In other species: goldfish , rainbow trout , guppy , swordtail and platyfish , Nile tilapia , gilthead seabream , barramundi perch , green and golden bell frog , common lizard , Mallard , Garter snake , bark anole , Guadeloupean anole , , sailfin molly , ball python , Midas cichlid , blacktip shark , common wall lizard , Italian wall lizard , three-spined stickleback , blue discus , Sand lizard , common chameleon , flapneck chameleon , mimic poison frog , Asian bonytongue , eastern dwarf tree frog , southern flounder , Siamese fighting fish , leopard coralgrouper , White's rock-skink , , starry flounder , delicate skink , red-top cobalt mbuna , yellowband tropheus , Sagus Kul lizard , toad-headed agama , Oujiang color common carp , poison dart frogs , pumpkin toadlet , Blue Regal "Mbenji" Peacock

Categories: Pigmentation phene

Mendelian trait/disorder: unknown

Disease-related: no

Species-specific name: false gravid spot

Species-specific description: Dodge et al. (2024) "find that ∼40% of X. birchmanni males develop a “false gravid spot,” a melanic pigmentation pattern that mimics the “pregnancy spot” associated with sexual maturity in female live-bearing fish."

Mapping: Dodge et al.  (2024) used genome-wide association mapping to map the false gravid spot phenotype to an intergenic region upstream of kitlga and long-read sequencing identfied complex structural rearrangements between alternate alleles at this locus.