Submitted to: American Peanut Research and Education Society Proceedings
Publication Type: Abstract Only
Publication Acceptance Date: 4/1/2006
Publication Date: 7/11/2006
Citation: Barkley, N.L., Dean, R., Pittman, R.N., Wang, M.L., Holbrook, C.C., Pederson, G.A. 2006. Genetic Diversity of the Peanut Mini Core. American Peanut Research and Education Society Proceedings. Available: http://www.apres.okstate.edu/
Technical Abstract: Thirty-one genomic SSR markers with M13-tail attached were used to assess genetic diversity in the peanut mini core, which is maintained by the USDA-ARS Plant Genetic Resources Conservation Unit (USDA, ARS, PGRCU) in Griffin, GA. The M13-tailed method was effective in discriminating individuals and was cost effective. The data set consisted of 139 accessions, which included the peanut (Arachis hypogaea L.) mini core, a few botanical varieties and some wild relatives. A total of 477 alleles were detected in this data set with an average of 15.4 alleles per locus. The cultivated peanut (Arachis hpyogaea L.) mini core produced a total of 312 alleles with an average of 10.1 alleles per locus. A phylogenetic tree was constructed to determine the interspecific and intraspecific relationship in this data set. Most all of the peanut accessions classified in the botanical variety Arachis hypogaea fastigiata fastigiata and accessions classified as Arachis hypogaea fastigiata vulgaris clustered with one another lending further support to the current taxonomy. This study allowed the examination of the diversity present and phylogenetic relationship in the peanut mini core which has not been previously reported.