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DNA polymorphism and selection at the bindin locus in three Strongylocentrotus sp. (Echinoidea)

Overview of attention for article published in BMC Genetics, May 2016
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  • Above-average Attention Score compared to outputs of the same age (53rd percentile)

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4 tweeters

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Title
DNA polymorphism and selection at the bindin locus in three Strongylocentrotus sp. (Echinoidea)
Published in
BMC Genetics, May 2016
DOI 10.1186/s12863-016-0374-5
Pubmed ID
Authors

Evgeniy S. Balakirev, Maria Anisimova, Vladimir A. Pavlyuchkov, Francisco J. Ayala

Abstract

The sperm gene bindin encodes a gamete recognition protein, which plays an important role in conspecific fertilization and reproductive isolation of sea urchins. Molecular evolution of the gene has been extensively investigated with the attention focused on the protein coding regions. Intron evolution has been investigated to a much lesser extent. We have studied nucleotide variability in the complete bindin locus, including two exons and one intron, in the sea urchin Strongylocentrotus intermedius represented by two morphological forms. We have also analyzed all available bindin sequences for two other sea urchin species, S. pallidus and S. droebachiensis. The results show that the bindin sequences from the two forms of S. intermedius are intermingled with no evidence of genetic divergence; however, the forms exhibit slightly different patterns in bindin variability. The level of the bindin nucleotide diversity is close for S. intermedius and S. droebachiensis, but noticeably higher for S. pallidus. The distribution of variability is non-uniform along the gene; however there are striking similarities among the species, indicating similar evolutionary trends in this gene engaged in reproductive function. The patterns of nucleotide variability and divergence are radically different in the bindin coding and intron regions. Positive selection is detected in the bindin coding region. The neutrality tests as well as the maximum likelihood approaches suggest the action of diversifying selection in the bindin intron. Significant deviation from neutrality has been detected in the bindin coding region and suggested in the intron, indicating the possible functional importance of the bindin intron variability. To clarify the question concerning possible involvement of diversifying selection in the bindin intron evolution more data combining population genetic and functional approaches are necessary.

Twitter Demographics

The data shown below were collected from the profiles of 4 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 12 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Spain 1 8%
United States 1 8%
Russia 1 8%
Unknown 9 75%

Demographic breakdown

Readers by professional status Count As %
Librarian 2 17%
Researcher 2 17%
Professor 2 17%
Student > Doctoral Student 1 8%
Student > Ph. D. Student 1 8%
Other 2 17%
Unknown 2 17%
Readers by discipline Count As %
Biochemistry, Genetics and Molecular Biology 4 33%
Agricultural and Biological Sciences 4 33%
Computer Science 1 8%
Social Sciences 1 8%
Unknown 2 17%

Attention Score in Context

This research output has an Altmetric Attention Score of 2. 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 22 September 2017.
All research outputs
#7,755,545
of 13,784,591 outputs
Outputs from BMC Genetics
#361
of 895 outputs
Outputs of similar age
#116,916
of 263,145 outputs
Outputs of similar age from BMC Genetics
#1
of 1 outputs
Altmetric has tracked 13,784,591 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 895 research outputs from this source. They receive a mean Attention Score of 3.5. This one has gotten more attention than average, scoring higher than 57% 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 263,145 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 53% of its contemporaries.
We're also able to compare this research output to 1 others from the same source and published within six weeks on either side of this one. This one has scored higher than all of them