Corporate Banner
Satellite Banner
AgriGenomics
Scientific Community
 
Become a Member | Sign in
Home>News>This Article
  News
Return

High-Throughput Phenotyping to Detect Drought Tolerance QTL

Published: Saturday, May 17, 2014
Last Updated: Saturday, May 17, 2014
Bookmark and Share
The Plant Accelerator used to screen a set of 47 juvenile wild barley introgression lines.

Drought is one of the most severe stresses, endangering crop yields worldwide. In order to select drought tolerant genotypes, access to exotic germplasm and efficient phenotyping protocols are needed.

In this study the high-throughput phenotyping platform “The Plant Accelerator”, Adelaide, Australia, was used to screen a set of 47 juvenile (six week old) wild barley introgression lines (S42ILs) for drought stress responses.

The kinetics of growth development was evaluated under early drought stress and well watered treatments. High correlation (r = 0.98) between image based biomass estimates and actual biomass was demonstrated, and the suitability of the system to accurately and non-destructively estimate biomass was validated.

Subsequently, quantitative trait loci (QTL) were located, which contributed to the genetic control of growth under drought stress. In total, 44 QTL for eleven out of 14 investigated traits were mapped, which for example controlled growth rate and water use efficiency. The correspondence of those QTL with QTL previously identified in field trials is shown.

For instance, six out of eight QTL controlling plant height were also found in previous field and glasshouse studies with the same introgression lines. This indicates that phenotyping juvenile plants may assist in predicting adult plant performance.

In addition, favorable wild barley alleles for growth and biomass parameters were detected, for instance, a QTL that increased biomass by approximately 36%.

In particular, introgression line S42IL-121 revealed improved growth under drought stress compared to the control Scarlett. The introgression line showed a similar behavior in previous field experiments, indicating that S42IL-121 may be an attractive donor for breeding of drought tolerant barley cultivars.


Further Information

Join For Free

Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 3,900+ scientific posters on ePosters
  • More than 5,300+ scientific videos on LabTube
  • 35 community eNewsletters


Sign In



Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into TechnologyNetworks.com you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.

Related Content

Using Automated High-Throughput Phenotyping to Visualize and Quantify Drought Stress Influence
LemnaTec-Scanalyzer 3D system for analyzing large numbers of plants.
Saturday, May 17, 2014
DEPI and LemnaTec Commence Plant Phenomics Project
The plant phenomics facility project is a state-of-the-art high throughput plant phenotyping platform, at the DEPI Grains Innovation Park, Horsham, Victoria, Australia.
Monday, January 27, 2014
Scientific News
BGI Sequences Gingko Tree, Revealing Large, Highly Repetitive Genome
Researchers at BGI have sequenced the more than 10-gigabase ginkgo genome to find a high number of repetitive sequences as well as a number of gene clusters that appear to be involved in defense mechanisms.
Biologists Discover Origin of Stomata
Researchers discover genetic mechanism similar in flowering plants and mosses is a result of evolutionary conservation.
Engineering Bacteria to Aid Ethanol
Splicing in genes for ethanol production into bacteria in order to produce ethanol rather than not lactic acid.
Uncovering a World of Viruses
Study that shows human diseases like influenza are derived from those present in invertebrates.
Controlling Cell Division in Plants
Researchers succeeded in developing a new compound, a triarylmethane, that can rapidly inhibit cell division in plants.
Plant Aging Study Produces Insights into Crop Yields
New insights into the mechanism behind how plants age may help scientists better understand crop yields and nutrient allocation.
Protein-Folding Gene Helps Heal Wounds
Researchers identified a protein that dramatically accelerates wound healing in animal models.
USDA Uses Quorum Tech to Study Soft Bodied Organisms
Quorum Technologies report on US Department of Agriculture using their PP2000 Cryo-SEM preparation system to prepare soft bodied organisms for study.
Nitrogen Fixing Symbiosis Crucial for Microbiome Assembly
New findings from the study of legumes have identified an unknown role of nitrogen fixation symbiosis on plant root-associated microbiome.
Crop Yield Gets Boost with Modified Genes
Researchers increase plant proteins that result in more efficient use of sunlight.
SELECTBIO

SELECTBIO Market Reports
Go to LabTube
Go to eposters
 
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
3,900+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
5,300+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!