Host–Symbiont Specificity Determined by Microbe–Microbe Competition in an Insect
Host–symbiont specificity determined by microbe– microbe competition in an insect gut Hideomi Itoha,1, Seonghan Jangb,1, Kazutaka Takeshitac, Tsubasa Ohbayashid, Naomi Ohnishie,2, Xian-Ying Mengf, Yasuo Mitania, and Yoshitomo Kikuchia,b,g,3 aBioproduction Research Institute, National Institute of Advanced Industrial Science and Technology, Hokkaido Center, 062-8517 Sapporo, Japan; bGraduate School of Agriculture, Hokkaido University, 060-8589 Sapporo, Japan; cFaculty of Bioresource Sciences, Akita Prefectural University, 010-0195 Akita, Japan; dInstitute for Integrative Biology of the Cell, UMR 9198, CNRS, Commissariat à l’Energie Atomique et aux Énergies Alternatives (CEA), Université Paris-Sud, 91198 Gif-sur-Yvette, France; eResearch Center for Zoonosis Control, Hokkaido University, 001-0020 Sapporo, Japan; fBioproduction Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba Center, 305-8566 Tsukuba, Japan; and gComputational Bio Big Data Open Innovation Laboratory, National Institute of Advanced Industrial Science and Technology, 062-8517 Sapporo, Japan Edited by Joan E. Strassmann, Washington University in St. Louis, St. Louis, MO, and approved September 30, 2019 (received for review July 18, 2019) Despite the omnipresence of specific host–symbiont associations microbe competition on the evolution and stabilization of host– with acquisition of the microbial symbiont from the environment, symbiont specificity is very scarce. little is known about how the specificity of the interaction evolved The bean bug Riptortus pedestris (Heteroptera: Alydidae) is and is maintained. The bean bug Riptortus pedestris acquires a associated with a Burkholderia symbiont that is confined in specific bacterial symbiont of the genus Burkholderia from environ- symbiosis-specific crypts located in the posterior midgut region Burkholderia mental soil and harbors it in midgut crypts.
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