Sex Determination, Sex Chromosomes, and Karyotype Evolution in Insects

  title={Sex Determination, Sex Chromosomes, and Karyotype Evolution in Insects},
  author={Heath Blackmon and Laura Ross and Doris Bachtrog},
  journal={Journal Of Heredity},
Insects harbor a tremendous diversity of sex determining mechanisms both within and between groups. [] Key Result Phylogenetic analysis reveals that male heterogamety is the ancestral mode of sex determination in insects, and transitions to female heterogamety are extremely rare. Many insect orders harbor species with complex sex chromosomes, and gains and losses of the sex-limited chromosome are frequent in some groups. Haplodiploidy originated several times within insects, and parthenogenesis is rare but…

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