OMIA 002229-9739 : Hypotrichosis, HR-related in Tursiops truncatus

In other species: domestic cat , sheep , long-beaked common dolphin , beluga whale , Indo-Pacific finless porpoise , Yangtze River dolphin , minke whale , Omura's baleen whale

Possibly relevant human trait(s) and/or gene(s) (MIM number): 146550

Mendelian trait/disorder: yes

Considered a defect: no

Key variant known: yes

Year key variant first reported: 2013

Cross-species summary: Also known as Hairless

Molecular basis: Chen et al. (2013) reported evidence that the HR gene in cetaceans, including Tursiops truncatus, has degenerated into a non-functional pseudogene, which is consistent with the hairlessness of this species.

Associated gene:

Symbol Description Species Chr Location OMIA gene details page Other Links
HR hair growth associated Tursiops truncatus 6 NC_047039.1 (16442736..16458646) HR Homologene, Ensembl, NCBI gene


2013 Chen, Z., Wang, Z., Xu, S., Zhou, K., Yang, G. :
Characterization of hairless (Hr) and FGF5 genes provides insights into the molecular basis of hair loss in cetaceans. BMC Evol Biol 13:34, 2013. Pubmed reference: 23394579. DOI: 10.1186/1471-2148-13-34.

Edit History

  • Created by Frank Nicholas on 27 Jan 2020
  • Changed by Frank Nicholas on 27 Jan 2020