Satellite Banner
Technology
Networks
Scientific Communities
 
Become a Member | Sign in
Home>News>This Article
  News
Return

Can genomics boost productivity of orphan crops?

Published: Friday, December 07, 2012
Last Updated: Friday, December 07, 2012
Bookmark and Share
Rajeev K Varshney and colleagues published a letter in the recent issue of Nature Biotechnology aruging that genomics can be effective in enhancing the yield of tropical food crops

 Nature Biotechnology 30, 1172–1176 (2012) doi:10.1038/nbt.2440 ; 07 December 2012

Advances in genomics over the past 20 years have enhanced the precision and efficiency of breeding programs1 in many temperate cereal crops2, 3. One of the first applications of genomics-assisted breeding has been the introgression of loci for resistance to biotic stresses or major quantitative trait loci (QTLs) for tolerance to abiotic stresses into elite genotypes through marker-assisted backcrossing (MABC)4. For instance, introgression of a major QTL for submergence tolerance (Sub1) into widely grown rice varieties has substantially improved yield in >15 million hectares of rain-fed low-land rice in South and Southeast Asia5. Despite this success story, the overall adoption of genomics-assisted breeding in developing countries is still limited especially for complex traits like yield under environmental stress in several other crops6, 7.

Although maize, rice and wheat dominate global food production, several other crops are of great importance for some communities in developing countries (Supplementary Table 1). This group includes sorghum and millets, groundnut, cowpea, common bean, chickpea, pigeonpea, cassava, yam and sweet potato (Table 1). As they are not extensively traded and receive little attention from researchers compared to the main crops, these important crops for marginal environments of Africa, Asia and South America are often referred to as 'orphan crops'. Breeding for orphan crops is lagging behind major crops although they are key staple crops in many low-income countries where small-holder farmers cannot afford to buy improved seed. The magnitude of the breeding effort for those orphan crops and the capacity of adopting modern technologies is extremely variable across developing countries and generally directly related to the health of the national economy.

(read on.... http://www.nature.com/nbt/journal/v30/n12/full/nbt.2440.html?WT.ec_id=NBT-201212)


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 3,500+ scientific posters on ePosters
  • More Than 5,000+ 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.


Scientific News
Point of Care Diagnostics - A Cautious Revolution
Advances in molecular biology, coupled with the miniaturization and improved sensitivity of assays and devices in general, have enabled a new wave of point-of-care (POC) or “bedside” diagnostics.
Mass Spec Technology Drives Innovation Across the Biopharma Workflow
With greater resolving power, analytical speed, and accuracy, new mass spectrometry technology and techniques are infiltrating the biopharmaceuticals workflow.
One Step Closer to Precision Medicine for Chronic Lung Disease Sufferers
A study led by University of North Carolina at Chapel Hill, and National Jewish Health, has provided evidence of links between SNPs and known COPD blood protein biomarkers.
Modified Yeast Shows Plant Response to Key Hormone
Researchers have developed a toolkit based on modified yeast to determine plant responses to auxin.
Adipose Tissue Secretes Factors That Activate Metabolism
Study finds brown adipose tissue secretes signalling factors that activates metabolism of fat and carbohydrates.
Antibiotic Resistant Bacteria In America's Water System
Antibiotic resistant bacteria live inside drinking water distribution systems blamed for rising healthcare costs.
ReadCoor Launched to Commercialize 3D Sequencing Tech
ReadCoor will leverage the Wyss Institute’s method for simultaneously sequencing and mapping RNAs within cells and tissues to advance development of diagnostics.
Ancient Eggshell Protein Breaks Through DNA Time Barrier
Fossil proteins from a 3.8million year-old eggshell have been identifed, suggests proteins could give insight into evolutionary tree.
Monkeys Protected by Zika DNA Vaccine
Experimental Zika virus DNA vaccines successfully protected monkeys against Zika infection.
Nanosensors Could Determine Tumours’ Ability to Remodel Tissue
Researchers design nanosensors that can profile tumours, focusing on protease levels.
Scroll Up
Scroll Down
Skyscraper Banner

Skyscraper Banner
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
3,500+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
5,000+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!