ArticleMolecular biology reports2012
Molecular characterization of Vigna radiata (L.) Wilczek genotypes based on nuclear ribosomal DNA and RAPD polymorphism.
Article in Molecular biology reports, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Genetic Confirmation of Mungbean (Vigna radiata) and Mashbean (Vigna mungo) Interspecific Recombinants using Molecular Markers.Frontiers in plant science · 2015Article
- Assessment of hybridization among wild and cultivated Vigna unguiculata subspecies revealed by arbitrarily primed polymerase chain reaction analysis.AoB PLANTS · 2012Article
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4 authors.
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Abstract
Mungbean germplasm characterization, evaluation and improvement are fundamentally based on morpho-agronomic traits. The lack of break-through in mungbean production has been due to non-availability of genetic variability for high yield potential. Forty-four genotypes of mungbean [Vigna radiata (L.)Wilczek] were subjected to random amplified polymorphic DNA (RAPD) analysis to assess the genetic diversity and relationships among the genotypes. Multilocus genotyping by twelve RAPD primers generated 166 markers and detected an average of intraspecific variation amounting to 82% polymorphism in banding patterns. Dendrogram obtained from cluster analysis delineated all the 44 genotypes into six clusters. Higher values of Nei's gene diversity (h) and Shannon information index (i) and genetic distance analysis validate existence of wide genetic diversity among mungbean genotypes tested. Besides internal transcribed spacer (ITS) length variations, single nucleotide polymorphisms (SNPs) and insertions/deletions (INDELS) were detected at number of sites in nuclear rDNA region and the sequences of representatives of each sub-cluster and all distinct genotypes have been submitted to NCBI database and assigned Gen accession numbers HQ 148136-148147. Multiple sequence alignment revealed further lineages of distinct genotypes with main RAPD clusters. The measures of relative genetic distances among the genotypes of mungbean did not completely correlate the geographical places of their development. The homogeneous phenotypic markers proved insufficient in exhibiting genetic divergence among mungbean genotypes studied. RMG-62, RMG-976, and NDM-56 have been identified as potential source of parents for crop improvement. RAPD primers, OPA-9 and OPA-2 as polymorphic genetic markers and number of pods/plant and number of seeds/plant as dependable phenotypic markers have been identified for improving yield potentials. This genetic diversity will be of significance in developing intraspecific crosses in mungbean crop improvement programme.
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