2018
Viral discovery and diversity in trypanosomatid protozoa with a focus on relatives of the human parasite Leishmania
GRYBCHUK, D.; N.S. AKOPYANTS; A.Y. KOSTYGOV; A. KONOVALOVAS; L.F. LYE et al.Základní údaje
Originální název
Viral discovery and diversity in trypanosomatid protozoa with a focus on relatives of the human parasite Leishmania
Autoři
GRYBCHUK, D.; N.S. AKOPYANTS; A.Y. KOSTYGOV; A. KONOVALOVAS; L.F. LYE; D.E. DOBSON; H. ZANGGER; N. FASEL; A. BUTENKO; A.O. FROLOV; J. VOTYPKA; C.M. DAVILA-LEVY; P. KULICH; Jana MORAVCOVÁ; Pavel PLEVKA; I.B. ROGOZIN; S. SERVA; J. LUKES; S.M. BEVERLEY a V. YURCHENKO
Vydání
Proceedings of the National Academy of Sciences of the United States of America, WASHINGTON, NATL ACAD SCIENCES, 2018, 0027-8424
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10607 Virology
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 9.580
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14740/18:00106594
Organizační jednotka
Středoevropský technologický institut
UT WoS
EID Scopus
Klíčová slova anglicky
Trypanosomatidae; Bunyavirales; persistent virus infection; coinfection; coevolution
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 13. 3. 2019 11:04, Mgr. Pavla Foltynová, Ph.D.
Anotace
V originále
Knowledge of viral diversity is expanding greatly, but many lineages remain underexplored. We surveyed RNA viruses in 52 cultured monoxenous relatives of the human parasite Leishmania (Crithidia and Leptomonas), as well as plant-infecting Phytomonas. Leptomonas pyrrhocoris was a hotbed for viral discovery, carrying a virus (Leptomonas pyrrhocoris ostravirus 1) with a highly divergent RNA-dependent RNA polymerase missed by conventional BLAST searches, an emergent clade of tombus-like viruses, and an example of viral endogenization. A deep-branching clade of trypanosomatid narnaviruses was found, notable as Leptomonas seymouri bearing Narna-like virus 1 (LepseyNLV1) have been reported in cultures recovered from patients with visceral leishmaniasis. A deep-branching trypanosomatid viral lineage showing strong affinities to bunyaviruses was termed "Leishbunyavirus" (LBV) and judged sufficiently distinct to warrant assignment within a proposed family termed "Leishbunyaviridae." Numerous relatives of trypanosomatid viruses were found in insect metatranscriptomic surveys, which likely arise from trypanosomatid microbiota. Despite extensive sampling we found no relatives of the totivirus Leishmaniavirus (LRV1/2), implying that it was acquired at about the same time the Leishmania became able to parasitize vertebrates. As viruses were found in over a quarter of isolates tested, many more are likely to be found in the >600 unsurveyed trypanosomatid species. Viral loss was occasionally observed in culture, providing potentially isogenic virus-free lines enabling studies probing the biological role of trypanosomatid viruses. These data shed important insights on the emergence of viruses within an important trypanosomatid clade relevant to human disease.