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Variation studies in a wild groundnut species, Arachis stenosperma Krapov. & W.C. Gregory nov. sp.

Published online by Cambridge University Press:  16 October 2024

A. K. Singh ,
J. Smartt  and
Rakesh Singh
A. K. Singh*
Affiliation:
1National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi 110 012, India
J. Smartt
Affiliation:
2School of Biological Sciences, University of Southampton, Southampton S016 5PX, UK
Rakesh Singh
Affiliation:
1National Bureau of Plant Genetic Resources, Pusa Campus, New Delhi 110 012, India
*
* Corresponding author. E-mail: [email protected]
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Abstract

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Wild relatives of crop species are known to be sources of genetic diversity that can be used in crop improvement. However, they have not always been studied adequately for the variation that may exist within them, for traits which may have important implications from an evolutionary point of view and their use in breeding programmes. In the present study, a wild groundnut species, Arachis stenosperma, has been studied for variation between accessions collected from different sites in Brazil for morphological and certain nutritional traits, and for disease resistance. Multivariate analysis of 23 characters grouped 18 accessions into two clusters, while one accession, ICG 14927, was distinct from these. However, in protein profile they all appear identical. Hence, the variation appears to have arisen in response to the climatic conditions of their habitat, which has implications for use of these accessions in breeding programmes. The variation in these traits could not be associated with any phytogeographical regions. The dispersal of this species from its centre of origin and diversity to other parts of Brazil appears to be recent and without any identifiable selection pressures having operated.

Keywords

Arachis stenospermagroundnut rustprincipal coordinate analysisproteinprotein profilevariation
Type
Research Article
Information
Plant Genetic Resources , Volume 2 , Issue 2 , August 2004 , pp. 99 - 106
Copyright
© NIAB 2004

References

Gardner, MEB and Stalker, HT (1983) Cytology and leafspot resistance of section Arachis amphiploids and their hybrids with Arachis hypogaea. Crop Science 23: 1069–1074.CrossRefGoogle Scholar
International Board for Plant Genetic Resources (IBPGR) (1990) International Crop Network Series. 2. Report of a Workshop on the Genetic Resources of Wild Arachis Species. Including Preliminary Descriptors for Arachis (IBPGR/ICRISAT). Rome: IBPGR.Google Scholar
Kolawale, KB (1976) A short progress report on transfer of Cercospora resistant traits to the cultivated Arachis hypogaea L. Samaru Agricultural Newsletter 18: 40–43.Google Scholar
Krapovickas, A and Gregory, WC (1994) Taxonomia del genero Arachis (Leguminosae). Bonplandia 8: 1–186.CrossRefGoogle Scholar
Krishna, TG, Pawar, SE and Mitra, R (1986) Variation and inheritance of the arachin polypeptides of groundnut (Arachis hypogaea L). Theoretical and Applied Genetics 73: 82–87.CrossRefGoogle ScholarPubMed
Moss, JP (1980) Wild species in the improvement of groundnuts. In: Summerfield, RJ and Bunting, AH (eds) Advances in Legume Science, Vol. 2. London: Royal Botanic Gardens, pp. 523–335.Google Scholar
Rohlf, FJ (1992) NTSYS-pc Numerical Taxonomy and Multivariate Analysis Systems, Version 170. Setauket, NY: Exeter Software.Google Scholar
Singh, AK (1985) Genetic introgression from compatible wild species into cultivated groundnut. In: Proceedings of the International Workshop on Cytogenetics of Arachis, 31 October to 2 November 1983, ICRISAT, Patancheru, India, pp. 107–117.Google Scholar
Singh, AK (1986a) Utilization of wild relatives in the genetic improvement of Arachis hypogaea L. 7. Autotetraploid production and prospects in interspecific breeding. Theoretical and Applied Genetics 72: 164–169.CrossRefGoogle Scholar
Singh, AK (1986b) Utilization of wild relatives in genetic improvement of Arachis hypogaea L. 8. Synthetic amphidiploids and prospects in interspecific breeding. Theoretical and Applied Genetics 72: 433–439.CrossRefGoogle Scholar
Singh, AK and Simpson, CE (1999) Biosystematics and genetic resources. In: Smartt, J (ed.) The Groundnut Crop—A Scientific Basis for Improvement. London: Chapman & Hall, pp. 96–137.Google Scholar
Singh, AK, Sivaramakrishnan, S, Mengesha, MH and Ramaiah, CD (1991) Phylogenetic relations in section Arachis based on seed protein profile. Theoretical and Applied Genetics 82: 593–597.CrossRefGoogle ScholarPubMed
Singh, AK, Subrahmanyam, P and Gurtu, S (1996) Variation in a wild groundnut species, Arachis duranensis Kapov. & WC Gregory. Genetic Resources and Crop Evolution 43: 135–142.CrossRefGoogle Scholar
Singh, U and Jambunathan, R (1980) Evaluation of rapid methods for estimation of protein in chickpea (Cicer arietinum). Journal of the Science of Food and Agriculture 31: 247–254.CrossRefGoogle Scholar
Smartt, J and Gregory, WC (1967) Interspecific cross-compatibility between the cultivated peanut Arachis hypogaea L. and other members of genus Arachis. Oleagineux 22: 455–459.Google Scholar
Stalker, HT (1990) morphological appraisal of wild species in section Arachis of peanuts. Peanut Science 17: 117–122.CrossRefGoogle Scholar
Subrahmanyam, P, Moss, JP and Rao, VR (1983) Resistance to peanut rust in wild Arachis species. Plant Disease 67: 209–212.CrossRefGoogle Scholar