Journal
MITOCHONDRION
Volume 13, Issue 6, Pages 852-861Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.mito.2013.06.002
Keywords
Nuclear mitochondrial DNA; Linear mtDNA; Numt; Australia; Mackerel
Categories
Funding
- Australian Fisheries Research & Development Corporation [2005/010]
- Queensland Government
- [JX559739-JX559746]
- [KC460669-KC460673]
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Using mitochondrial DNA for species identification and population studies assumes that the genome is maternally inherited, circular, located in the cytoplasm and lacks recombination. This study explores the mitochondrial genomes of three anomalous mackerel. Complete mitochondrial genome sequencing plus nuclear microsatellite genotyping of these fish identified them as Scomberomorus munroi (spotted mackerel). Unlike normal S. munroi, these three fish also contained different linear, mitochondrial genomes of Scomberomorus semifasciatus (grey mackerel). The results are best explained by hybridisation, paternal leakage and mitochondrial DNA linearization. This unusual observation may provide an explanation for mtDNA outliers in animal population studies. (C) 2013 Elsevier B.V. and Mitochondria Research Society. All rights reserved.
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