Distribution of C-band heterochromatin in the ZW sex chromosomes of European and American eels (Anguillidae, Teleostomi)
作者:
E.-H. Park,
H. Grimm,
期刊:
Cytogenetic and Genome Research
(Karger Available online 1981)
卷期:
Volume 31,
issue 3
页码: 167-174
ISSN:1424-8581
年代: 1981
DOI:10.1159/000131642
出版商: S. Karger AG
数据来源: Karger
摘要:
The ZW sex chromosomes of the European eel, Anguilla anguilla, and the American eel, A. rostrata, were examined with C-band and fluorescent staining to demonstrate the C-band heterochromatin. The W as well as Z chromosomes in both species are C-band negative except for a small amount of C-band heterochromatin in the centromeric region, in contrast to the W or Y elements of most other vertebrates. No fluorescing W-associated body is evident either in interphase nuclei or in metaphase plates. The ZW chromosomes of the two species have substantially similar size, morphology, and patterns of C-band heterochromatin. Karyologic and evolutionary implications are discussed.
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