The Drosophila Hand gene is required for remodeling of the developing adult heart and midgut during metamorphosis.

@article{Lo2007TheDH,
  title={The Drosophila Hand gene is required for remodeling of the developing adult heart and midgut during metamorphosis.},
  author={Patrick C.H Lo and St{\'e}phane Zaffran and S{\'e}bastien S{\'e}natore and Manfred Frasch},
  journal={Developmental biology},
  year={2007},
  volume={311 2},
  pages={287-96}
}
The Hand proteins of the bHLH family of transcriptional factors play critical roles in vertebrate cardiogenesis. In Drosophila, the single orthologous Hand gene is expressed in the developing embryonic dorsal vessel (heart), lymph glands, circular visceral musculature, and a subset of CNS cells. We demonstrate that the absence of Hand activity causes semilethality during the early larval instars. The dorsal vessel and midgut musculature are unaffected in null mutant embryos, but in a large… CONTINUE READING