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- W1966128212 abstract "Strict maternal inheritance is considered a hallmark of animal mtDNA. Although recent reports suggest that paternal leakage occurs in a broad range of species, it is still considered an exceptionally rare event. To evaluate the impact of paternal leakage on the evolution of mtDNA, it is essential to reliably estimate the frequency of paternal leakage in natural populations. Using allele-specific real-time quantitative PCR (RT-qPCR), we show that heteroplasmy is common in natural populations with at least 14% of the individuals carrying multiple mitochondrial haplotypes. However, the average frequency of the minor mtDNA haplotype is low (0.8%), which suggests that this pervasive heteroplasmy has not been noticed before due to a lack of power in sequencing surveys. Based on the distribution of mtDNA haplotypes in the offspring of heteroplasmic mothers, we found no evidence for strong selection against one of the haplotypes. We estimated that the rate of paternal leakage is 6% and that at least 100 generations are required for complete sorting of mtDNA haplotypes. Despite the high proportion of heteroplasmic individuals in natural populations, we found no evidence for recombination between mtDNA molecules, suggesting that either recombination is rare or recombinant haplotypes are counter-selected. Our results indicate that evolutionary studies using mtDNA as a marker might be biased by paternal leakage in this species." @default.
- W1966128212 created "2016-06-24" @default.
- W1966128212 creator A5019579446 @default.
- W1966128212 creator A5054925123 @default.
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- W1966128212 date "2013-03-04" @default.
- W1966128212 modified "2023-10-11" @default.
- W1966128212 title "Extensive paternal mt<scp>DNA</scp>leakage in natural populations of<i><scp>D</scp>rosophila melanogaster</i>" @default.
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- W1966128212 doi "https://doi.org/10.1111/mec.12256" @default.
- W1966128212 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3659417" @default.
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