B chromosomes, translocation between B and autosomes, and C-heterochromatin polymorphism of the grasshopper Podisma sapporensis Shir. (Orthoptera, Acrididae) in Hokkaido, northern Japan

• Authors: E. Warchalowska-Sliwa , A. Bugrov , H. Tatsuta , S. Akimoto
• Languages of publication: EN

Abstracts

EN

Seven categories of B chromosomes found in the brachypterus grasshopper Podisma sapporensis from Hokkaido populations differ in structure, size, and C-band content. The interchange between B and one autosome from M3 and sporadically M7 was observed in most of the populations examined. Such an interaction between standard and non-standard chromosomal set provides an insight into the integration of supernumerary chromosome. In addition, C-heterochromatin polymorphism was also identified in male karyotypes in some populations. These facts indicate P. sapporensis is a highly polymorphic species from the cytogenetic point of view.

Keywords

EN

B CHROMOSOME; CHROMOSOME; CYTOGENETICS; GRASSHOPPER; ORTHOPTERA; PODISMA SAPPORENSIS; POLYMORPHISM; SPECIATION

Discipline

• ZOOLOGY: ZOOLOGY

• Journal: Folia Biologica
• Year: 2001
• Volume: 49
• Issue: 1-2
• Pages: 63-75

Contributors

author

E. Warchalowska-Sliwa

author

A. Bugrov

author

H. Tatsuta

author

S. Akimoto

• Document Type: ARTICLE
• Publication order reference: E. Warchalowska-Sliwa, Department of Experimental Zoology, Institute of Systematics and Evolution of Animals, Polish Academy of Sciences, Slawkowska 17, 31-016 Krakow, Poland