Articles
A PRELIMINARY STUDY ON PHYSIOLOGICAL AND S-ALLELE SPECIFIC BREAKDOWN OF SELF-INCOMPATIBILITY IN SWEET CHERRY
Article number
667_9
Pages
83 – 88
Language
English
Abstract
Among the S-genotypes in sweet cherry, the highest frequency of self-incompatibility breakdown was found in S3S4 genotypes (>3% fruit set when self-pollinated). However, the frequency of breakdown (expressed as either fruit set or pollen tube growth rate) did not differ among cultivars within the same S-genotype combination.
Depending on different temperatures from 10 to 25 °C, breakdown (expressed as unrestricted pollen tube growth) ranged from about 0 to 25 % in self- or cross-incompatible pollinations of all S-genotypes combinations.
The S3S4 genotypes almost always had the highest breakdown frequency at all temperatures.
However, no specific S-allele alone was associated with the increased incidence of self-incompatibility breakdown.
Depending on different temperatures from 10 to 25 °C, breakdown (expressed as unrestricted pollen tube growth) ranged from about 0 to 25 % in self- or cross-incompatible pollinations of all S-genotypes combinations.
The S3S4 genotypes almost always had the highest breakdown frequency at all temperatures.
However, no specific S-allele alone was associated with the increased incidence of self-incompatibility breakdown.
Publication
Authors
C. Choi, R.L. Andersen
Keywords
Prunus avium, pollen compatibility, self-fertility, S-genotypes, temperature
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