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:11/5/2014)... diversity in their ability to identify scents and odors. ... their perceptual evaluation of odors, with women outperforming men ... Sex differences in olfactory detection may play a role ... one,s perception of smell, which is naturally linked to ... been suggested to be cognitive or emotional, rather than ...
(Date:11/4/2014)... of death at the right time might actually help ... that could help in understanding animal populations, pest control ... paper in the journal Trends in Ecology and ... conclude that the kind of positive population effect an ... mortality, depends on the size and developmental stage of ...
(Date:11/4/2014)... 4, 2014) — Think about the way our bodies ... neighboring cells know that they are supposed to become ... these tissues find the correct place and alignment? Researchers ... crucial questions. , In a new study, UM researchers ... with their surrounding neighbors, at the head-trunk region. Their ...
Breaking Biology News(10 mins):The female nose always knows: Do women have more olfactory neurons? 2When less is more: Death in moderation boosts population density in nature 2The inside story: How the brain and skull stay together 2
... Embargoed by the journal Nature Structural and Molecular ... Scientists from The Scripps Research Institute have shed new ... off in response to a cell,s energy needs. ... of the journal Nature Structural and Molecular Biology shows ...
... of approximately one hundred billion nerve cells. Each of these ... brain,s development in order to form a fully functional organism. ... grow and which cells to contact? Scientists of the Max ... growing nerve cells realise when they,ve reached their target area ...
... RIVERSIDE, Calif. A team of scientists at the University ... project that, if successful, will provide valuable genetic resources capable ... world. The three-year project, funded by a $1 million ... this month. Led by Susan R. Wessler , ...
Cached Biology News:Scripps Research study sheds light on RNA 'on/off switches' 2Scripps Research study sheds light on RNA 'on/off switches' 3Scripps Research study sheds light on RNA 'on/off switches' 4Partnership of genes affects the brain's development 2UCR scientists to explore new genetic tools in mosquito research: Transposable elements 2UCR scientists to explore new genetic tools in mosquito research: Transposable elements 3UCR scientists to explore new genetic tools in mosquito research: Transposable elements 4
(Date:11/26/2014)... November 26, 2014 PMG Research, Inc. ... PMG Research is a network of sites that provide clinical ... over 2 million patient lives through its partnerships with large ... of 11 hub site locations in the Southeastern United States ... term of the board will be held by: ...
(Date:11/26/2014)... 2014 Silicon Valley Electronic Data Capture ... RPM Alliance , provider of clinical research and data ... latest addition to its CRO Partnership Program, Clinovo expands ... to India. , “We have found Clinovo’s ClinCapture ... EDC platform which is both user friendly and easy ...
(Date:11/26/2014)... Global biostimulants market is expected to reach ... CAGR of 12.5%. In order to cater to ... ecological impacts, farmers are looking to adopt natural ... more effectively & efficiently. Biostimulants are consequently seen ... on investments. , Leading companies in the biostimulants ...
(Date:11/26/2014)... 2014 CURE™ magazine will ... December 5, 2014, in San Francisco prior to the ... event will honor clinicians, caregivers, and advocates who have ... (MPNs). , Special guest speaker Charles Esten, from ... journey at the reception. Over a decade ago, ...
Breaking Biology Technology:PMG Research Names Medical Advisory Board 2PMG Research Names Medical Advisory Board 3RPM Alliance Joins Clinovo’s CRO Partnership Program, Further Strengthening Its Presence in Southern California and India 22019 Biostimulants Market to Grow at a CAGR of 12.5% Says a New Research Report Available at RnRMarketResearch.com 22019 Biostimulants Market to Grow at a CAGR of 12.5% Says a New Research Report Available at RnRMarketResearch.com 32019 Biostimulants Market to Grow at a CAGR of 12.5% Says a New Research Report Available at RnRMarketResearch.com 4CURE Magazine and Incyte to Honor MPN Heroes 2CURE Magazine and Incyte to Honor MPN Heroes 3CURE Magazine and Incyte to Honor MPN Heroes 4
... instrumentation to academic, biotech and pharmaceutical research laboratories, today announced ... local community and the environment. , ... ... Scientific, the premier provider of laboratory supplies and ...
... have discovered that freshwater algae can form stable groupings ... together only by the fluid flows they create. ... Physical Review Letters . , , The researchers studied ... cells arranged on the surface of a spherical matrix ...
... a spell on local middle and high school students, ... that will harness the magical draw of the Harry ... classrooms. , Funded by a nearly $3 million grant ... and NanoSciences initiative will pair teachers from the Houston, ...
Cached Biology Technology:E&K Scientific Announces New Accuflow Product Line 2E&K Scientific Announces New Accuflow Product Line 3Scientists discover 'dancing' algae 2UH initiative will use 'Harry Potter' to conjure love for science in Houston-area schools 2UH initiative will use 'Harry Potter' to conjure love for science in Houston-area schools 3
... Immunogen: synthetic peptide corresponding to the third ... dopamine receptor, conjugated to KLH. The immunizing ... and mouse gene. Physical form: Solution ... 0.01% sodium azide. Titertest method: IHC ...
... PCR Workstation brings together UV irradiation ... dual-attack environment against PCR contamination! Quickly ... Maintain a clean environment with antimicrobial ... and reagents within minutes with built-in 30-minute ...
... Recombinant Enterokinase (rEK) is a highly ... bovine enterokinase, a serine protease which recognizes ... enzyme (AspAspAspAspLys?) and has similar enzymatic activity ... coli and purified to yield the highest ...
... benefits of a Hybridizer and UV Crosslinker (254nm ... , This unique, new design for ... at one location , Hybridizer and Crosslinker ... other , The Crosslinker is also available ...
Biology Products: