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Microbiome reduction and endosymbiont gain from a switch in sea urchin life history.
Carrier, Tyler J; Leigh, Brittany A; Deaker, Dione J; Devens, Hannah R; Wray, Gregory A; Bordenstein, Seth R; Byrne, Maria; Reitzel, Adam M.
Afiliação
  • Carrier TJ; Department of Biological Sciences, University of North Carolina at Charlotte, Charlotte, NC 28223; tcarrier@geomar.de.
  • Leigh BA; Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235.
  • Deaker DJ; Vanderbilt Microbiome Initiative, Vanderbilt University, Nashville, TN 37235.
  • Devens HR; School of Life and Environmental Sciences, The University of Sydney, Camperdown NSW 2006, Australia.
  • Wray GA; Department of Biology, Duke University, Durham, NC 27708.
  • Bordenstein SR; Department of Biology, Duke University, Durham, NC 27708.
  • Byrne M; Center for Genomic and Computational Biology, Duke University, Durham, NC 27705.
  • Reitzel AM; Department of Biological Sciences, Vanderbilt University, Nashville, TN 37235.
Proc Natl Acad Sci U S A ; 118(16)2021 04 20.
Article em En | MEDLINE | ID: mdl-33853946
Animal gastrointestinal tracts harbor a microbiome that is integral to host function, yet species from diverse phyla have evolved a reduced digestive system or lost it completely. Whether such changes are associated with alterations in the diversity and/or abundance of the microbiome remains an untested hypothesis in evolutionary symbiosis. Here, using the life history transition from planktotrophy (feeding) to lecithotrophy (nonfeeding) in the sea urchin Heliocidaris, we demonstrate that the lack of a functional gut corresponds with a reduction in microbial community diversity and abundance as well as the association with a diet-specific microbiome. We also determine that the lecithotroph vertically transmits a Rickettsiales that may complement host nutrition through amino acid biosynthesis and influence host reproduction. Our results indicate that the evolutionary loss of a functional gut correlates with a reduction in the microbiome and the association with an endosymbiont. Symbiotic transitions can therefore accompany life history transitions in the evolution of developmental strategies.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Ouriços-do-Mar / Simbiose / Trato Gastrointestinal Limite: Animals Idioma: En Revista: Proc Natl Acad Sci U S A Ano de publicação: 2021 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Ouriços-do-Mar / Simbiose / Trato Gastrointestinal Limite: Animals Idioma: En Revista: Proc Natl Acad Sci U S A Ano de publicação: 2021 Tipo de documento: Article