Featured Research

from universities, journals, and other organizations

Genomewide mapping reveals developmental and environmental impacts

Date:
August 22, 2011
Source:
University of California - Davis
Summary:
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, report researchers.

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.

Related Articles


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 on 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.

In addition to Kliebenstein, the UC Davis research team included Eva Chan, a former UC Davis postdoctoral fellow now working at Monsanto Company in Woodland, Calif.; plant science graduate student Jason Corwin; and plant science postdoctoral fellow Bindu Joseph.

The study was funded by the National Science Foundation.


Story Source:

The above story is based on materials provided by University of California - Davis. Note: Materials may be edited for content and length.


Cite This Page:

University of California - Davis. "Genomewide mapping reveals developmental and environmental impacts." ScienceDaily. ScienceDaily, 22 August 2011. <www.sciencedaily.com/releases/2011/08/110816152241.htm>.
University of California - Davis. (2011, August 22). Genomewide mapping reveals developmental and environmental impacts. ScienceDaily. Retrieved October 24, 2014 from www.sciencedaily.com/releases/2011/08/110816152241.htm
University of California - Davis. "Genomewide mapping reveals developmental and environmental impacts." ScienceDaily. www.sciencedaily.com/releases/2011/08/110816152241.htm (accessed October 24, 2014).

Share This



More Plants & Animals News

Friday, October 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Deep Sea 'mushroom' Could Be Early Branch on Tree of Life

Deep Sea 'mushroom' Could Be Early Branch on Tree of Life

Reuters - Innovations Video Online (Oct. 24, 2014) Miniature deep sea animals discovered off the Australian coast almost three decades ago are puzzling scientists, who say the organisms have proved impossible to categorise. Academics at the Natural History of Denmark have appealed to the world scientific community for help, saying that further information on Dendrogramma enigmatica and Dendrogramma discoides could answer key evolutionary questions. Jim Drury has more. Video provided by Reuters
Powered by NewsLook.com
Black Bear Cub Goes Sunday Shopping

Black Bear Cub Goes Sunday Shopping

Reuters - Light News Video Online (Oct. 23, 2014) Price check on honey? Bear cub startles Oregon drugstore shoppers. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Dances With Wolves in China's Wild West

Dances With Wolves in China's Wild West

AFP (Oct. 23, 2014) One man is on a mission to boost the population of wolves in China's violence-wracked far west. The animal - symbol of the Uighur minority there - is under threat with a massive human resettlement program in the region. Duration: 00:41 Video provided by AFP
Powered by NewsLook.com
Breakfast Debate: To Eat Or Not To Eat?

Breakfast Debate: To Eat Or Not To Eat?

Newsy (Oct. 23, 2014) Conflicting studies published in the same week re-ignited the debate over whether we should be eating breakfast. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins