↓ Skip to main content

The cnidarian Hydractinia echinata employs canonical and highly adapted histones to pack its DNA

Overview of attention for article published in Epigenetics & Chromatin, September 2016
Altmetric Badge

About this Attention Score

  • In the top 25% of all research outputs scored by Altmetric
  • Good Attention Score compared to outputs of the same age (75th percentile)

Mentioned by

13 tweeters


20 Dimensions

Readers on

41 Mendeley
You are seeing a free-to-access but limited selection of the activity Altmetric has collected about this research output. Click here to find out more.
The cnidarian Hydractinia echinata employs canonical and highly adapted histones to pack its DNA
Published in
Epigenetics & Chromatin, September 2016
DOI 10.1186/s13072-016-0085-1
Pubmed ID

Anna Török, Philipp H. Schiffer, Christine E. Schnitzler, Kris Ford, James C. Mullikin, Andreas D. Baxevanis, Antony Bacic, Uri Frank, Sebastian G. Gornik


Cnidarians are a group of early branching animals including corals, jellyfish and hydroids that are renowned for their high regenerative ability, growth plasticity and longevity. Because cnidarian genomes are conventional in terms of protein-coding genes, their remarkable features are likely a consequence of epigenetic regulation. To facilitate epigenetics research in cnidarians, we analysed the histone complement of the cnidarian model organism Hydractinia echinata using phylogenomics, proteomics, transcriptomics and mRNA in situ hybridisations. We find that the Hydractinia genome encodes 19 histones and analyse their spatial expression patterns, genomic loci and replication-dependency. Alongside core and other replication-independent histone variants, we find several histone replication-dependent variants, including a rare replication-dependent H3.3, a female germ cell-specific H2A.X and an unusual set of five H2B variants, four of which are male germ cell-specific. We further confirm the absence of protamines in Hydractinia. Since no protamines are found in hydroids, we suggest that the novel H2B variants are pivotal for sperm DNA packaging in this class of Cnidaria. This study adds to the limited number of full histone gene complements available in animals and sets a comprehensive framework for future studies on the role of histones and their post-translational modifications in cnidarian epigenetics. Finally, it provides insight into the evolution of spermatogenesis.

Twitter Demographics

The data shown below were collected from the profiles of 13 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 41 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Spain 1 2%
Unknown 40 98%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 12 29%
Student > Bachelor 8 20%
Student > Master 6 15%
Researcher 4 10%
Student > Doctoral Student 2 5%
Other 4 10%
Unknown 5 12%
Readers by discipline Count As %
Biochemistry, Genetics and Molecular Biology 16 39%
Agricultural and Biological Sciences 13 32%
Environmental Science 4 10%
Medicine and Dentistry 2 5%
Unspecified 1 2%
Other 0 0%
Unknown 5 12%

Attention Score in Context

This research output has an Altmetric Attention Score of 6. 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 13 September 2016.
All research outputs
of 16,530,799 outputs
Outputs from Epigenetics & Chromatin
of 474 outputs
Outputs of similar age
of 268,370 outputs
Outputs of similar age from Epigenetics & Chromatin
of 1 outputs
Altmetric has tracked 16,530,799 research outputs across all sources so far. Compared to these this one has done well and is in the 76th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 474 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 6.5. This one has gotten more attention than average, scoring higher than 66% 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 268,370 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 75% 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