Navigation Links
Traces of early Native Americans -- in sunflower genes
Date:4/2/2010

BLOOMINGTON, Ind. -- New information about early Native Americans' horticultural practices comes not from hieroglyphs or other artifacts, but from a suite of four gene duplicates found in wild and domesticated sunflowers.

In an upcoming issue of Current Biology, Indiana University Bloomington biologists present the first concrete evidence for how gene duplications can lead to functional diversity in organisms. In this case, the scientists learned how duplications of a gene called FLOWERING LOCUS T, or FT, could have evolved and interacted to prolong a flower's time to grow. A longer flower growth period means a bigger sunflower -- presumably an attribute of great value to the plant's first breeders.

"Our paper shows how gene duplication creates potential for evolutionary innovation not just through creating new gene content but also through new interactions among duplicates," said Ben Blackman, the report's lead author.

Blackman conducted the research as an IU Bloomington Ph.D. student. He is now a postdoctoral fellow at Duke University.

Biologists have long thought the accidental duplication of genetic material provides important fodder for evolution. Less risky than modifying an existing, possibly important gene, duplicates offer an out -- one copy can continue its normal activities while the other copy acquires new functions. That's a hypothesis, anyway. The Current Biology paper suggests reality may be a little more complex.

FT genes play a role in sensitizing flowering plants to seasons, and their expression is usually triggered by changes in day length. Some flowering plants express FT genes early in the growing season as days get longer. Sunflower FT genes are expressed toward the end of the growing season when days are getting shorter. As far as biologists know, all flowering plants have at least one FT gene.

Blackman and his colleagues identified four FT genes in sunflower, Helian
'/>"/>

Contact: David Bricker
brickerd@indiana.edu
812-856-9035
Indiana University
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Computer program traces ancestry using anonymous DNA samples
2. Technique traces origins of disease genes in mixed human populations
3. UC biology prof traces his roots to the first Earth Day
4. Glowing films developed by UC San Diego chemists reveal traces of explosives
5. CSHL team traces extensive networks regulating alternative RNA splicing
6. Natural-born divers and the molecular traces of evolution
7. 60 second test could help early diagnosis of common brain diseases
8. Restless legs syndrome affects nearly 2 percent of US/UK children
9. Bleeding, not inflammation, is major cause of early lung infection death
10. Pig study sheds new light on the colonisation of Europe by early farmers
11. Color contrast is seen by the brain early doors
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Traces of early Native Americans -- in sunflower genes
(Date:7/29/2014)... sometimes need to get back to basics. UC ... study the impacts of the bumphead parrotfish ( ... two remote locations in the central Pacific Ocean. ... simulation, McCauley, an assistant professor in the Department ... colleagues sought to understand whether the world,s largest ...
(Date:7/29/2014)... effects of a stroke is an immensely complex ... well as effective therapy. Advancing such knowledge to ... primary focus of research by Sergei Adamovich, associate ... NJIT faculty more than a decade ago. It ... funding from sources such as the National Institutes ...
(Date:7/29/2014)... (UM SOD) and Medicine (UM SOM) jointly announced ... million grant award from the National Institute of ... Institutes of Health to study the causes, prevention ... which renews a previous $12 million five-year NIAID-funded ... research by studying chlamydial and gonorrheal diseases as ...
Breaking Biology News(10 mins):Underwater elephants 2Underwater elephants 3Continuing the quest for better stroke therapies 2Continuing the quest for better stroke therapies 3University of Maryland Schools of Dentistry and Medicine receive NIH grant 2University of Maryland Schools of Dentistry and Medicine receive NIH grant 3University of Maryland Schools of Dentistry and Medicine receive NIH grant 4
... islet cells from pigs may be used in clinical ... diabetes. This key finding was the discovery ... Institute for Immunology & Transplantation at the University of ... in the prestigious scientific journal Nature Medicine in March ...
... MICROSCOPY -- A chorus of signals . . . ... scanning probe microscopy, moves the field towards probing energy ... probe microscopes measure the cantilevers movements over the surface ... excitation excites and detects response over a continuous band ...
... of UPMC have identified a potential target for ... the most prevalent sexually transmitted bacterial infection in ... Darville, MD, chief of the Division of Pediatric ... of Chlamydia that, when investigated in an animal ...
Cached Biology News:Breakthrough research identifies how cells from pigs may cure diabetes 2Story tips from the US Department of Energy's Oak Ridge National Laboratory, September 2007 2Story tips from the US Department of Energy's Oak Ridge National Laboratory, September 2007 3Study by Pittsburgh researchers identifies possible vaccine target for chlamydia 2
(Date:7/29/2014)... July 29, 2014 According to ... Slide Imaging), Analytics (Image Analysis Software), Delivery Modes (Web ... Forecasts & Trends to 2018", published by MarketsandMarkets, analyzes ... geographies such as North America , ... , and the Rest of the World (RoW). ...
(Date:7/29/2014)... 2014 /PRNewswire-iReach/ -- Nanosyn, Inc. announced today a ... to provide access to Nanosyn,s microfluidics screening and ... for novel small molecule therapeutics. ... work with FORMA Therapeutics to explore key pathways ... FORMA Therapeutics, decision to work with us is ...
(Date:7/29/2014)... Colo. , July 29, 2014  Cannabis ... in cannabis formulation-based drug development and related consulting, ... Times for taking a strong position in opposition ... Sunday, July 27, 2014 publication.  The New York ... and articles this week exploring the issue called ...
(Date:7/29/2014)... Denver, CO (PRWEB) July 29, 2014 ... and soiled linen collection and transport solutions for hospitals, ... Society for Healthcare Engineering (ASHE) Annual Conference & Technical ... TransVac will present its technology for making hospitals cleaner, ... operational costs over the hospital’s life cycle. Staff ...
Breaking Biology Technology:Digital Pathology Market worth $437 Million by 2018 2Digital Pathology Market worth $437 Million by 2018 3Nanosyn Announces Expanded Partnership With FORMA Therapeutics 2Cannabis Science, Inc. (CBIS) Applauds New York Times Editorial Board Stance on 'Repealing Prohibition, Again'; NYT Editorial Is Bell Weather of Change 2Cannabis Science, Inc. (CBIS) Applauds New York Times Editorial Board Stance on 'Repealing Prohibition, Again'; NYT Editorial Is Bell Weather of Change 3TransVac Presents Cost Saving Technology at ASHE Conference for Keeping Hospitals Cleaner 2
... LOUIS, Jan. 24 The National Academy of,Sciences ... Fraley, Ph.D.,chief technology officer and executive vice president ... the Industrial Application of Science. This,prize is awarded ... importance and with significant, beneficial applications in,industry -- ...
... Bard, professor of chemistry and biochemistry at The University ... Prize in Chemistry jointly with Professor William Moerner of ... of education, Professor Yuli Tamir, was given to the ... of science, single-molecule spectroscopy and imaging. , The $100,000 ...
... million grows 32% year-over-year, - Operating income increases 47.7%, diluted ... - Backlog increases 41% to a record of ... - Net quarterly book-to-burn ratio equates to 1.9, BOSTON, ... its financial results for the,second quarter ended December 31, 2007., ...
Cached Biology Technology:National Academy of Sciences Recognizes Monsanto's Chief Technology Officer for Development of Agricultural Biotechnology 2PAREXEL Reports Second Quarter Fiscal Year 2008 Financial Results 2PAREXEL Reports Second Quarter Fiscal Year 2008 Financial Results 3PAREXEL Reports Second Quarter Fiscal Year 2008 Financial Results 4PAREXEL Reports Second Quarter Fiscal Year 2008 Financial Results 5PAREXEL Reports Second Quarter Fiscal Year 2008 Financial Results 6PAREXEL Reports Second Quarter Fiscal Year 2008 Financial Results 7PAREXEL Reports Second Quarter Fiscal Year 2008 Financial Results 8PAREXEL Reports Second Quarter Fiscal Year 2008 Financial Results 9PAREXEL Reports Second Quarter Fiscal Year 2008 Financial Results 10
Anti-Kusabira Orange Monoclonal Antibody Description: 100 g Research Focus: tag Storage: -20C Shipping Temperature: 4C...
Anti-Kusabira Orange Monoclonal Antibody Description: 100 g Research Focus: tag Storage: -20C Shipping Temperature: 4C...
Rabbit anti-NFkB p105/p50 (Ser337) Class: Antibody Product Group: Signalling molecules and phospho-specific Antibody...
Anti-Kusabira Orange Monoclonal Antibody Description: 100 g Research Focus: tag Storage: -20C Shipping Temperature: 4C...
Biology Products: