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Nature communications v.9 no.1, 2018년, pp.2177 - 2177   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Spatial self-organization resolves conflicts between individuality and collective migration

Fu, X.    (Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, CT, 06520, USA   ); Kato, S.    (Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China   ); Long, J.    (Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, CT, 06520, USA   ); Mattingly, H. H.    (Department of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima University, Higashi-Hiroshima, Hiroshima, 739-8530, Japan   ); He, C.    (Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, CT, 06520, USA   ); Vural, D. C.    (Department of Physics, Yale University, New Haven, CT, 06520, USA   ); Zucker, S. W.    (Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, CT, 06520, USA   ); Emonet, T.    (Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China   );
  • 초록  

    Collective behavior can spontaneously emerge when individuals follow common rules of interaction. However, the behavior of each individual differs due to existing genetic and non-genetic variation within the population. It remains unclear how this individuality is managed to achieve collective behavior. We quantify individuality in bands of clonal Escherichia coli cells that migrate collectively along a channel by following a self-generated gradient of attractant. We discover that despite substantial differences in individual chemotactic abilities, the cells are able to migrate as a coherent group by spontaneously sorting themselves within the moving band. This sorting mechanism ensures that differences between individual chemotactic abilities are compensated by differences in the local steepness of the traveling gradient each individual must navigate, and determines the minimum performance required to travel with the band. By resolving conflicts between individuality and collective migration, this mechanism enables populations to maintain advantageous diversity while on the move.


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