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>The evolution of developmental gene networks: lessons from comparative studies on holometabolous insects
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The evolution of developmental gene networks: lessons from comparative studies on holometabolous insects
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机译:发育基因网络的进化:全脂昆虫比较研究的经验教训
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摘要
Recent comparative studies have revealed significant differences in the developmental gene networks operating in three holometabolous insects: the beetle Tribolium castaneum, the parasitic wasp Nasonia vitripennis and the fruitfly Drosophila melanogaster. I discuss these differences in relation to divergent and convergent changes in cellular embryology. I speculate on how segmentation gene networks have evolved to operate in divergent embryological contexts, and highlight the role that co-option might have played in this process. I argue that insects represent an important example of how diversification in life-history strategies between lineages can lead to divergence in the genetic and cellular mechanisms controlling the development of homologous adult structures.
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