ISHS Acta Horticulturae 224: Fruit Breeding
SELF-COMPATIBILITY IN ALMOND: TRANSMISSION AND RECENT ADVANCES IN BREEDING |
| Authors: | R. Socias, A.J. Felipe |
| Abstract:
Almond is a self-incompatible species with very few exceptions. Almond breeding programs have therefore fostered the development of self-compatible cultivars. The study of self-compatibility in the offspring of different crosses involving two self-compatible cultivars or one self-compatible and one self-incompatible cultivar indicates that self-compatibility is transmitted to the offspring and makes it possible to suggest that in almond it is probably due to a Sf allele in the S series of the self-incompatibility locus, and that the forms so far studied are heterozygous for Sf. Self-compatibility could arise as a mutation or as a transmission from another species such as P. webbii in view of the geographical distribution of both species. As a result of our breeding program, three self-compatible, late-bloomong cultivars have been released, being the first to be commercially available from such a program. | |
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