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Z‐chromosome dimorphism in eagle owls
Author(s) -
Rebholz Wilhelmus E. R.
Publication year - 1992
Publication title -
zoo biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.5
H-Index - 54
eISSN - 1098-2361
pISSN - 0733-3188
DOI - 10.1002/zoo.1430110409
Subject(s) - biology , eagle , subspecies , chromosome , zoology , heterochromatin , genetics , sexual dimorphism , evolutionary biology , gene , ecology
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.