Original Article

Heredity (1990) 64, 367–370; doi:10.1038/hdy.1990.45

Genetic evidence for the conversion of the morphinan alkaloid thebaine to oripavine in interspecific hybrids between Papaver bracteatum and Papaver orientale1

J Milo2, A Levy2, D Palevitch2 and G Ladizinsky3

  1. 2Dept. of Medicinal, Spice and Aromatic Plants, Agricultural Research Organization, The Volcani Centre, Bet-Dagan 50-250, Israel
  2. 3Hebrew University, Faculty of Agriculture, Rehovot, Israel

1Contribution no. 2793-E, 1989 series from the Agricultural Research Organization, The Volcani Center, Bet-Dagan 50-250, Israel.

Received 10 October 1989.

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Abstract

The alkaloid profiles of ripe capsules of Papaver bracteatum, P. orientale and their interspecific hybrids (F1 and BCF1) were determined and compared. In the hybrids the thebaine content declined, while that of oripavine was higher than in the parental species. The results provided genetic evidence for the biosynthetic linkage between those alkaloids. A genetic model, assuming dosage effect interaction between the genomes of the two species was elaborated. The significance of the results for breeding purposes was considered.

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References

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