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:12/20/2016)... -- The rising popularity of mobility services such ... significant interest in keyless access systems. Following the ... (BLE), biometrics and near-field communication (NFC) are poised ... technologies in the automotive industry. This evolution from ... opens the market to specialist companies such as ...
(Date:12/16/2016)... Dec. 16, 2016   IdentyTechSolutions America LLC ... products and solutions and a cutting-edge manufacturer of ... it is offering seamless, integrated solutions that comprise ... products. The solutions provide IdentyTech,s customers with combined ... facilities from crime and theft. "We ...
(Date:12/15/2016)... VANCOUVER, Canada and BADEN-BADEN, Germany ... Solutions, a leading global financial services provider, today announced an ... in passive behavioural biometrics, to join forces. The partnership will ... fraud mitigation strategies in compliance with local data protection regulation. ... In ...
Breaking Biology News(10 mins):
(Date:1/12/2017)... ... 12, 2017 , ... MEXICO’S FIRST SPINAL ... announces the successful outcome of the first lumbar fusion procedure in Mexico ... Inc.) has partnered with Mexico-based medical product company BioMedical Technologies to bring ...
(Date:1/12/2017)... , January 12, 2017 The ... world,s biggest facility for producing mycorrhizae. The Centre for ... tapping potential of mycorrhizae and developed a technology that ... ... The TERI facility has a ...
(Date:1/11/2017)... ... January 11, 2017 , ... Phase 1 clinical ... promise of the investigational anti-cancer agent tucatinib (formerly ONT-380) against HER2+ breast cancer. ... Twenty-seven percent of these heavily pretreated patients saw clinical benefit from the drug, ...
(Date:1/11/2017)... ... January 11, 2017 , ... With sepsis ... systems more than $23.7 billion, healthcare systems are looking to provide better ... most common sepsis-causing pathogens are bacteria and the yeast pathogen Candida, which can ...
Breaking Biology Technology: