摘要:

The gibbon Hylobates hoolock has been found to possess a karyotype different in diploid number and banding pattern from that of any other hylobatid. We propose that the hoolock gibbon occupy its own subgenus in the genus Hylobates.

ISSN:1424-8581    

DOI:10.1159/000131856

出版商:S. Karger AG    

年代:1983

数据来源: Karger

摘要:

Silver-stained cells from 13 specimens of Akodon arviculoides (2n = 14 and 15) were analyzed for the location and frequency of Ag-NOR’s. They were located terminally on four pairs of chromosomes, 3q, 4q, 5p, and Xp. In these 13 individuals, the number of Ag-NOR’s per cell varied between two and eight, and each chromosome had a characteristic pattern of frequency of NOR’s in each individual. Since in A. arviculoides a chromosomal polymorphism resulting from three autosomal pericentric inversions in chromosomes 2, 3, and 5 and a complex rearrangement involving chromosome 1 exist, it was possible to determine the frequency of Ag-staining in each homologue of these pairs in heterozygous individuals. Both X chromosomes had active NOR’s in the females. An Ag-NOR was also present on the single X chromosome of th

ISSN:1424-8581    

DOI:10.1159/000131857

出版商:S. Karger AG    

年代:1983

数据来源: Karger

摘要:

Treatment of standard blood cultures with acridine orange (20–25 ug/ml) during the final 30 min of culture, 30–90 min after the addition of Colcemid, provides a simple method for obtaining elongated human chromosomes for high-resolution trypsin-Giemsa band

ISSN:1424-8581    

DOI:10.1159/000131858

出版商:S. Karger AG    

年代:1983

数据来源: Karger

摘要:

The frequency of sister chromatid exchanges (SCE’s) in the euchromatin and heterochromatin of a human 9qh+ chromosome was determined using the BrdU-Giemsa technique. The 9qh+ region contained fewer exchanges than the euchromatin, and there was an excess number of exchanges at the junction of the euchromatin and heterochromatin of the long arm. BrdU incorporation and differential staining of sister chromatids showed that the heterochromatic region of the 9 was always the last region to replicate and was among the last areas of the whole human chromosome complement to complete replicatio

ISSN:1424-8581    

DOI:10.1159/000131859

出版商:S. Karger AG    

年代:1983

数据来源: Karger

摘要:

The karyotype of a female Muntiacus feae is described. It comprises 13 chromosomes, three submetacentrics, and ten acrocentrics. Chromosome 1 is the sex chromosome. This individual was heterozygous for a Robertsonian translocation between chromosomes 2 and 7.

ISSN:1424-8581    

DOI:10.1159/000131860

出版商:S. Karger AG    

年代:1983

数据来源: Karger

ISSN:1424-8581    

DOI:10.1159/000131861

出版商:S. Karger AG    

年代:1983

数据来源: Karger

ISSN:1424-8581    

DOI:10.1159/000131862

出版商:S. Karger AG    

年代:1983

数据来源: Karger