Abstract
Abstract Three phenotypic color pattern genes of the guppy (Poecilia reticulata), i.e., black caudalpeduncle (Bcp), red tail (Rdt) and variegated tail patterning (Var), were genetically analyzed and mapped. Crosses between the Tuxedo (TUX) and Green Variegated (GV) guppy strains commercially cultured in Singapore were used to determine the gene control of these color patterns. F1 progenies were produced by single-pair reciprocal crossing between TUX and GV, while the F2 generation was obtained from full-sib mating between F1 males and females. F1 and F2 data were segregated according to color phenotypes and sex, and tested by chi-square analyses. The Bcp, Rdt and Var color pattern genes, located at different loci on the X- and Y-chromosomes, showed single gene inheritance and dominant expression in both sexes. Their corresponding recessive alleles, Bcp+, Rdt+ and Var+, do not produce any color patterns. Genotypes of Tuxedo males are proposed to be XBcp,Rdt,Var+YBcp,Rdt,Var+ (type I), XBcp+,Rdt,Var+YBcp,Rd...
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
