Navigation Links
Genomewide mapping reveals developmental and environmental impacts
Date:8/16/2011

Complex traits that help plants adapt to environmental challenges are likely influenced by variations in thousands of genes that are affected by both the plant's growth and the external environment, reports a team of researchers at the University of California, Davis.

The findings were revealed by a genomewide association mapping of the defense metabolism in Arabidopsis thaliana, a common research plant. The researchers, led by UC Davis plant scientist Daniel Kliebenstein, report the study results today, Aug. 16, in the online journal PLoS Genetics.

In the study, Kliebenstein and colleagues measured glucosinolates (GSL), a key class of compounds that the plant produces to protect against insect attacks and disease-causing organisms. The researchers measured the compound in two developmental stages at two days and 35 days after germination. They also sampled plant tissues that were either treated or not treated with silver nitrate, mimicking environmental damage caused by a pest.

"We showed that both external and internal environments altered the identified genes so significantly that using plant tissues from different developmental stages, or that were treated with the silver nitrate, led to the identification of very different gene sets for particular traits," Kliebenstein said.

The group noted that the developmental stage of the plant had three times as much influence as the environment on the genes they identified.

Because the genomewide association mapping identified so many different genes as potentially responsible for traits associated with GSL metabolism, the researchers developed a new process for winnowing candidate genes. The process analyzes overlapping datasets of genomic information to filter out true-positive gene identifications.

Genomewide association mapping involves rapidly scanning markers across entire genomes to find genetic variations associated with a particular trait, condition or disease. The approach has been used to study complex human diseases such as asthma and diabetes.

The researchers hope that the new two-pronged approach to genomewide association can be applied to any plant and animal species.


'/>"/>

Contact: Patricia Bailey
pjbailey@ucdavis.edu
530-752-9843
University of California - Davis
Source:Eurekalert

Related biology news :

1. Chemical equator discovery will aid pollution mapping
2. Mapping a clan of mobile selfish genes
3. New rainforest mapping technology gets huge support
4. Studies offer guide as protein interaction mapping comes of age
5. Neural mapping paints a haphazard picture of odor receptors
6. Plant gene mapping may lead to better biofuel production
7. A Canada-wide technology platform for mapping the human interactome
8. Scientists take early steps toward mapping epigenetic variability
9. First phase of pan-tropical forest mapping debuting at COP15
10. AgriLife scientists do groundwork for genetic mapping of algae biofuel species
11. Genome mapping technique speeds process of finding specific genes
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/28/2016)... Synaptics (NASDAQ: SYNA ), a leading developer of human interface ... 31, 2015. --> --> ... percent compared to the comparable quarter last year to $470.5 million. ... million, or $0.93 per diluted share. --> ... of fiscal 2016 grew 9 percent over the prior year period ...
(Date:1/25/2016)... BELL, Pa. , Jan. 25, 2016   Unisys Corporation ... recognition system at John F. Kennedy (JFK) International Airport, ... Border Protection (CBP) identify imposters attempting to enter ... do not belong to them. pilot testing of ... out initially at three terminals at JFK during January 2016. ...
(Date:1/22/2016)... January 22, 2016 ... addition of the  "Global Behavioral Biometric ... --> http://www.researchandmarkets.com/research/4lmf2s/global_behavioral ) has ... Behavioral Biometric Market 2016-2020"  report to ... and Markets ( http://www.researchandmarkets.com/research/4lmf2s/global_behavioral ) has announced ...
Breaking Biology News(10 mins):
(Date:2/11/2016)... 11, 2016   BioInformant announces the February ... Research Products, Opportunities, Tools, and Technologies – Market Size, ... The first and ... cell industry, BioInformant has more than a decade of ... market, by stem cell type. This powerful 175 page ...
(Date:2/11/2016)... ... February 11, 2016 , ... Global ... treatment clinic in Quito, Ecuador. The new facility will provide advanced protocols and ... from around the world. , The new GSCG clinic is headed by ...
(Date:2/10/2016)... -- The Maryland House of Delegates and House Speaker ... Maryland School of Medicine Dean E. Albert Reece ... System President and CEO Robert Chrencik , MBA, ... given to the public by the leader of the ... and Mr. Chrencik for their contributions to our statewide ...
(Date:2/10/2016)... New York (PRWEB) , ... ... ... Inc. (NASDAQ: REGN) today announced that it has joined the Human Vaccines ... immunotherapies for infectious diseases and cancer. , The Human Vaccines Project ...
Breaking Biology Technology: