Ψ OPN1LW - Balaenoptera edeni

Reference Gene:
Job_ID:
Curator:
GlossID Species Gene Loss Mechanism Loss Type Lineage Specific Evidence Accession Nr.
GL_O8Z5I7 Balaenoptera edeni LOF (frameshift, premature stop, ss) Full Yes Genomic

Statements

Type Excerpt DOI
Mutation Description "For the remaining genes, we identified additional species with pseudogenes based on frameshift mutations or stop codons: OPN1LW (Balaenoptera borealis, B. edeni, Mesoplodon carlhubbsi, M. europaeus)..." 10.1093/molbev/msaa070
Timing of Loss "With the addition of B. borealis and B. edeni here, we confirm that a mutation in Exon 2 of OPN1LW identified by Meredith et al. (2013) is found in all Balaenopteroidea (table 1)." 10.1093/molbev/msaa070
Phenotypic "The loss of function in GRK7 and other cone-specific genes identified here (OPN1LW, CNGB3, CNGA3, GNAT2, PDE6C) indicates that many more cetacean species have lost cone-mediated vision than reviously known, including B. borealis, B. edeni, Caperea marginata, K. sima, Berardius bairdii, H. ampullatus, and many if not all species of Mesoplodon." 10.1093/molbev/msaa070
Phenotypic "All cetaceans have lost the shortwavesensitive opsin (OPN1SW), and deep-diving lineages (beaked whales, sperm whales) as well as some baleen whales have also lost their longwave-sensitive opsin (OPN1LW), resulting in rod monochromatic vision (Peichl et al. 2001; Levenson and Dizon 2003; Meredith et al. 2013)." 10.1093/molbev/msaa070

Curator Observations

Authors used Illumina genomic libraries and coverage to investigate coding status of the target genes (See table 1). Authors identified a 1nt deletion in exon 2.