug,Administration (FDA) for use of Zevalin(R) ([90Y]-ibritumomab tiuxetan) as,consolidation ...
Cached Biology Technology:Orexigen(R) Therapeutics Initiates First Clinical Trial of OREX-003 for the Mitigation of Antipsychotic-Associated Weight Gain 2Orexigen(R) Therapeutics Initiates First Clinical Trial of OREX-003 for the Mitigation of Antipsychotic-Associated Weight Gain 3Orexigen(R) Therapeutics Initiates First Clinical Trial of OREX-003 for the Mitigation of Antipsychotic-Associated Weight Gain 4[video] Ronald Andrews, CEO of Clarient, Inc. Discusses Agreement With University of Pennsylvania School of Medicine on WallSt.net's 3-Minute Press Show 2Cell Therapeutics Submits Supplemental Biologics License Application for Zevalin Use in First-Line Consolidation Therapy 2Cell Therapeutics Submits Supplemental Biologics License Application for Zevalin Use in First-Line Consolidation Therapy 3Cell Therapeutics Submits Supplemental Biologics License Application for Zevalin Use in First-Line Consolidation Therapy 4Cell Therapeutics Submits Supplemental Biologics License Application for Zevalin Use in First-Line Consolidation Therapy 5
Request Info...
... blotted protein on PVDF membrane or with ... N-terminal sequence of proteins (5-20 residues) can ... HPLC or mono-and bidimensional SDS-PAGE, followed by ... the well known EDMAN degradation method. Pre-treatment ...
Mycoplasma Removal Agent (MRA) has been developed for cell culture, to combat the widespread problems caused by contamination of cell cultures with mycoplasma....
... 5 ml Dynabeads® (4.5 ... BerEP4 against the human epithelial ... molecule). Also available in ... 10e7 MNC in 1 ml ...
Biology Products: