{"entity": "researcher", "timestamp": "2026-07-20T12:54:27.789Z", "family": "Andersson", "given": "Jan O", "initials": "JO", "orcid": "0000-0002-3075-4896", "affiliations": ["Department of Cell and Molecular Biology, BMC, Box 596, Uppsala Universitet, SE-751 24 Uppsala, Sweden"], "links": {"self": {"href": "https://publications.scilifelab.se/researcher/489ed7f61a7b49a3a7ebd9ee3c391f5b.json"}, "display": {"href": "https://publications.scilifelab.se/researcher/489ed7f61a7b49a3a7ebd9ee3c391f5b"}}, "publications": [{"entity": "publication", "iuid": "97a9599da59641ebb05e5b7a8fe6ad45", "links": {"self": {"href": "https://publications.scilifelab.se/publication/97a9599da59641ebb05e5b7a8fe6ad45.json"}, "display": {"href": "https://publications.scilifelab.se/publication/97a9599da59641ebb05e5b7a8fe6ad45"}}, "title": "The expanded genome of Hexamita inflata, a free-living diplomonad.", "authors": [{"family": "Akdeniz", "given": "Zeynep", "initials": "Z", "orcid": "0000-0002-5279-6077", "researcher": {"href": "https://publications.scilifelab.se/researcher/7b6a7222e2d3487db2b50842f74e173e.json"}}, {"family": "Havelka", "given": "Michal", "initials": "M"}, {"family": "Stoklasa", "given": "Michal", "initials": "M"}, {"family": "Jim\u00e9nez-Gonz\u00e1lez", "given": "Alejandro", "initials": "A", "orcid": "0000-0003-3493-4154", "researcher": {"href": "https://publications.scilifelab.se/researcher/f9c6b93b731741018637733969c308a6.json"}}, {"family": "\u017d\u00e1rsk\u00fd", "given": "Vojt\u011bch", "initials": "V"}, {"family": "Xu", "given": "Feifei", "initials": "F", "orcid": "0000-0003-1946-1520", "researcher": {"href": "https://publications.scilifelab.se/researcher/84c51ec60768479f851e29ebc804f547.json"}}, {"family": "Stairs", "given": "Courtney W", "initials": "CW", "orcid": "0000-0001-6650-0970", "researcher": {"href": "https://publications.scilifelab.se/researcher/618e83e896494c7bb6cbe06350baf0a5.json"}}, {"family": "Jerlstr\u00f6m-Hultqvist", "given": "Jon", "initials": "J", "orcid": "0000-0002-7992-7970", "researcher": {"href": "https://publications.scilifelab.se/researcher/622d380bca244d738f5551cbed742b3e.json"}}, {"family": "Kol\u00edsko", "given": "Martin", "initials": "M"}, {"family": "Provazn\u00edk", "given": "Jan", "initials": "J"}, {"family": "Sv\u00e4rd", "given": "Staffan", "initials": "S", "orcid": "0000-0002-7392-1746", "researcher": {"href": "https://publications.scilifelab.se/researcher/b01942d70ef84a1db3aaccab65af9c57.json"}}, {"family": "Andersson", "given": "Jan O", "initials": "JO", "orcid": "0000-0002-3075-4896", "researcher": {"href": "https://publications.scilifelab.se/researcher/489ed7f61a7b49a3a7ebd9ee3c391f5b.json"}}, {"family": "Tachezy", "given": "Jan", "initials": "J"}], "type": "journal article", "published": "2025-02-01", "journal": {"title": "Sci Data", "issn": "2052-4463", "volume": "12", "issue": "1", "pages": "192", "issn-l": "2052-4463"}, "abstract": "Diplomonads are anaerobic, flagellated protists, being part of the Metamonada group of Eukaryotes. Diplomonads either live as endobionts (parasites and commensals) of animals or free-living in low-oxygen environments. Genomic information is available for parasitic diplomonads like Giardia intestinalis and Spironucleus salmonicida, while little is known about the genomic arrangements of free-living diplomonads. We have generated the first reference genome of a free-living diplomonad, Hexamita inflata. The final version of the genome assembly is fragmented (1241 contigs) but substantially larger (142 Mbp) than the parasitic diplomonad genomes (9.8-14.7 Mbp). It encodes 79,341 proteins; 29,874 have functional annotations and 49,467 are hypothetical proteins. Interspersed repeats comprise 34% of the genome (9617 Retroelements, 2676 DNA transposons). The large expansion of protein-encoding capacity and the interspersed repeats are the major reasons for the large genome size. This genome from a free-living diplomonad will be the basis for further studies of the Diplomonadida lineage and the evolution of parasitism-free living style transitions.", "doi": "10.1038/s41597-025-04514-x", "pmid": "39893204", "labels": {"NGI Uppsala (Uppsala Genome Center)": "Service", "NGI Long read": "Service", "National Genomics Infrastructure": "Service"}, "xrefs": [{"db": "pmc", "key": "PMC11787283"}, {"db": "pii", "key": "10.1038/s41597-025-04514-x"}], "notes": [], "created": "2025-03-07T09:59:16.550Z", "modified": "2025-04-03T08:27:54.918Z"}, {"entity": "publication", "iuid": "8a75948c51be42018169ce7fe05133b1", "links": {"self": {"href": "https://publications.scilifelab.se/publication/8a75948c51be42018169ce7fe05133b1.json"}, "display": {"href": "https://publications.scilifelab.se/publication/8a75948c51be42018169ce7fe05133b1"}}, "title": "A chromosome-scale reference genome for Spironucleus salmonicida.", "authors": [{"family": "Xu", "given": "Feifei", "initials": "F", "orcid": "0000-0003-1946-1520", "researcher": {"href": "https://publications.scilifelab.se/researcher/84c51ec60768479f851e29ebc804f547.json"}}, {"family": "Jim\u00e9nez-Gonz\u00e1lez", "given": "Alejandro", "initials": "A", "orcid": "0000-0003-3493-4154", "researcher": {"href": "https://publications.scilifelab.se/researcher/f9c6b93b731741018637733969c308a6.json"}}, {"family": "Kurt", "given": "Zeynep", "initials": "Z"}, {"family": "\u00c1stvaldsson", "given": "\u00c1sgeir", "initials": "\u00c1", "orcid": "0000-0002-0320-6974", "researcher": {"href": "https://publications.scilifelab.se/researcher/2a3d973dc6d246b48426d2063eef8934.json"}}, {"family": "Andersson", "given": "Jan O", "initials": "JO", "orcid": "0000-0002-3075-4896", "researcher": {"href": "https://publications.scilifelab.se/researcher/489ed7f61a7b49a3a7ebd9ee3c391f5b.json"}}, {"family": "Sv\u00e4rd", "given": "Staffan G", "initials": "SG"}], "type": "dataset", "published": "2022-09-24", "journal": {"title": "Sci Data", "issn": "2052-4463", "volume": "9", "issue": "1", "pages": "585", "issn-l": "2052-4463"}, "abstract": "Spironucleus salmonicida is a diplomonad causing systemic infection in salmon. The first S. salmonicida genome assembly was published 2014 and has been a valuable reference genome in protist research. However, the genome assembly is fragmented without assignment of the sequences to chromosomes. In our previous Giardia genome study, we have shown how a fragmented genome assembly can be improved with long-read sequencing technology complemented with optical maps. Combining Pacbio long-read sequencing technology and optical maps, we are presenting here this new S. salmonicida genome assembly in nine near-complete chromosomes with only three internal gaps at long repeats. This new genome assembly is not only more complete sequence-wise but also more complete at annotation level, providing more details into gene families, gene organizations and chromosomal structure. This near-complete reference genome will aid comparative genomics at chromosomal level, and serve as a valuable resource for the diplomonad community and protist research.", "doi": "10.1038/s41597-022-01703-w", "pmid": "36153341", "labels": {"NGI Long read": "Service", "NGI Uppsala (Uppsala Genome Center)": "Service", "National Genomics Infrastructure": "Service"}, "xrefs": [{"db": "pmc", "key": "PMC9509377"}, {"db": "pii", "key": "10.1038/s41597-022-01703-w"}], "notes": [], "created": "2022-11-28T10:42:49.061Z", "modified": "2022-11-28T10:42:49.118Z"}, {"entity": "publication", "iuid": "ba8e61b15fdf4091b7ee12bca3608e26", "links": {"self": {"href": "https://publications.scilifelab.se/publication/ba8e61b15fdf4091b7ee12bca3608e26.json"}, "display": {"href": "https://publications.scilifelab.se/publication/ba8e61b15fdf4091b7ee12bca3608e26"}}, "title": "The compact genome of Giardia muris reveals important steps in the evolution of intestinal protozoan parasites.", "authors": [{"family": "Xu", "given": "Feifei", "initials": "F", "orcid": "0000-0003-1946-1520", "researcher": {"href": "https://publications.scilifelab.se/researcher/84c51ec60768479f851e29ebc804f547.json"}}, {"family": "Jim\u00e9nez-Gonz\u00e1lez", "given": "Alejandro", "initials": "A", "orcid": "0000-0003-3493-4154", "researcher": {"href": "https://publications.scilifelab.se/researcher/f9c6b93b731741018637733969c308a6.json"}}, {"family": "Einarsson", "given": "Elin", "initials": "E", "orcid": "0000-0002-1242-5263", "researcher": {"href": "https://publications.scilifelab.se/researcher/be89fa4c7f9d484c858a0bf385f06c61.json"}}, {"family": "\u00c1stvaldsson", "given": "\u00c1sgeir", "initials": "\u00c1", "orcid": "0000-0002-0320-6974", "researcher": {"href": "https://publications.scilifelab.se/researcher/2a3d973dc6d246b48426d2063eef8934.json"}}, {"family": "Peirasmaki", "given": "Dimitra", "initials": "D", "orcid": "0000-0001-5376-626X", "researcher": {"href": "https://publications.scilifelab.se/researcher/94231cbd0cab4644b42c3fab58cea9aa.json"}}, {"family": "Eckmann", "given": "Lars", "initials": "L"}, {"family": "Andersson", "given": "Jan O", "initials": "JO", "orcid": "0000-0002-3075-4896", "researcher": {"href": "https://publications.scilifelab.se/researcher/489ed7f61a7b49a3a7ebd9ee3c391f5b.json"}}, {"family": "Sv\u00e4rd", "given": "Staffan G", "initials": "SG", "orcid": "0000-0002-7392-1746", "researcher": {"href": "https://publications.scilifelab.se/researcher/b01942d70ef84a1db3aaccab65af9c57.json"}}, {"family": "Jerlstr\u00f6m-Hultqvist", "given": "Jon", "initials": "J", "orcid": "0000-0002-7992-7970", "researcher": {"href": "https://publications.scilifelab.se/researcher/622d380bca244d738f5551cbed742b3e.json"}}], "type": "journal article", "published": "2020-08-00", "journal": {"title": "Microb Genom", "issn": "2057-5858", "volume": "6", "issue": "8", "issn-l": null}, "abstract": "Diplomonad parasites of the genus Giardia have adapted to colonizing different hosts, most notably the intestinal tract of mammals. The human-pathogenic Giardia species, Giardia intestinalis, has been extensively studied at the genome and gene expression level, but no such information is available for other Giardia species. Comparative data would be particularly valuable for Giardia muris, which colonizes mice and is commonly used as a prototypic in vivo model for investigating host responses to intestinal parasitic infection. Here we report the draft-genome of G. muris. We discovered a highly streamlined genome, amongst the most densely encoded ever described for a nuclear eukaryotic genome. G. muris and G. intestinalis share many known or predicted virulence factors, including cysteine proteases and a large repertoire of cysteine-rich surface proteins involved in antigenic variation. Different to G. intestinalis, G. muris maintains tandem arrays of pseudogenized surface antigens at the telomeres, whereas intact surface antigens are present centrally in the chromosomes. The two classes of surface antigens engage in genetic exchange. Reconstruction of metabolic pathways from the G. muris genome suggest significant metabolic differences to G. intestinalis. Additionally, G. muris encodes proteins that might be used to modulate the prokaryotic microbiota. The responsible genes have been introduced in the Giardia genus via lateral gene transfer from prokaryotic sources. Our findings point to important evolutionary steps in the Giardia genus as it adapted to different hosts and it provides a powerful foundation for mechanistic exploration of host-pathogen interaction in the G. muris-mouse pathosystem.", "doi": "10.1099/mgen.0.000402", "pmid": "32618561", "labels": {"NGI Stockholm (Genomics Applications)": "Service", "National Genomics Infrastructure": "Service", "NGI Stockholm (Genomics Production)": "Service"}, "xrefs": [{"db": "pmc", "key": "PMC7641422"}], "notes": [], "created": "2021-01-08T16:29:45.383Z", "modified": "2021-11-10T12:48:32.906Z"}]}