Developmental origin of segmental identity in the leech mesoderm.

@article{Gleizer1993DevelopmentalOO,
  title={Developmental origin of segmental identity in the leech mesoderm.},
  author={L Gleizer and Gunther S. Stent},
  journal={Development},
  year={1993},
  volume={117 1},
  pages={
          177-89
        }
}
Segmentation in the leech embryo is established by a stereotyped cell lineage. Each of the 32 segments arises from homologous, bilaterally symmetrical complements of mesodermal and ectodermal blast cell clones. Although segments are homologous, they are regionally differentiated along the longitudinal body axis. Various segments display idiosyncratic ensembles of features, which constitute discrete segmental identities. The differentiation of segment-specific features, such as the mesoderm… CONTINUE READING
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