Phylogenetic relationships in the genus Arachis based on seed protein profiles uri icon

abstract

  • Seed protein profiles of 19 accessions representing 7 sections of the genus Arachis were studied using SDS-PAGE. The general profile showed appreciable homology between these taxa, supporting their classification based on morphology and cross-compatibility relationships. The accessions of section Arachis showed much variation, thus confirming inferences from earlier studies. Variation between accessions of a species is limited. Accessions of the sections Ambinervosae and Caulorhizae formed one cluster and accessions of sections Erectoides and Procumbensae formed another, while the representative accessions of sections Triseminalae and Extranervosae formed two independent clusters. Using the percentage of dissimilarity in electrophoretic bands as a statistical genetic distance between accessions, section Arachis (containing the cultivated groundnut, A. hypogaea) is phylogenetically closest to section Erectoides followed by Procumbensae, Ambinervosae, Caulorhizae, Triseminalae and Extranervosae, respectively

publication date

  • 1994
  • 1994