Genetic control of Endosperm Balance Number (EBN) in the Solanaceae based on trisomie and mutation analysis

S. A. Johnston, R. E. Hanneman

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

The genetic control of Endosperm Balance Number (EBN) was studied using trisomies and induced mutation. In order to induce and detect a change in a factor determining the EBN of the male, pollen from tetraploid Datura was irradiated and used to pollinate diploids. No triploids were produced in over 70 000 fertilizations. At least 70 would have been expected if the deletion of the function of a single gene could change the EBN. An attempt was made to find a particular chromosome that could alter the EBN of the female when it was present as the extra chromosome in 2x+1 × 4x crosses. In tests of trisomies in both Datura and Solanum (potato) no chromosome could be found that changed the EBN. Therefore, it is concluded that more than one gene and more than one chromosome is involved in determining EBN.

Original languageEnglish (US)
Pages (from-to)314-321
Number of pages8
JournalGenome
Volume39
Issue number2
DOIs
StatePublished - Apr 1996
Externally publishedYes

Keywords

  • Crossing barriers
  • Datura
  • Endosperm
  • Potato
  • Speciation

ASJC Scopus subject areas

  • Biotechnology
  • Molecular Biology
  • Genetics

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