The Evolution of Aggregative Multicellularity and Cell-Cell Communication in the Dictyostelia.
作者： Qingyou Du , Yoshinori Kawabe , Christina Schilde , Zhi-hui Chen , Pauline Schaap
DOI: 10.1016/J.JMB.2015.08.008
关键词: Ecology 、 Dictyostelium 、 Cell signaling 、 Dictyostelium discoideum 、 Biology 、 Multicellular organism 、 Evolutionary biology 、 Amoeba (genus) 、 Cellular differentiation 、 Genomics 、 Gene
摘要: Aggregative multicellularity, resulting in formation of a spore-bearing fruiting body, evolved at least six times independently amongst both eukaryotes and prokaryotes. Amongst eukaryotes, this form multicellularity is mainly studied the social amoeba Dictyostelium discoideum. In review, we summarise trends evolution cell-type specialisation behavioural complexity four major groups Dictyostelia. We describe cell-cell communication systems that control developmental programme D. discoideum, highlighting central role cAMP regulation cell movement differentiation. Comparative genomic studies showed proteins involved signalling are deeply conserved across Dictyostelia their unicellular amoebozoan ancestors. functional analysis revealed discoideum originated from second messenger encystation. highlight some molecular changes genes were responsible for novel roles multicellular development.
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