HOME >> BIOLOGY >> NEWS
Climate change threatens wild relatives of key crops

ROME, ITALY (22 May 2007) -- Wild relatives of plants such as the potato and the peanut are at risk of extinction, threatening a valuable source of genes that are necessary to boost the ability of cultivated crops to resist pests and tolerate drought, according to a new study released today by scientists of the Consultative Group on International Agricultural Research (CGIAR). The culprit is climate change, the researchers said.

According to the study, in the next 50 years as many as 61 percent of the 51 wild peanut species analyzed and 12 percent of the 108 wild potato species analyzed could become extinct as the result of climate change. Most of those that remained would be confined to much smaller areas, further eroding their capacity to survive. The study also examined wild relatives of cowpea, a nutritious legume farmed widely in Africa. It found that only two of 48 species might disappear. However, the authors predict that most wild cowpeas will decline in numbers because climatic changes will push them out of many areas they currently inhabit.

"Our results would indicate that the survival of many species of crop wild relatives, not just wild potato, peanuts and cowpea, are likely to be seriously threatened even with the most conservative estimates regarding the magnitude of climate change," said the studys lead author, Andy Jarvis, who is an agricultural geographer working at two CGIAR-supported centers the Colombia-based International Center for Tropical Agriculture and Bioversity International, with headquarters in Rome. "There is an urgent need to collect and store the seeds of wild relatives in crop diversity collections before they disappear. At the moment, existing collections are conserving only a fraction of the diversity of wild species that are out there."

Extinction of crop wild relatives threatens food production because they contain genes for traits such as pest resistance and drought tolerance, which plant b
'"/>


21-May-2007


Page: 1 2 3 4

Related biology news :

1. Climate change isolates Rocky Mountain butterflies
2. Climate change and permafrost thaw alter greenhouse gas emissions in northern wetlands
3. Climate change reduces Queenslands bat numbers
4. Climate change signal detected in the Indian Ocean
5. Climate policy: Its good to be in the RED
6. Climate change impacts stream life
7. Climate change a threat to Indonesian agriculture, study says
8. Climate change could trigger boom and bust population cycles leading to extinction
9. Climate changes brews trouble for marine life in European Seas, Marine Board-ESF report says
10. Granthams to fund Institute for Climate Change at Imperial College London
11. Climate changes, Cod collapse have altered North Atlantic ecosystems

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/25/2020)... ... May 22, 2020 , ... Oxford Nanopore Technologies is in advanced ... the virus that causes COVID-19. , The LamPORE assay is designed to ... numbers, to very large numbers of samples. Hardware and reagents sit outside current, ...
(Date:5/21/2020)... Mass. (PRWEB) , ... May 21, 2020 , ... ... orthopedic care across the North Shore and Greater Boston area, is pleased to ... , As one of the busiest group practices in the area, Agility Orthopedics ...
(Date:5/11/2020)... ... May 11, 2020 , ... ... platform for patients with implanted cardiac devices. The Octagos software allows healthcare professionals ... The software greatly simplifies the management of remote transmissions and at the same ...
Breaking Biology News(10 mins):
(Date:5/15/2020)... ... 2020 , ... Children with defective heart valves often have ... adults. The reason: there are no heart valve prosthetics designed to grow with ... Defense has awarded Draper, Boston Children’s Hospital and Seattle Children’s Research Institute a ...
(Date:5/14/2020)... ... May 12, 2020 , ... DuPont Nutrition & ... partner for all personal care ingredients in Russia and Belarus. Beginning May 1, ... portfolio for personal care. , The GENENCARE®OSMS product line contains a ...
(Date:5/14/2020)... ... 13, 2020 , ... Early stages of drug discovery often ... information on the drug’s mechanism of action (MOA). Gene expression profiling technologies like ... activity of molecular pathways. This information can complement phenotypic readouts and can be ...
(Date:5/5/2020)... ... 2020 , ... ProductLife Group has marked the next phase in ... after 13 years at Altran, where he was Group VP of Life Sciences and ... a Pharmacist, Xavier was involved in his early career in the development of new ...
Breaking Biology Technology:
Cached News: