Karyotypes of Shrews of the Genera Cryptotis and Blarina (Mammalia: Soricidae)

Authors

Hugh H. Genoways, University of Nebraska - LincolnFollow
James C. Patton III, University of Georgia, Athens
J. R. Choate, Museum of the High Plains, Fort Hays Kansas State College

Date of this Version

1977

Comments

Published in Experientia (March 25, 1977) 33(10): 1,294-1,295. Copyright 1977, Birkhäuser/Springer. Used by permission.

Abstract

Cryptotis parva has a diploid number of 52 and a fundamental number of 50. Blarina brevicauda in Nebraska and Pennsylvania has a diploid number of 49 or 50 and a fundamental number of 48. Blarina carolinensis in Nebraska and Kansas has a diploid number of 52 and a fundamental number of 62. The X-chromosome in all 3 species is a large metacentric chromosome. The Y-chromosome is a small acrocentric in Blarina, whereas in Cryptotis it is a small subtelocentric.