
doi: 10.1007/bf00329605
pmid: 5676106
An unidentified species of the genus Austroagalloides is shown to have 7II+1IV instead of the normal 11II+XO configuration at metaphase I of meiosis in males. The quadrivalent manifests two types of pairing which ensures regular disjunction; normal chiasma-type pairing and distance pairing. It is suggested that the 7II+1IV form is derived from the 11II+XO form by a series of fusions.
Male, Meiosis, Sex Determination Analysis, Insecta, Sex Chromosomes, Female, Chromosomes
Male, Meiosis, Sex Determination Analysis, Insecta, Sex Chromosomes, Female, Chromosomes
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