Z-chromosome dimorphism in eagle owls
Publication Type: |
Journal Article |
Year of Publication: |
1992 |
Authors: |
Wilhelmus E. R. Rebholz |
Publication/Journal: |
Zoo Biology |
Publisher: |
A Wiley Company, Inc., Wiley Subscription Services |
Keywords: |
birds, karyotypes, sex-chromosomes, strigiformes |
ISBN: |
1098-2361 |
Abstract:
Abstract 10.1002/zoo.1430110409.abs Chromosomal variation within bird species has been rarely studied. Having studied three individuals, I report a difference in the length of Z-chromosomes in one male eagle owl (Bubo bubo) and use C- and R-banding to study the variation between these Z-chromosomes. Absence of non-centromeric heterochromatin in one Z-chromosome is the cause of the difference in length. The presence of two types of Z-chromosome in this eagle owl may reflect hybridization of animals from different subspecies, or might be caused by a spontaneous deletion of C-band positive DNA. © 1992 Wiley-Liss Inc.