GENETIC MARKER-AIDED STUDIES OF INCOMPATIBILITY SYSTEMS IN TOMATO

Self-incompatibility (SI) is the inability of otherwise fertile gametes to produce viable zygotes upon self-fertilization. The S locus of chromosome 1 in Lycopersicon is thought to be the main controlling factor in SI. However, the significance of other chromosome segments in the control of SI or th...

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Bibliographic Details
Published inHortScience Vol. 31; no. 6; p. 912
Main Authors Bernatzky, Robert, Glaven, Richard H, Hackett, Grant R, Rivers, Bruce A
Format Journal Article
LanguageEnglish
Published 01.10.1996
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Summary:Self-incompatibility (SI) is the inability of otherwise fertile gametes to produce viable zygotes upon self-fertilization. The S locus of chromosome 1 in Lycopersicon is thought to be the main controlling factor in SI. However, the significance of other chromosome segments in the control of SI or the effect of a foreign genetic background on the S locus has not been thoroughly explored. In addition, the relationship between SI and wider interspecific crossing barriers remains unclear. Using DNA and protein markers for chromosome 1 , we have created a series of backcross lines that contain either 1) the SI locus and flanking chromosome region from a SI species in a SC species background or 2) the same chromosome region from a SC species in a SI species background. The reproductive behavior of these plants will be discussed.
ISSN:0018-5345
2327-9834
DOI:10.21273/HORTSCI.31.6.912E