On the evolution of fluctuating segregation distortion

Uri Liberman, Marcus W. Feldman

Research output: Contribution to journalArticlepeer-review


Previous mathematical models of the genetic control by one locus of the segregation at another have all concluded that alleles causing departures from Mendelian segregation should succeed. In this study the segregation ratios induced at the major locus by the modifier locus fluctuate cyclically. It is shown that if initially there is Mendelian segregation and if the rare modifying allele induces symmetric fluctuation about the Mendelian ratios it cannot succeed. It is further proven that if initially there are symmetric fluctuations about Mendelian segregation then an allele reducing the amplitude of the fluctuation will succeed.

Original languageEnglish
Pages (from-to)301-317
Number of pages17
JournalTheoretical Population Biology
Issue number3
StatePublished - Jun 1982


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