Variation in mitochondrial minichromosome composition between blood-sucking lice of the genus Haematopinus that infest horses and pigs

Song, Simon; Barker, Stephen C.; Shao, Renfu

doi:10.1186/1756-3305-7-144

Cited by 29 publications

(77 citation statements)

References 27 publications

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“…Slight variation in this structure is found only in two minichromosomes of Hoplopleura rodent lice (Dong et al. 2014a) and in one minichromosome of the horse louse (Song et al. 2014), in which an additional, short non-coding region is present.…”

Section: Resultsmentioning

confidence: 99%

“…The mt genomes of the two pig lice and the horse louse comprise nine minichromosomes each and are the least fragmented among the sucking lice (Jiang et al. 2013; Song et al. 2014).…”

Section: Resultsmentioning

confidence: 99%

“…The different locations of trnI between the great ape lice and the Hoplopleura rodent lice can be explained by two independent split events of nad2-trnI-cox1-trnL 2 minichromosome if it is ancestral to sucking lice (Jiang et al. 2013; Dong et al 2014a; Song et al. 2014).…”

Section: Resultsmentioning

confidence: 99%

“…2015); 3) the domestic pig louse, Haematopinus suis , and the wild pig louse, Haematopinus apri (Jiang et al. 2013); 4) the horse louse, Haematopinus asini (Song et al. 2014); 5) the lice of the greater bandicoot rat and the Asian house rat, Polyplax asiatica and Polyplax spinulosa (Dong et al.…”

Section: Introductionmentioning

confidence: 99%

“…Indeed, even species of the same genus differ from one another in mt karyotype (Herd et al. 2015; Song et al. 2014; Dong et al.…”

Section: Introductionmentioning

confidence: 99%

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The Mitochondrial Genome of the Guanaco Louse, Microthoracius praelongiceps: Insights into the Ancestral Mitochondrial Karyotype of Sucking Lice (Anoplura, Insecta)

Shao

Barker

et al. 2017

Genome Biology and Evolution

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Fragmented mitochondrial (mt) genomes have been reported in 11 species of sucking lice (suborder Anoplura) that infest humans, chimpanzees, pigs, horses, and rodents. There is substantial variation among these lice in mt karyotype: the number of minichromosomes of a species ranges from 9 to 20; the number of genes in a minichromosome ranges from 1 to 8; gene arrangement in a minichromosome differs between species, even in the same genus. We sequenced the mt genome of the guanaco louse, Microthoracius praelongiceps, to help establish the ancestral mt karyotype for sucking lice and understand how fragmented mt genomes evolved. The guanaco louse has 12 mt minichromosomes; each minichromosome has 2–5 genes and a non-coding region. The guanaco louse shares many features with rodent lice in mt karyotype, more than with other sucking lice. The guanaco louse, however, is more closely related phylogenetically to human lice, chimpanzee lice, pig lice, and horse lice than to rodent lice. By parsimony analysis of shared features in mt karyotype, we infer that the most recent common ancestor of sucking lice, which lived ∼75 Ma, had 11 minichromosomes; each minichromosome had 1–6 genes and a non-coding region. As sucking lice diverged, split of mt minichromosomes occurred many times in the lineages leading to the lice of humans, chimpanzees, and rodents whereas merger of minichromosomes occurred in the lineage leading to the lice of pigs and horses. Together, splits and mergers of minichromosomes created a very complex and dynamic mt genome organization in the sucking lice.

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Section: Resultsmentioning

confidence: 99%

“…The mt genomes of the two pig lice and the horse louse comprise nine minichromosomes each and are the least fragmented among the sucking lice (Jiang et al. 2013; Song et al. 2014).…”

Section: Resultsmentioning

confidence: 99%