Tallury, S P and Gerrano, A S and Deshmukh, D and Han, S and Mekonnen, T W and Labuschagne, M T (2025) Peanut Genetic Resources: Status, Challenges, and Use in Peanut Genetic Improvement. In: Peanut Genomics and Biotechnology Status and Prospects for Sustainability. CRC Press, Boca Raton, pp. 17-34. ISBN 9781003360988
Full text not available from this repository.Abstract
Peanut (Arachis hypogaea L.) is an annual food legume grown in over 100 countries for many uses, primarily as vegetable oil or snacks in local or regional diets, and the dried vines are used as fodder for livestock. Around the world, it is popularly known as groundnut because of its unique feature of producing flowers above ground with below-ground development of pods. Genus Arachis originated in South America, with several primary centers of diversity located in Argentina, Bolivia, Brazil, Paraguay, and Uruguay. Spread across these five countries, the genus contains about 83 described species grouped into nine different taxonomic sections with unique genomes and cross-compatibilities. The cultivated species, Arachis hypogaea, originated from a natural hybridization event between two wild Arachis species about 10,000 years ago. Following domestication, it spread to other parts of the world, displaying several secondary centers of diversity. Arachis hypogaea is a tetraploid, while many of the wild species are diploids, with a few other tetraploid and aneuploid species also present in the genus. Large germplasm collections of cultivated as well as wild species are preserved in several gene banks around the world. These germplasm collections provide the primary source of genetic diversity for peanut improvement to meet present and future demands. Several accessions have been used in developing improved cultivars, especially involving interspecific hybridization with the wild species. The derived genetic resources provided populations for molecular and genomic investigations, leading to the development of valuable resources for peanut breeders worldwide. These genetic resources act as a reservoir for many economically important traits, including yield, drought tolerance, resistance to diseases, nutritional quality, and long-term resilience of the crop against evolving pests and pathogens and a changing climate.
| Item Type: | Book Section |
|---|---|
| Divisions: | Global Research Program - Accelerated Crop Improvement |
| CRP: | UNSPECIFIED |
| Subjects: | Others > Plant Genetic Resources Mandate crops > Groundnut Others > Germplasm |
| Depositing User: | Mr Nagaraju T |
| Date Deposited: | 02 Jan 2026 07:56 |
| Last Modified: | 02 Jan 2026 07:56 |
| URI: | http://oar.icrisat.org/id/eprint/13411 |
| Acknowledgement: | UNSPECIFIED |
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