Evolutionary genetics of self-incompatibility in the Solanaceae

Evolutionary genetics of self-incompatibility in the Solanaceae The self-incompatibility (S) gene in flowering plants has long been appreciated as an example of extreme allelic polymorphism maintained by frequency-dependent selection. Recent studies of population samples of S-allele sequences obtained by RT-PCR from five species of Solanaceae now reveal a picture of conspicuous inter-specific variation in both S-allele number and age. Explanations for this variation are examined with reference to current theory. We propose that changes in species' effective population size, particularly those associated with the evolution of different life histories, best account for interspecific differences in both the number and average age of S alleles. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Plant Molecular Biology Springer Journals

Evolutionary genetics of self-incompatibility in the Solanaceae

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Publisher
Springer Journals
Copyright
Copyright © 2000 by Kluwer Academic Publishers
Subject
Life Sciences; Biochemistry, general; Plant Sciences; Plant Pathology
ISSN
0167-4412
eISSN
1573-5028
D.O.I.
10.1023/A:1006336206637
Publisher site
See Article on Publisher Site

Abstract

The self-incompatibility (S) gene in flowering plants has long been appreciated as an example of extreme allelic polymorphism maintained by frequency-dependent selection. Recent studies of population samples of S-allele sequences obtained by RT-PCR from five species of Solanaceae now reveal a picture of conspicuous inter-specific variation in both S-allele number and age. Explanations for this variation are examined with reference to current theory. We propose that changes in species' effective population size, particularly those associated with the evolution of different life histories, best account for interspecific differences in both the number and average age of S alleles.

Journal

Plant Molecular BiologySpringer Journals

Published: Oct 16, 2004

References

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