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:4/17/2017)... , April 17, 2017 NXT-ID, Inc. ... company, announces the filing of its 2016 Annual Report on Form ... Exchange Commission. ... Form 10-K is available in the Investor Relations section of the ... on the SEC,s website at http://www.sec.gov . 2016 ...
(Date:4/11/2017)... Research and Markets has announced the addition of the ... ... to grow at a CAGR of 30.37% during the period 2017-2021. ... been prepared based on an in-depth market analysis with inputs from ... prospects over the coming years. The report also includes a discussion ...
(Date:4/5/2017)... , April 5, 2017  The Allen Institute ... Allen Cell Explorer: a one-of-a-kind portal and dynamic digital ... 3D imaging data, the first application of deep learning ... human stem cell lines and a growing suite of ... platform for these and future publicly available resources created ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... ... October 11, 2017 , ... Singh Biotechnology today announced ... to SBT-100, its novel anti-STAT3 (Signal Transducer and Activator of Transcription 3) B ... to cross the cell membrane and bind intracellular STAT3 and inhibit its function. ...
(Date:10/10/2017)... International research firm Parks Associates announced today that ... TMA 2017 Annual Meeting , October 11 in Scottsdale, ... security market and how smart safety and security products impact the competitive ... Parks Associates: Smart Home Devices: Main ... "The residential security market has experienced continued ...
(Date:10/9/2017)... ... October 09, 2017 , ... The award-winning American Farmer television series will feature ... Farmer airs Tuesdays at 8:30aET on RFD-TV. , With global population estimates nearing ... how to continue to feed a growing nation. At the same time, many of ...
(Date:10/7/2017)... ... October 06, 2017 , ... ... Hi-C-based genomic technologies, launched its ProxiMeta™ Hi-C metagenome deconvolution product, featuring the ... and accompanying cloud-based bioinformatics software to perform Hi-C metagenome deconvolution using their ...
Breaking Biology Technology: