A spontaneous interchange in chorthippus brunneus with extensive chiasma formation in an interstitial segment

@article{John2004ASI,
  title={A spontaneous interchange in chorthippus brunneus with extensive chiasma formation in an interstitial segment},
  author={Bernard John and Godfrey M. Hewitt},
  journal={Chromosoma},
  year={2004},
  volume={14},
  pages={638-650}
}
1. A spontaneous interchange is described between the metacentric L1 and the acrocentric M5 members in a male of Chorthippus brunneus (2n=17). The interchange is markedly unequal and leads to the production of two new categories of chromosomes 15 and 51 which are readily distinguishable both at mitosis and meiosis. 2. In 85% of the cells examined the interchange was present as a chain of four multiple. 58% of these chains had a chiasma in the longer of the two interstitial segments produced as… CONTINUE READING