Nerves innervating copulatory organs show common FMRFamide, FVRIamide, MIP and serotonin immunoreactivity patterns across Dinophilidae (Annelida) indicating their conserved role in copulatory behaviour

@article{Kerbl2018NervesIC,
  title={Nerves innervating copulatory organs show common FMRFamide, FVRIamide, MIP and serotonin immunoreactivity patterns across Dinophilidae (Annelida) indicating their conserved role in copulatory behaviour},
  author={Alexandra Kerbl and Emilie Winther Tolstrup and Katrine Worsaae},
  journal={bioRxiv},
  year={2018}
}
Background Males of the microscopic annelid family Dinophilidae use their prominent glandomuscular copulatory organ (penis) to enzymatically dissolve the female’s epidermis and thereafter inject sperm. In order to test for putative conserved copulatory structures and neural orchestration across three dinophilid species, we reconstructed the reproductive myo- and neuroanatomy and mapped neurotransmitter immunoreactivity patterns of two specific markers with reported roles in invertebrate male… 
Interstitial Annelida
TLDR
This article provides a review of the evolution, systematics, and diversity of these interstitial families, with the exception of Parergodrilidae, which was detailed in the review of Orbiniida by Meca, Zhadan, and Struck within this Special Issue.
Conservative route to genome compaction in a miniature annelid
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The decode of the compact 73.8-megabase genome of Dimorphilus gyrociliatus, a meiobenthic segmented worm, reveals a conservative route to genome compaction in annelids, reminiscent of that observed in the vertebrate Takifugu rubripes.

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