| Literature DB >> 8143091 |
W Schempp1, R Toder, W Rietschel, F Grützner, A Mayerová, A Gauckler.
Abstract
An inverted and satellited Y chromosome of almost acrocentric appearance was detected in seven of 14 male orangutans. In the remaining seven animals a submetacentric Y chromosome without NORs occurred. The high frequency with which the satellited Y chromosomes were associated with acrocentric autosomes and the positive AgNO3-staining of their satellite stalks clearly indicate the active state of the NOR on the Y chromosomes. DNA fingerprinting in two orangutan families showed that the inverted and satellited Y chromosomes in carrier orangutan males do not interfere with normal fertility. Within our sample of male orangutans studied, the inverted and satellited Y chromosome is restricted to Sumatran animals; all Bornean specimens possessed the submetacentric Y chromosome. The question arises whether these two kinds of Y chromosome differ constitutively between the Pongo pygmaeus subpopulations.Entities:
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Year: 1993 PMID: 8143091 DOI: 10.1007/bf00710609
Source DB: PubMed Journal: Chromosome Res ISSN: 0967-3849 Impact factor: 5.239