| Title |
Cryptosporidium is more closely related to the gregarines than to coccidia as shown by phylogenetic analysis of apicomplexan parasites inferred using small-subunit ribosomal RNA gene sequences
|
|---|---|
| Published in |
Parasitology Research, September 1999
|
| DOI | 10.1007/s004360050655 |
| Pubmed ID | |
| Authors |
Ramon A. Carreno, Donald S. Matrin, John R. Barta |
| Abstract |
The phylogenetic placement of gregarine parasites (Apicomplexa: Gregarinasina) within the Apicomplexa was derived by comparison of small-subunit ribosomal RNA gene sequences. Gregarine sequences were obtained from Gregarina niphandrodes Clopton, Percival, and Janovy, 1991, and Monocystis agilis Stein, 1848 (Eugregarinorida Léger 1900), as well as from Ophriocystis elektroscirrha McLaughlin and Myers, 1970 (Neogregarinorida Grassé 1953). The sequences were aligned with several other gregarine and apicomplexan sequences from GenBank and the resulting data matrix analyzed by parsimony and maximum-likelihood methods. The gregarines form a monophyletic clade that is a sister group to Cryptosporidium spp. The gregarine/ Cryptosporidium clade is separate from the other major apicomplexan clade containing the coccidia, adeleids, piroplasms, and haemosporinids. The trees indicate that the genus Cryptosporidium has a closer phylogenetic affinity with the gregarines than with the coccidia. These results do not support the present classification of the Cryptosporidiidae in the suborder Eimerioirina Léger, 1911. |
Mendeley readers
The data shown below were compiled from readership statistics for 125 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 3 | 2% |
| Portugal | 1 | <1% |
| Hungary | 1 | <1% |
| Estonia | 1 | <1% |
| Argentina | 1 | <1% |
| Unknown | 118 | 94% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 26 | 21% |
| Student > Bachelor | 23 | 18% |
| Researcher | 19 | 15% |
| Student > Master | 13 | 10% |
| Student > Doctoral Student | 8 | 6% |
| Other | 15 | 12% |
| Unknown | 21 | 17% |
| Readers by discipline | Count | As % |
|---|---|---|
| Agricultural and Biological Sciences | 52 | 42% |
| Biochemistry, Genetics and Molecular Biology | 13 | 10% |
| Veterinary Science and Veterinary Medicine | 12 | 10% |
| Medicine and Dentistry | 7 | 6% |
| Immunology and Microbiology | 6 | 5% |
| Other | 9 | 7% |
| Unknown | 26 | 21% |
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 24 June 2020.
All research outputs
#8,535,684
of 25,374,917 outputs
Outputs from Parasitology Research
#737
of 4,164 outputs
Outputs of similar age
#11,515
of 35,130 outputs
Outputs of similar age from Parasitology Research
#2
of 4 outputs
Altmetric has tracked 25,374,917 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 4,164 research outputs from this source. They receive a mean Attention Score of 3.0. This one has gotten more attention than average, scoring higher than 64% of its peers.
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