A Double Segment Periodicity Underlies Segment Generation in Centipede Development

@article{Chipman2004ADS,
  title={A Double Segment Periodicity Underlies Segment Generation in Centipede Development},
  author={A. Chipman and W. Arthur and M. Akam},
  journal={Current Biology},
  year={2004},
  volume={14},
  pages={1250-1255}
}
The number of leg-bearing segments in centipedes varies extensively, between 15 and 191, and yet it is always odd. This suggests that segment generation in centipedes involves a stage with double segment periodicity and that evolutionary variation in segment number reflects the generation of these double segmental units. However, previous studies have revealed no trace of this. Here we report the expression of two genes, an odd-skipped related gene (odr1) and a caudal homolog, that serve as… Expand
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