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WOLBACHIA INFECTION AND DRAMATIC INTRASPECIFIC MITOCHONDRIAL DNA DIVERGENCE IN A FIG WASP
Author(s) -
Xiao JinHua,
Wang NingXin,
Murphy Robert W.,
Cook James,
Jia LingYi,
Huang DaWei
Publication year - 2012
Publication title -
evolution
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.84
H-Index - 199
eISSN - 1558-5646
pISSN - 0014-3820
DOI - 10.1111/j.1558-5646.2011.01561.x
Subject(s) - biology , wolbachia , mitochondrial dna , genetics , genome , introgression , intraspecific competition , evolutionary biology , gene , zoology
Mitochondria and Wolbachia are maternally inherited genomes that exhibit strong linkage disequilibrium in many organisms. We surveyed Wolbachia infections in 187 specimens of the fig wasp species, Ceratosolen solmsi , and found an infection prevalence of 89.3%. DNA sequencing of 20 individuals each from Wolbachia ‐infected and ‐uninfected subpopulations revealed extreme mtDNA divergence (up to 9.2% and 15.3% in CO1 and cytochrome b, respectively) between infected and uninfected wasps. Further, mtDNA diversity was significantly reduced within the infected group. Our sequencing of a large part of the mitochondrial genome from both Wolbachia‐ infected and ‐uninfected individuals revealed that high sequence divergence is common throughout the mitochondrial genome. These patterns suggest a partial selective sweep of mitochondria subsequent to the introduction of Wolbachia into C. solsmi , by hybrid introgression from a related species.