Comparative Genomics Underlines Multiple Roles of Profftella, an Obligate Symbiont of Psyllids: Providing Toxins, Vitamins, and Carotenoids.
Comparative Genomics Underlines Multiple Roles of Profftella, an Obligate Symbiont of Psyllids: Providing Toxins, Vitamins, and Carotenoids.
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DOI:
10.1093/gbe/evaa175
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发表时间:
2020-11-03
影响因子:
3.3
通讯作者:
Hirose Y
中科院分区:
文献类型:
--
作者:
Nakabachi A;Piel J;Malenovský I;Hirose Y
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). Whereas Carsonella_DC is a typical nutritional symbiont, Profftella_DC is a unique defensive symbiont with organelle-like features, including intracellular localization within the host, perfect infection in host populations, vertical transmission over evolutionary time, and drastic genome reduction down to much less than 1 Mb. 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.
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DOI:
10.1002/anie.201005280
发表时间:
2011-03-14
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
作者:
Gu L;Eisman EB;Dutta S;Franzmann TM;Walter S;Gerwick WH;Skiniotis G;Sherman DH
通讯作者:
Sherman DH
影响因子:
10.7
作者:
Huerta-Cepas J;Forslund K;Coelho LP;Szklarczyk D;Jensen LJ;von Mering C;Bork P
通讯作者:
Bork P
DOI:
10.1073/pnas.1421386112
发表时间:
2015-08-18
影响因子:
11.1
作者:
Campbell, Matthew A.;Van Leuven, James T.;McCutcheon, John P.
通讯作者:
McCutcheon, John P.
影响因子:
3.3
作者:
Bennett GM;Moran NA
通讯作者:
Moran NA
影响因子:
3.7
作者:
Dan H;Ikeda N;Fujikami M;Nakabachi A
通讯作者:
Nakabachi A