Host-symbiont co-speciation and reductive genome evolution in gut symbiotic bacteria of acanthosomatid stinkbugs.

BMC Biology
Yoshitomo KikuchiTakema Fukatsu

Abstract

Host-symbiont co-speciation and reductive genome evolution have been commonly observed among obligate endocellular insect symbionts, while such examples have rarely been identified among extracellular ones, the only case reported being from gut symbiotic bacteria of stinkbugs of the family Plataspidae. Considering that gut symbiotic communities are vulnerable to invasion of foreign microbes, gut symbiotic associations have been thought to be evolutionarily not stable. Stinkbugs of the family Acanthosomatidae harbor a bacterial symbiont in the midgut crypts, the lumen of which is completely sealed off from the midgut main tract, thereby retaining the symbiont in the isolated cryptic cavities. We investigated histological, ecological, phylogenetic, and genomic aspects of the unique gut symbiosis of the acanthosomatid stinkbugs. Phylogenetic analyses showed that the acanthosomatid symbionts constitute a distinct clade in the gamma-Proteobacteria, whose sister groups are the obligate endocellular symbionts of aphids Buchnera and the obligate gut symbionts of plataspid stinkbugs Ishikawaella. In addition to the midgut crypts, the symbionts were located in a pair of peculiar lubricating organs associated with the female ovipositor, b...Continue Reading

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Citations

May 11, 2011·Microbial Ecology·Hauke Koch, Paul Schmid-Hempel
Aug 5, 2011·The ISME Journal·Yu MatsuuraTakema Fukatsu
Jul 9, 2011·Genome Biology and Evolution·Naruo NikohTakema Fukatsu
Nov 20, 2009·Molecular Biology and Evolution·Dean M Castillo, Teresa E Pawlowska
May 3, 2011·Molecular Biology and Evolution·Haiwei LuoAustin L Hughes
May 3, 2011·Applied and Environmental Microbiology·Yoshitomo KikuchiTakema Fukatsu
Apr 20, 2010·Applied and Environmental Microbiology·Nahomi KaiwaTakema Fukatsu
May 11, 2010·Applied and Environmental Microbiology·Takahiro HosokawaTakema Fukatsu
Apr 17, 2012·Applied and Environmental Microbiology·Yu MatsuuraTakema Fukatsu
May 1, 2012·Applied and Environmental Microbiology·Takahiro HosokawaTakema Fukatsu
Jun 12, 2012·BMC Microbiology·Tiago D ZucchiFernando L Cônsoli
Jan 1, 2009·Microbes and Environments·Yoshitomo Kikuchi
Jun 7, 2013·PloS One·Takahiro HosokawaTakema Fukatsu
Oct 21, 2011·The Journal of Parasitology·James W DemastesJessica E Light
Dec 14, 2012·World Journal of Gastroenterology : WJG·Quan-Jiang DongShi-Ying Xuan
Apr 16, 2014·Proceedings of the National Academy of Sciences of the United States of America·Martin KaltenpothErhard Strohm
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Sep 2, 2015·Proceedings of the National Academy of Sciences of the United States of America·Tsubasa OhbayashiYoshitomo Kikuchi
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Methods Mentioned

BETA
PCR
genotyping
electron microscopy
electrophoresis

Software Mentioned

PAUP
CLUSTAL W
MrBayes
TREE
- PUZZLE5
MrModeltest
R
Modeltest
TreeMap
TreeFitter

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