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You are here: Home / Associated publications / Belgian Journal of Zoology / Bibliographic References / Fitness-heterozygosity associations differ between male and female winter moths Operophtera brumata L.

Stefan Van Dongen, Thierry Backeljau, Erik Matthysen and Andre Dhondt (2007)

Fitness-heterozygosity associations differ between male and female winter moths Operophtera brumata L.

BELGIAN JOURNAL OF ZOOLOGY, 137(1):41-45.

The association between heterozygosity and fitness is positive but weak on average and varies between studies. inbreeding has been invoked as the driving force between the positive heterozygosity-fitness associations, yet in spatio-temporally stable environments a negative correlation is expected. Furthermore, different patterns can arise because of the effects of natural selection on different loci and variation can be expected among groups of individuals that experience different levels of stress. In this paper we report on fitness-heterozygosity associations in the winter moth for six allozyme loci. The relationship is estimated for males and females separately, in four areas differing in their degree of fragmentation, and variation among loci is modelled. We introduce a linear mixed model framework to achieve this analysis. This approach differs from more traditional (multiple) regression analyses and allows testing specific interactions. We show that fitness, as estimated by body size, is negatively correlated with heterozygosity, but only so in females. This association does not vary significantly among loci and the four areas. We speculate that a trade-off between fitness-consequences of inbreeding and outbreeding at different stages of the winter moth life cycle could explain the observed patterns.

Peer Review, International Redaction Board, Impact Factor, Open Access
fitness; heterozygosity; inbreeding; outbreeding; natural selection; genetic drift; winter moth; Operophtera
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Taxonomy and Phylogeny
BJZ

ISSN 2295-0451 (online version)
ISSN 0777-6279 (printed version)
impact factor 2015: 0,87.

Editor-in-Chief:
Prof. Dr. Isa Schön
Royal Belgian Institute of Natural Sciences
Vautierstraat 29
1000 Brussels, Belgium

 



1863-1903
Annales de la Société malacologique de Belgique
 
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​Annales de la Société royale malacologique et zoologique de Belgique
 
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Belgian Journal of Zoology