(f) Overview of outcomes
A2 becomes established displaying reasonable segregation within the heterogametic sex—characteristics that comprise a proto-y chromosome. The haplotype containing the recessive female-determining allele A3 becomes founded and additionally exhibits reasonable segregation within the heterogametic sex—characteristics that comprise a proto-x chromosome. The populace eventually ends up with a combination of heterogametic (A3A2 ? XY) males and homogametic (A3A3 ? XX) females with equal segregation of male and female proto-sex chromosomes within the sex that is heterogametic. Keep in mind that an XY sex-determination system evolves for almost any initial power of drive—i.e. Prov —and any amount of linkage between a plus B —i.e. Supplied r1 and allele A2 determines development as a lady. The populace would wind up at balance with a combination of heterogametic (A3A2 ? ZW) females and homogametic (A3A3 ? ZZ) men with equal segregation of male and chromosomes that are feminine-determining female meiosis. Additionally, it’s possible for the above model to create heterogamety into the reverse intercourse from where drive initially happens. To do this you need simply to replace the dominance connection of alleles during the the locus. If A3 is dominant to A2, then your driving sex goes on to be homozygous (homogametic) for A2 ( maybe maybe not shown). Read More