Genetic Self-Incompatibility in Oenothera subsect Euoenothera

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Science  20 Apr 1979:
Vol. 204, Issue 4390, pp. 327
DOI: 10.1126/science.204.4390.327


Although it has been postulated that genetic self-incompatibility was involved in the origin of complex heterozygotes in Oenothera subsect Euoenothera, it has not been detected in any species of this well-studied group. It is now reported for populations of Oenothera grandiflora from west central Alabama, and should be sought in other populations of this species, which has been in cultivation for nearly two centuries.