Ψ MTNR1A - Choloepus didactylus

Reference Gene:
Job_ID:
Curator:
GlossID Species Gene Loss Mechanism Loss Type Lineage Specific Evidence Accession Nr.
GL_CPENGB Choloepus didactylus LOF (frameshift, premature stop, ss) Full Yes Single individual SRA

Statements

Type Excerpt DOI
Functional "In mammals, Mtnr1a and Mtnr1b receptors are involved in the response of the clock machinery to melatonin stimulation (Reppart et al. 1996)." 10.1007/s00239-021-10025-1
Mutation Description "On the other hand, for both species comprising the two-toed sloth group (Choloepus sp.), we were able to identify a validated 8-nucleotide deletion and a 20-nucleotide deletion in exon 2 together with a 4-nucleotide insertion in exon 1 (Fig. 3; Online Resources 4 and 8)." 10.1007/s00239-021-10025-1
Methodology & Validation "Mutational validation was performed through retrieval of raw sequencing reads in (at least) two independent Sequence Read Archive (SRA) projects (when available)." 10.1007/s00239-021-10025-1
Timing of Loss "Interestingly, the mutational profile of melatonin synthesis and signaling genes within Xenarthra, supports the occurrence of independent inactivation events among Xenarthran orders (Cingulata and Pilosa)." 10.1007/s00239-021-10025-1
Phenotypic "Our results strongly suggest a complete landscape of gene loss in Xenarthra, which further reinforce reports suggesting the lack of a pineal gland in several members of this superorder." 10.1007/s00239-021-10025-1

Curator Observations

Consult Supplementary Data 4 and 8.