Barnacle duplicate engrailed genes: divergent expression patterns and evidence for a vestigial abdomen

@article{Gibert2000BarnacleDE,
  title={Barnacle duplicate engrailed genes: divergent expression patterns and evidence for a vestigial abdomen},
  author={J. Gibert and E. Mouchel-Vielh and {\'E}. Qu{\'e}innec and J. Deutsch},
  journal={Evolution \& Development},
  year={2000},
  volume={2}
}
SUMMARY Cirripedes (barnacles) are crustaceans that are characterized by a very peculiar body plan, in particular by the lack of an abdomen. To study their body plan, we searched for their engrailed gene. We found two engrailed (en.a/en.b) genes in cirripedes. The two engrailed genes of the rhizocephalan barnacle Sacculina carcini are expressed in the posterior compartment of developing segments and appendages. When the neuroectoderm differentiates into epidermis and neuroderm the expression… Expand
Possible implication of Hox genes Abdominal-B and abdominal-A in the specification of genital and abdominal segments in cirripedes
TLDR
Additional morphological and genetic data on Sacculina are presented to further characterise this structure and discuss the possible implication of the loss or divergence of the Abdominal-A protein in the impaired development of abdominal segments in cirripedes. Expand
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The caudal gene of the barnacle Sacculina carcini is not expressed in its vestigial abdomen
TLDR
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Parasegmental organization of the spider embryo implies that the parasegment is an evolutionary conserved entity in arthropod embryogenesis.
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  • Biology, Medicine
  • Development
  • 2002
TLDR
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TLDR
The data does not support the retention of the multiple en gene duplicates in the genome via their involvement with the novel eyespot evolutionary innovation, and suggests two duplication events of en-family genes, the first evidence of a two-fold duplication in the Lepidoptera. Expand
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TLDR
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TLDR
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Heterospecific transgenesis in Drosophila suggests that engrailed.a is regulated by POU proteins in the crustacean Sacculina carcini
TLDR
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