Temperature and chiasma formation in Schistocerca gregaria

  title={Temperature and chiasma formation in Schistocerca gregaria},
  author={Suzzon A. Henderson},
1. The cytological features characterising individuals of Schistocerca gregaria which have been subjected to a constant temperature of 40° C are described. Reduction in chiasma frequency is accompanied by localisation and univalent production. Univalents at pachytene show asynapsis to predominate, but desynapsis also occurs on a very much smaller scale. For this reason the non-committal term univalence is used to describe the presence of univalents. 2. Chromosome behaviour at first metaphase… CONTINUE READING