2020
Comparative Genomics Underlines Multiple Roles of Profftella, an Obligate Symbiont of Psyllids: Providing Toxins, Vitamins, and Carotenoids.
NAKABACHI, Atsushi; Jörn PIEL; Igor MALENOVSKÝ a Yuu HIROSEZákladní údaje
Originální název
Comparative Genomics Underlines Multiple Roles of Profftella, an Obligate Symbiont of Psyllids: Providing Toxins, Vitamins, and Carotenoids.
Autoři
NAKABACHI, Atsushi; Jörn PIEL; Igor MALENOVSKÝ a Yuu HIROSE
Vydání
Genome biology and evolution, Oxford, Oxford University Press, 2020, 1759-6653
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10603 Genetics and heredity
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.416
Kód RIV
RIV/00216224:14310/20:00116989
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000599652700006
EID Scopus
2-s2.0-85095861702
Klíčová slova anglicky
Diaphorin; defensive symbiont; diaphorin; hemolysin; reduced genome; secondary metabolite
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 13. 1. 2021 14:51, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
The Asian citrus psyllid Diaphorina citri (Insecta: Hemiptera: Psylloidea), a serious pest of citrus species worldwide, harbors vertically transmitted intracellular mutualists, Candidatus Profftella armatura (Profftella_DC, Gammaproteobacteria: Burkholderiales) and Candidatus Carsonella ruddii (Carsonella_DC, Gammaproteobacteria: Oceanospirillales). Large parts of the 460-kb genome of Profftella_DC are devoted to genes for synthesizing a polyketide toxin; diaphorin. To better understand the evolution of this unusual symbiont, the present study analyzed the genome of Profftella_Dco, a sister lineage to Profftella_DC, using Diaphorina cf. continua, a host psyllid congeneric with D. citri. The genome of coresiding Carsonella (Carsonella_Dco) was also analyzed. The analysis revealed nearly perfect synteny conservation in these genomes with their counterparts from D. citri.The substitution rate analysis further demonstrated genomic stability of Profftella which is comparable to that of Carsonella. Profftella_Dco and Profftella_DC shared all genes for the biosynthesis of diaphorin, hemolysin, riboflavin, biotin, and carotenoids, underlining multiple roles of Profftella, which may contribute to stabilizing symbiotic relationships with the host. However, acyl carrier proteins were extensively amplified in polyketide synthases DipP and DipT for diaphorin synthesis in Profftella_Dco. This level of acyl carrier protein augmentation, unprecedented in modular polyketide synthases of any known organism, is not thought to influence the polyketide structure but may improve the synthesis efficiency.