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Title: Genome analysis of new Blattabacterium spp., obligatory endosymbionts of Periplaneta fuliginosa and P. japonica
Authors: Vicente, Claudia
Mondal, Shakhinur Islam
Akter, Arzuba
Ozawa, Sota
Kikuchi, Tasei
Hasegawa, Koichi
Keywords: Periplaneta fuliginosa
Periplaneta japonica
Issue Date: Jul-2018
Publisher: PLoS ONE
Citation: Vicente CSL, Mondal SI, Akter A, Ozawa S, Kikuchi T, Hasegawa K (2018) Genome analysis of new Blattabacterium spp., obligatory endosymbionts of Periplaneta fuliginosa and P. japonica. PLoS ONE 13(7): e0200512. https://doi. org/10.1371/journal.pone.0200512
Abstract: The successful adaptation of cockroaches is, in part, dependent of the activity of their oblig- atory endosymbionts, Blattabacterium spp., which are involved in uric acid degradation, nitrogen assimilation and nutrient provisioning. Their strategic localization, within bacterio- cytes in the proximities of uric acid storage cells (urocytes), highlights their importance in the recycling of nitrogen from urea and ammonia, end-products not secreted by their host insects. In this study, we present the complete genome sequence of two new Blattabacter- ium spp. from Periplaneta fuliginosa (BPfu) and P. japonica (BPja), and detailed comparison with other Blattabacterium strains from different cockroach species. The genomes of BPfu and BPja show a high degree of stability as showed with for other Blattabacterium represen- tatives, only presenting a 19-kb fragment inversion between BPja and BPfu. In fact, the phy- logenomics showed BPja as an ancestor species of BPfu, BPLAN (P. americana) and BBor (Blatta orientalis), in congruence with their host cockroach phylogeny. Their functional pro- file is similar and closest to the omnivorous strain BBge (Blattella germanica). Interesting, BPja possesses the complete set of enzymes involved sulfate assimilatory pathway only found in BBge and BMda (Mastotermes darwiniensis). The newly sequenced genomes of BPja and BPfu emphasise the remarkable stability of Blattabacterium genomes supported by their long-term coevolution and obligatory lifestyle in their host insect.
Type: article
Appears in Collections:MED - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica

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