Featured Research

from universities, journals, and other organizations

Novel gene for salt tolerance found in wild soybean

Date:
July 11, 2014
Source:
BGI Shenzhen
Summary:
A gene of wild soybean linked to salt tolerance has been discovered by researchers, with implication for improving this important crop to grow in saline soil. This study provides an effective strategy to unveil novel genomic information for crop improvement.

A team of researchers from The Chinese University of Hong Kong, BGI and other institutes have identified a gene of wild soybean linked to salt tolerance, with implication for improving this important crop to grow in saline soil. This study published online in Nature Communications provides an effective strategy to unveil novel genomic information for crop improvement.

Soybean is an important crop for the world. Due to domestication and human selection, cultivated soybeans have less genetic diversities than their wild counterparts. Among the lost genes, some may play important roles for the adaptation to different environments. In this study, scientists used wild soybean as a resource for investigating the valuable genes that adapt to certain environmental conditions.

They sequenced and assembled a draft genome of wild soybean W05, and developed a recombinant inbred population for genotyping-by-sequencing and phenotypic analyses to identify multiple QTLs relevant to traits of interest in agriculture. Using the de novo sequencing data from this work and their previous germplasm re-sequencing data, the team discovered a novel ion transporter gene, GmCHX1, and suggested it maybe related with salt tolerance.

During the following rapid gain-of-function tests, the gene GmCHX1 was conferred its function on salt tolerance, and suggested GmCHX1 acted probably through lowering the Na+/K+ ratio. The authors assumed that the elimination of GmCHX1 in salt-sensitive germplasms may be an example of negative selection against a stress tolerance gene in unstressed environments. The expression of stress tolerance genes may be an energy burden on the plant if the functions of these genes are not required.

Through this study, researchers developed an efficient strategy using the combination of whole-genome de novo sequencing, high-density-marker QTL mapping by re-sequencing, and functional analyses, which could greatly enhance the efficiency of uncovering QTLs and genes for beneficial traits in crop breeding.


Story Source:

The above story is based on materials provided by BGI Shenzhen. Note: Materials may be edited for content and length.


Journal Reference:

  1. Xinpeng Qi, Man-Wah Li, Min Xie, Xin Liu, Meng Ni, Guihua Shao, Chi Song, Aldrin Kay-Yuen Yim, Ye Tao, Fuk-Ling Wong, Sachiko Isobe, Chi-Fai Wong, Kwong-Sen Wong, Chunyan Xu, Chunqing Li, Ying Wang, Rui Guan, Fengming Sun, Guangyi Fan, Zhixia Xiao, Feng Zhou, Tsui-Hung Phang, Xuan Liu, Suk-Wah Tong, Ting-Fung Chan, Siu-Ming Yiu, Satoshi Tabata, Jian Wang, Xun Xu, Hon-Ming Lam. Identification of a novel salt tolerance gene in wild soybean by whole-genome sequencing. Nature Communications, 2014; 5 DOI: 10.1038/ncomms5340

Cite This Page:

BGI Shenzhen. "Novel gene for salt tolerance found in wild soybean." ScienceDaily. ScienceDaily, 11 July 2014. <www.sciencedaily.com/releases/2014/07/140711101349.htm>.
BGI Shenzhen. (2014, July 11). Novel gene for salt tolerance found in wild soybean. ScienceDaily. Retrieved September 30, 2014 from www.sciencedaily.com/releases/2014/07/140711101349.htm
BGI Shenzhen. "Novel gene for salt tolerance found in wild soybean." ScienceDaily. www.sciencedaily.com/releases/2014/07/140711101349.htm (accessed September 30, 2014).

Share This



More Plants & Animals News

Tuesday, September 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

California University Designs Sustainable Winery

California University Designs Sustainable Winery

Reuters - US Online Video (Sep. 27, 2014) Amid California's worst drought in decades, scientists at UC Davis design a sustainable winery that includes a water recycling system. Vanessa Johnston reports. Video provided by Reuters
Powered by NewsLook.com
Argentina Worries Over Decline of Soybean Prices

Argentina Worries Over Decline of Soybean Prices

AFP (Sep. 27, 2014) The drop in price of soy on the international market is a cause for concern in Argentina, as soybean exports are a major source of income for Latin America's third largest economy. Duration: 01:10 Video provided by AFP
Powered by NewsLook.com
Mama Bear, Cubs Hang out in California Backyard

Mama Bear, Cubs Hang out in California Backyard

Reuters - US Online Video (Sep. 27, 2014) A mama bear and her two cubs climb trees, wrestle and take naps in the backyard of a Monrovia, California home. Vanessa Johnston reports. Video provided by Reuters
Powered by NewsLook.com
'Crazy' Climate Forces Colombian Farmers to Adapt

'Crazy' Climate Forces Colombian Farmers to Adapt

AFP (Sep. 26, 2014) Once upon a time, farming was a blissfully low-tech business on Colombia's northern plains. Duration: 02:05 Video provided by AFP
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