Puppala, N and Upadhyaya, H D and Dwivedi, S L and Kottapalli, K R and Payton, P and Burow, M (2008) Genetic enhancement of Valencia core collection and molecular characterization of U.S. peanut mini core collection using SSR markers. In: 3rd International Conference for Peanut Genomics and Biotechnology on Advances in Arachis through Genomics and Biotechnology, 4-8 November 2008, ICRISAT Patancheru, Andhra Padesh, India.
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Abstract
A core collection is a gateway for the utilization of diverse accessions with beneficial traits in applied breeding programs. 630 USDA Valencia peanut germplasm and a control cultivar (New Mexico Valencia C) were evaluated for 26 descriptors in augmented design for two seasons. The accessions were stratified by country of origin, and data on morphological and agronomic descriptors were used for clustering following Ward’s method. About 10% or a minimum of one accession from each cluster and region was selected to develop core subset of 77 accessions. The similarity in correlation coefficients in entire collection and core subset suggest that this core subset has preserved most of the co-adapted gene complexes controlling these associations. The peanut breeders engaged in improving the genetic potential of Valencia peanuts will find this core subset useful in cultivar development.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Divisions: | UNSPECIFIED |
| CRP: | UNSPECIFIED |
| Subjects: | Others > Agriculture-Farming, Production, Technology, Economics |
| Depositing User: | Library ICRISAT |
| Date Deposited: | 27 Dec 2011 06:25 |
| Last Modified: | 27 Dec 2011 06:25 |
| URI: | http://oar.icrisat.org/id/eprint/5173 |
| Acknowledgement: | UNSPECIFIED |
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