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Atp8 is in the ground pattern of flatworm mitochondrial genomes

Overview of attention for article published in BMC Genomics, May 2017
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Title
Atp8 is in the ground pattern of flatworm mitochondrial genomes
Published in
BMC Genomics, May 2017
DOI 10.1186/s12864-017-3807-2
Pubmed ID
Authors

Bernhard Egger, Lutz Bachmann, Bastian Fromm

Abstract

To date, mitochondrial genomes of more than one hundred flatworms (Platyhelminthes) have been sequenced. They show a high degree of similarity and a strong taxonomic bias towards parasitic lineages. The mitochondrial gene atp8 has not been confidently annotated in any flatworm sequenced to date. However, sampling of free-living flatworm lineages is incomplete. We addressed this by sequencing the mitochondrial genomes of the two small-bodied (about 1 mm in length) free-living flatworms Stenostomum sthenum and Macrostomum lignano as the first representatives of the earliest branching flatworm taxa Catenulida and Macrostomorpha respectively. We have used high-throughput DNA and RNA sequence data and PCR to establish the mitochondrial genome sequences and gene orders of S. sthenum and M. lignano. The mitochondrial genome of S. sthenum is 16,944 bp long and includes a 1,884 bp long inverted repeat region containing the complete sequences of nad3, rrnS, and nine tRNA genes. The model flatworm M. lignano has the smallest known mitochondrial genome among free-living flatworms, with a length of 14,193 bp. The mitochondrial genome of M. lignano lacks duplicated genes, however, tandem repeats were detected in a non-coding region. Mitochondrial gene order is poorly conserved in flatworms, only a single pair of adjacent ribosomal or protein-coding genes - nad4l-nad4 - was found in S. sthenum and M. lignano that also occurs in other published flatworm mitochondrial genomes. Unexpectedly, we unambiguously identified the full metazoan mitochondrial protein-coding gene complement including atp8 in S. sthenum and M. lignano. A subsequent search detected atp8 in all mitochondrial genomes of polyclad flatworms published to date, although the gene wasn't previously annotated in these species. Manual, but not automated genome annotation revealed the presence of atp8 in basally branching free-living flatworms, signifying both the importance of manual data curation and of diverse taxon sampling. We conclude that the loss of atp8 within flatworms is restricted to the parasitic taxon Neodermata.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 47 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 47 100%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 17 36%
Student > Ph. D. Student 7 15%
Other 3 6%
Researcher 3 6%
Student > Doctoral Student 2 4%
Other 7 15%
Unknown 8 17%
Readers by discipline Count As %
Medicine and Dentistry 18 38%
Agricultural and Biological Sciences 9 19%
Biochemistry, Genetics and Molecular Biology 8 17%
Pharmacology, Toxicology and Pharmaceutical Science 1 2%
Environmental Science 1 2%
Other 1 2%
Unknown 9 19%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 3. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 01 February 2018.
All research outputs
#13,374,110
of 23,577,654 outputs
Outputs from BMC Genomics
#4,692
of 10,787 outputs
Outputs of similar age
#151,773
of 314,574 outputs
Outputs of similar age from BMC Genomics
#97
of 221 outputs
Altmetric has tracked 23,577,654 research outputs across all sources so far. This one is in the 42nd percentile – i.e., 42% of other outputs scored the same or lower than it.
So far Altmetric has tracked 10,787 research outputs from this source. They receive a mean Attention Score of 4.7. This one has gotten more attention than average, scoring higher than 55% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 314,574 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 50% of its contemporaries.
We're also able to compare this research output to 221 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 55% of its contemporaries.