Hyderabad, India and Shenzhen, China, 06 November 2011 – Once referred to as an "orphan crop" mainly grown by poor farmers, pigeonpea is now set to join the world's league of major food crops with the completion of its genome sequence.
The completed genome sequence of pigeonpea is featured as an advance online publication on 06 November 2011 on the website of the journal Nature Biotechnology, the first ranked journal in the area of biotechnology. The paper provides an overview of the structure and function of the genes that define the pigeonpea plant. It also reveals clues on how the genomic sequence can be useful to crop improvement for sustainable food production particularly in the marginal environments of Asia and sub-Saharan Africa.
Years of genome analysis by a global research partnership led by the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) based in Hyderabad, India have resulted in the identification of 48,680 pigeonpea genes. A couple of hundreds of these genes were found unique to the crop in terms of drought tolerance, an important trait that can be transferred to other similar crops like soybean, cowpea or common bean that belong to the same family.
In the fight against poverty and hunger amid the threat of climate change, highly nutritious, drought-tolerant crops are the best bets for smallholder farmers in marginal environments to survive and improve their livelihoods.
Pigeonpea, grown on about 5 million hectares in Asia, sub-Saharan Africa and South-Central America, is a very important food legume for millions of the poor in the semi-arid regions of the world. Known as the "poor people's meat" because of its high protein content, it provides a well-balanced diet when accompanied with cereals.
"The mapping of the pigeonpea genome is a breakthrough that could not have come at a better time. Now that the world is faced with hunger and famine particularly in the Horn of Africa brought about by the worst drought of the decades, science-based, sustainable agricultural development solutions are vital in extricating vulnerable dryland communities out of poverty and hunger for good," says ICRISAT Director General William D. Dar.
"Modern crop improvement technologies for smallholder farmer crops such as pigeonpea will be crucial to speed up the development of improved varieties that can provide high yields and improved livelihoods, and at the same time meet the challenges of marginal environments and the threat of climate change and scarce natural resources," adds Dar.
Rajeev Varshney, the lead scientist and coordinator for the pigeonpea genome sequencing project explains how this breakthrough will unlock pigeonpea's potential.
"Having the pigeonpea genome sequence as a reference will significantly speed up and reduce the cost of screening the 'good genes' within the stored pigeonpea seed collections in genebanks like that of ICRISAT. This also means dramatically reducing the cost of developing new improved varieties for farmers," says Varshney.
"At the moment, in general, it can take 6-10 years to breed a new variety. With the use of this genome sequence data, in the future, we could be breeding a new variety in just about 3 years." he adds.
"The pigeonpea collaboration with ICRISAT is a milestone in the partnership between India and China, showcasing the excellent working dynamics and understanding among Indian and Chinese genomics scientists. I hope more partnerships like this will be established in the future, and I believe this will surely bring a significant difference to the whole world," says Professor Huanming Yang, Chairman of BGI-Shenzhen, the world's largest genomics institute and a key partner of this project.
India is home as well as the largest producer of pigeonpea, but crop productivity in the country as well as in sub-Saharan Africa is only less than 1 ton per hectare. An improved understanding of the pigeonpea genome will have a major impact on improved crop productivity, tackling pests and disease constraints in production, and improved resistance to harsh environments and the future variable climate.
Pigeonpea is the first "orphan crop", the first "non-industrial crop" and the second food legume (after soybean) with a completed genome sequence.
It is also the first time that a Consultative Group on International Agricultural Research (CGIAR) supported Center like ICRISAT or any institute located in India has led the genome sequencing of a food crop.
The sequencing was accomplished by a global research partnership, the International Initiative for Pigeonpea Genomics (IIPG), led by ICRISAT with partners such as BGI – Shenzhen (China), US research laboratories like University of Georgia, University of California-Davis, Cold Spring Harbor Laboratory, and National Centre for Genome Resources, and support from the CGIAR Generation Challenge Programme based in Mexico.
For more information, please visit our website: www.icrisat.org or contact email@example.com
One step closer to reality
20.04.2018 | Max-Planck-Institut für Entwicklungsbiologie
The dark side of cichlid fish: from cannibal to caregiver
20.04.2018 | Veterinärmedizinische Universität Wien
University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.
Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.
Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.
Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...
Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.
The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...
Stable joint cartilage can be produced from adult stem cells originating from bone marrow. This is made possible by inducing specific molecular processes occurring during embryonic cartilage formation, as researchers from the University and University Hospital of Basel report in the scientific journal PNAS.
Certain mesenchymal stem/stromal cells from the bone marrow of adults are considered extremely promising for skeletal tissue regeneration. These adult stem...
In the fight against cancer, scientists are developing new drugs to hit tumor cells at so far unused weak points. Such a “sore spot” is the protein complex...
13.04.2018 | Event News
12.04.2018 | Event News
09.04.2018 | Event News
20.04.2018 | Physics and Astronomy
20.04.2018 | Interdisciplinary Research
20.04.2018 | Physics and Astronomy