PMID: 16526501Mar 11, 2006Paper

The evolution of intratetrad mating rates

Evolution; International Journal of Organic Evolution
Louise J JohnsonMichael E Hood

Abstract

Intratetrad mating, the fusion of gametes formed in a single meiosis, has unusual consequences for genetic diversity, especially in genome regions linked to mating type loci. Here we investigate the fate of modifier alleles that alter the rate of intratetrad mating, under models of heterozygote advantage and of genetic load resulting from recurrent mutation. In both cases, intratetrad mating is favored if the recombination rate between the selected locus and mating type is less than the frequency of lethal recessive alleles at that locus in the population. Positive feedback often accelerates the invasion of modifiers to the intratetrad mating rate. Recombination rate and intratetrad mating rate exert indirect selection on one another, resulting in a cascading decline in outcrossing, even in the absence of any cost of sex. However, under recurrent mutation, alleles for obligate intratetrad mating invade only very slowly, perhaps explaining why outcrossing can persist at low frequencies in a largely intratetrad mating population.

References

Apr 23, 2002·Nature Reviews. Genetics·Spencer C H Barrett
Sep 11, 2002·Annual Review of Entomology·Benjamin B Normark
Jun 12, 2003·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Michael E HoodHilary Heishman
Mar 17, 2004·Genetics·Louise J JohnsonAustin Burt
May 6, 2004·Genetics·Michael E Hood, Janis Antonovics
May 8, 2004·Nature Reviews. Genetics·Laurence D HurstMartin J Lercher
May 25, 2004·Evolution; International Journal of Organic Evolution·Janis Antonovics, Joseph Y Abrams
Jun 4, 2004·Molecular Biology and Evolution·Matthew T WebsterHans Ellegren
Feb 22, 2005·The New Phytologist·Marcy K Uyenoyama

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Citations

Nov 15, 2012·Genetics·Michael E HoodTatiana Giraud
Dec 22, 2015·Fungal Biology Reviews·Alexander IdnurmTatiana Giraud
Aug 25, 2006·BioEssays : News and Reviews in Molecular, Cellular and Developmental Biology·Michael Knop
Jun 22, 2010·Journal of Evolutionary Biology·J L Abbate, M E Hood
Sep 5, 2015·Evolution; International Journal of Organic Evolution·Michael E HoodMindy Hwang
Dec 24, 2014·Molecular Biology and Evolution·Eric FontanillasTatiana Giraud
Jun 21, 2017·Proceedings of the National Academy of Sciences of the United States of America·Sara BrancoTatiana Giraud

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