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2003 The Society for the Study of Evolution. All rights reserved. Evolution, 57(2), 2003, pp. 305316
 

Summary: 305
2003 The Society for the Study of Evolution. All rights reserved.
Evolution, 57(2), 2003, pp. 305316
NO ASSOCIATION BETWEEN MITOCHONDRIAL DNA HAPLOTYPES AND A
FEMALE-LIMITED MIMICRY PHENOTYPE IN PAPILIO GLAUCUS
PETER ANDOLFATTO,1,2 J. MARK SCRIBER,3 AND BRIAN CHARLESWORTH1
1Institute of Cell, Animal and Population Biology, University of Edinburgh, Edinburgh Scotland, EH9 3JT United Kingdom
2E-mail: Peter.Andolfatto@ed.ac.uk
3Department of Entomology, Michigan State University, East Lansing, Michigan 48824
Abstract. Alternative alleles at a locus on the W chromosome of Papilio glaucus (causing dark or yellow wing colors,
respectively) underlie a female-limited mimicry polymorphism thought to be maintained by balancing selection. In
species with heterogametic females (i.e., the ZZ-male/ZW-female sex chromosome system), the mitochondrial DNA
and the W chromosome are genetically linked because they are both maternally transmitted. We investigate the
association of COI and COII mitochondrial DNA haplotypes with alternative W-linked phenotypes. Surprisingly, we
find no congruence between mitochondrial DNA genealogies and inferred W-linked color alleles in P. glaucus. Using
a maximum-likelihood phylogenetic approach, we reject the hypothesis of monophyly for dark-morph mitochondrial
DNA lineages, even in the presence of putative low-frequency mimicry suppressor alleles or alternative melanizing
factors. The most likely genealogical tree topologies assume more than one exchange event between mitochondrial
DNA cytotype and the W-linked color morph. These results suggest that there is either paternal leakage of mitochondrial
DNA or that more than two W-linked alleles underlie the alternative color morphs. Using data from an additional

  

Source: Andolfatto, Peter - Department of Ecology and Evolutionary Biology, Princeton University

 

Collections: Biology and Medicine