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Assortative reproduction in a seed beetle?
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Biology Education Centre. (The Arnqvist Lab)
2016 (English)Independent thesis Advanced level (degree of Master (Two Years)), 30 credits / 45 HE creditsStudent thesisAlternative title
Similar or dissimilar? That is the question (English)
Abstract [en]

How genetic variation for fitness is maintained is still debated in evolutionary biology. Sexually antagonistic (SA) selection, favouring alternative alleles in males and females, has been proposed to be one mechanism capable of maintaining genetic variation for fitness. However the conditions under which SA polymorphisms are maintained are still thought to be somewhat restrictive. Several models have explored potential mechanisms that may help maintain genetic variation at SA loci. One such mechanism is assortative mating by fitness, where individuals with similar fitness mate more frequently than expected by random chance. This study explores if there is such assortative reproduction for fitness in a population of Callosobruchus maculatus seed beetles, which could explain the large amounts of SA genetic variance for fitness exhibited by this population. However, on the contrary, results show that there is evidence of disassortative reproduction for fitness in this population. 

Place, publisher, year, edition, pages
2016. , p. 26
Keywords [en]
Assortative mating, assortative reproduction, genetic variation, sexually antagonistic selection, sexual conflict.
National Category
Evolutionary Biology
Identifiers
URN: urn:nbn:se:uu:diva-326543OAI: oai:DiVA.org:uu-326543DiVA, id: diva2:1126195
Educational program
Master Programme in Biology
Supervisors
Examiners
Available from: 2018-03-01 Created: 2017-07-13 Last updated: 2018-03-01Bibliographically approved

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