Phenotypic and molecular expression of self-incompatibility alleles in Arabidopsis lyrata

dc.contributor.advisorMable, Barbara K.
dc.contributor.authorPrigoda, Nadia
dc.date.accessioned2020-12-07T16:44:10Z
dc.date.available2020-12-07T16:44:10Z
dc.date.copyright2004
dc.degree.departmentDepartment of Botanyen_US
dc.degree.grantorUniversity of Guelphen_US
dc.degree.nameMaster of Scienceen_US
dc.description.abstractSelf-incompatibility (SI), the recognition and rejection of self-pollen, is useful for studying genetic and phenotypic aspects of cell-cell signaling. Two allele classes (Class A and B), separated by sequence of SRK alleles, exist in 'Arabidopsis lyrata' (Brassicaceae). Alleles were divided into at least three dominance levels; Class A and B alleles were not separated by dominance. I investigated both the dominance levels identified (phenotypic expression) and differences in expression of the classes of SRK alleles (molecular expression). For the phenotypic analysis, compatibility of crosses within full-sib families suggested four dominance groups, three containing only Class A alleles, and a fourth containing only Class B alleles. Molecular expression found that while Class A alleles are not expressed in leaf tissues, Class B alleles are unexpectedly expressed in floral and leaf tissues. Class B alleles may represent alleles recruited to the locus, and gene conversion may increase diversity at the SI locus.en_US
dc.identifier.urihttps://hdl.handle.net/10214/23200
dc.language.isoen
dc.publisherUniversity of Guelphen_US
dc.rights.licenseAll items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.
dc.subjectArabidopsis lyrataen_US
dc.subjectself-incompatabilityen_US
dc.subjectself-pollenen_US
dc.subjectallelesen_US
dc.subjectphenotypic analysisen_US
dc.titlePhenotypic and molecular expression of self-incompatibility alleles in Arabidopsis lyrataen_US
dc.typeThesisen_US

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