Theoretical and Applied Genetics

, Volume 76, Issue 1, pp 54–58

Inheritance of supernodulation in soybean and estimation of the genetically effective cell number

  • B. J. Carroll
  • P. M. Gresshoff
  • A. C. Delves


Provided the nature of inheritance is known, the frequency of homozygous mutant plants in individual M2 families (derived from M1 seed) can be used to estimate the genetically effective cell number (GECN). Segregation ratios in M3 families derived from M2 wild-type plants indicated that the supernodulation characters nts382, nts1007 and nts183 are inherited as Mendelian recessives. The nature of inheritance was also known or confirmed to be recessive by crossing the wild type to these and several other mutants derived from the same population of M2 families. Subsequently, using the frequency of mutant plants in individual M2 families, the GECN for soybean was calculated to be approximately two.

Key words

Inheritance Supernodulation Mutagenesis Soybean Genetically effective cell number(GECN) 


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Copyright information

© Springer-Verlag 1988

Authors and Affiliations

  • B. J. Carroll
    • 1
  • P. M. Gresshoff
    • 1
  • A. C. Delves
    • 1
  1. 1.Department of BotanyAustralian National UniversityCanberraAustralia
  2. 2.Plant Molecular Genetics, College of AgricultureUniversity of TennesseeKnoxvilleUSA

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