Corporate Banner
Satellite Banner
AgriGenomics
Scientific Community
 
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 3,300+ scientific posters on ePosters
  • More than 4,900+ 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
JPK NanoWizard® Applied to a Wide Range of Research
The NanoWizard® AFM from JPK is applied for interdisciplinary research at the University of South Australia for applications including smart wound healing and how plants can protect themselves from toxins.
Protein Boosts Rice Yield by 54%
Over-expression of a natural protein in rice plants led to a 54% increase in crop yield and 40% increase in nitrogen-use efficiency.
Soil Nitrogen Age Important for Precision Agriculture
Calculating the age of nitrogen in corn and soybean fields could lead to improved fertilizer application techniques.
Genome of 6000-Year-Old Barley Sequenced
Researchers have successfully sequenced the genome of Chalcolithic barley grains for the first time.
Flowers Arrange Themselves for Bees
Study suggests plants can maximise their chances of reproduction by taking advantage of how insects move when they gather nectar.
Improving Wheat Crops in the Field
Agrii, RAGT and the University of Nottingham are developing better disease management and yield production in wheat crops using ASD FieldSpec Handheld 2 portable spectroradiometers.
Unravelling the Roots of Insect’s Waterproof Coating
Researchers have identified the genes that control cuticular lipid production in Drosophila, by performing an RNAi screen and using Direct Analysis in Real Time and GC-MS.
Structural link to Brain Cell Death in Alzheimer's
Study reveals multiple new leads for pursuing potential Alzheimer's treatments
Disentangling the Plant Microbiome
Study says breeding plants, to feed a growing global population, with more beneficial bacteria is far from simple.
Cellular Origin of Skin Cancer Identified
Scientists have identified ‘cell of origin’ in the most common form of skin cancer, and followed the process that leads to tumour growth.
Skyscraper Banner

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
3,300+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
4,900+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!