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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jgen/095/01/0089-0098

    • Keywords

       

      PS; growth habit; recombination frequency; dolichos bean.

    • Abstract

       

      An investigation on inheritance of qualitative traits in dolichos bean revealed biallelic monogenic control of photoperiod-induced sensitivity to flowering time and flower colour in F$_{2}$ and F$_{3}$ generations. While, growth habit and pod curvature areeach controlled by two genes that exhibit classical complementary epistasis, raceme emergence was controlled by two genesthat displayed classical inhibitory epistasis. The dominant alleles, at two different unlinked pairs of genes are necessary forplants to exhibit indeterminate growth habit and bear straight pods. Any other combination of alleles at the two pairs of genesresult in plants displaying determinate growth habit and bearing curved pods. While, the genes controlling growth habit, PSFTand raceme emergence are linked. Those controlling flower colour and pod curvature are segregated independent of eachother. These results are discussed in relation to strategies for breeding dolichos bean.

    • Author Affiliations

       

      KEERTHI C M1 RAMESH S1 BYREGOWDA M2 MOHAN RAO A1 RAJENDRA PRASAD B S2 VAIJAYANTHI P V1

      1. Department of Genetics and Plant Breeding, and
      2. All India Coordinated Research Project (AICRP) on Pigeonpea, Zonal Agricultural Research Station (ZARS), University of Agricultural Sciences (UAS), Gandhi Krishi Vignana Kendra (GKVK), Bengaluru 560 065, India
    • Dates

       
  • Journal of Genetics | News

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