Theoretical and Applied Genetics

, Volume 89, Issue 6, pp 682–686 | Cite as

Allelism of endosperm balance number (EBN) in Solanum acaule Bitt. and other wild potato species

  • J. B. Bamberg


The inheritance of endosperm balance number (EBN), a genetic, dose-dependent crossability system functioning in tuber-bearing Solanum (potato) species, was investigated for certain wild potato species having an EBN equal to one half of their ploidy. The EBN of Solanum acaule, a disomic 4(2EBN) South American species, was investigated by producing F1 and F2 hybrids with artificial 4x(2EBN) S. commersonii. This allowed assessment of recombination among the two genomes of disomic S. acaule and that of S. commersonii. When crossability of the hybrids with 1EBN, 2EBN and 4EBN standards was tested, no variation for EBN was detected. The apparent lack of recombination and segregation for EBN in these hybrids indicates that the genomes of S. acaule and S. commersonii carry EBN in a genetically-similar way. Combined with previous reports, these data indicate that the inheritance of EBN is similar in widely-separated taxa from South America and Mexico.

Key words

Potato Solanum Germplasm Crossability 


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Copyright information

© Springer-Verlag 1994

Authors and Affiliations

  • J. B. Bamberg
    • 1
  1. 1.USDA, Agricultural Research Service, Vegetable Crops Research Unit, Potato Introduction StationSturgeon BayUSA

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