title: Caudal spotting in the beacon fish (Hemigrammus ocellifer Characidae).
abstract: The beacon fish (Hemigrammus ocellifer) exhibits two phenotypes associated with spotting at the base of the caudal fin, with fish either possessing (H. o. ocellifer) or lacking (H. o. falsus) a prominent red spot in this region. Segregation patterns observed from the progenies of 15 different crosses support a hypothesis that caudal spotting in this species is controlled by a single gene with two alleles, for which the caudal spotting allele is completely dominant.
authors.affiliation: Department of Biology, Howard University, Washington, DC 20059, USA. jfrankel@howard.edu
authors.forename: J S
authors.initials: JS
authors.lastname: Frankel
mesh_terms: D000818:Animals; D005399:Fishes / Q000235:genetics*; D005799:Genes, Dominant; D010858:Pigmentation / Q000235:genetics*; D013623:Tail / Q000378:metabolism*