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Recognition and Rejection of Self in Plant Reproduction

Plant self-incompatibility (SI) systems are unique among self/nonself recognition systems in being based on the recognition of self rather than nonself. SI in crucifer species is controlled by highly polymorphic and co-evolving genes linked in a complex. Self recognition is based on allele-specific interactions between stigma receptors and pollen ligands that result in the arrest of pollen tube development. Commonalities and differences between SI and other self/nonself discrimination systems are discussed.

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Resource Type: Journal article/Issue, Illustration
Audience Level: Undergraduate lower division 13-14, Undergraduate upper division 15-16, Graduate, Professional (degree program), Continuing education

Author and Copyright

Authors and Editors: June B. Nasrallah of Cornell University
Publisher: AAAS
Format: text/html
Copyright and other restrictions: Yes
Cost: No


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