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Phylogenetic Position of Mammoth and Steller's Sea Cow Within Tethytheria Demonstrated by Mitochondrial DNA Sequences

Overview of attention for article published in Journal of Molecular Evolution, April 1997
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Title
Phylogenetic Position of Mammoth and Steller's Sea Cow Within Tethytheria Demonstrated by Mitochondrial DNA Sequences
Published in
Journal of Molecular Evolution, April 1997
DOI 10.1007/pl00006160
Pubmed ID
Authors

Tomowo Ozawa, Seiji Hayashi, Victor M. Mikhelson

Abstract

Here we report DNA sequences from mitochondrial cytochrome b gene segments (1,005 base pairs per species) for the extinct woolly mammoth (Mammuthus primigenius) and Steller's sea cow (Hydrodamalis gigas) and the extant Asian elephant (Elephas maximus), the Western Indian manatee (Trichechus manatus), and the hyrax (Procavia capensis). These molecular data have allowed us to construct the phylogeny for the Tethytheria. Our molecular data resolve the trichotomy between the two species of living elephants and the mammoth and confirm that the mammoth was more closely related to the Asian elephant than to the African elephant. Our data also suggest that the sea cow-dugong divergence was likely as ancient as the dugong-manatee split, and it appears to have been much earlier (22 million years ago) than had been previously estimated (4-8 million years ago) by immunological comparison.

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Mendeley readers

The data shown below were compiled from readership statistics for 107 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Brazil 4 4%
Mexico 2 2%
Italy 1 <1%
France 1 <1%
India 1 <1%
United States 1 <1%
Unknown 97 91%

Demographic breakdown

Readers by professional status Count As %
Researcher 30 28%
Student > Ph. D. Student 17 16%
Student > Bachelor 16 15%
Student > Master 12 11%
Professor 9 8%
Other 14 13%
Unknown 9 8%
Readers by discipline Count As %
Agricultural and Biological Sciences 65 61%
Biochemistry, Genetics and Molecular Biology 11 10%
Environmental Science 7 7%
Earth and Planetary Sciences 5 5%
Social Sciences 3 3%
Other 7 7%
Unknown 9 8%
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 06 July 2020.
All research outputs
#8,534,528
of 25,373,627 outputs
Outputs from Journal of Molecular Evolution
#492
of 1,477 outputs
Outputs of similar age
#9,710
of 29,826 outputs
Outputs of similar age from Journal of Molecular Evolution
#10
of 17 outputs
Altmetric has tracked 25,373,627 research outputs across all sources so far. This one is in the 43rd percentile – i.e., 43% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,477 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 5.9. This one is in the 29th percentile – i.e., 29% of its peers scored the same or lower than it.
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 29,826 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 8th percentile – i.e., 8% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 17 others from the same source and published within six weeks on either side of this one. This one is in the 5th percentile – i.e., 5% of its contemporaries scored the same or lower than it.