Breaking breeding barriers in Lycopersicon. 3. Inheritance of self-compatibility in L. peruvianum (L.) Mill. |
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Authors: | N G Hogenboom |
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Institution: | (1) Institute for Horticultural Plant Breeding (IVT), Wageningen, the Netherlands |
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Abstract: | Summary A brief survey is given of the genetics of self-compatibilith in species with a one-locus gametophytic system of incompatibility.A study has been made of the genetics of the self-compatibility found in L. peruvianum.From the results of various test crosses and selfings and of cytological research it is concluded that self-compatibility in L. peruvianum can be based on different types of S-allele mutations, on addition of an S-allele bearing chromosome fragment, or on genes modifying the S-allele expressivity.The results further indicate that generation of new S-alleles is a frequently occurring phenomenon in inbred material of L. peruvianum and that pollen with an S-allele mutation or an extra chromosome fragment is less vital than normal pollen.A short notation for incompatibility genotypes is given. |
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