1983
DOI: 10.1002/ajp.1350040203
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Constitutive heterochromatin polymorphism in Lagothrix lagothricha cana, Cebus apella, and Cebus capucinus

Abstract: We describe the C-bands in the karyotypes of Lagothrix lagothricha CURU, Cebus apella and Cebus capucinus. The C-banding patterns show both a high degree of polymorphism as well as the presence of terminal and interstitial C-bands. Varying amounts of heterochromatin result in dimorphism of some chromosome pairs. The high incidence of chromosome rearrangements found in the Cebidae may be due to the presence of terminal and interstitial C-bands.

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Cited by 21 publications
(7 citation statements)
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“…Ag-NOR (not shown) stains in the secondary constriction located at the proximal region of the long arm of two pairs of acrocentric autosomes (22 and 23), similarly to those described for C. nigrivittatus, C. capuccinus, and C. apella [Dutrillaux et al, 1978;Freitas & Seuánez, 1982;Garcia et al, 1983] but also in the short arm of pair 11. This is in accordance with Garcia et al [1983] who also found, in Cebus apella, the presence of NOR in other chromosomes, besides pairs 22 and 23.…”
Section: Chromosome Relationships Between Callitrichids and Cebus (Thsupporting
confidence: 74%
“…Ag-NOR (not shown) stains in the secondary constriction located at the proximal region of the long arm of two pairs of acrocentric autosomes (22 and 23), similarly to those described for C. nigrivittatus, C. capuccinus, and C. apella [Dutrillaux et al, 1978;Freitas & Seuánez, 1982;Garcia et al, 1983] but also in the short arm of pair 11. This is in accordance with Garcia et al [1983] who also found, in Cebus apella, the presence of NOR in other chromosomes, besides pairs 22 and 23.…”
Section: Chromosome Relationships Between Callitrichids and Cebus (Thsupporting
confidence: 74%
“…(c) Pair number 4 with a paracentric inversion in one chromosome observed in a female C. nigrivittatus. the constitutive heterochromatin regions, as has previously been described in the species of the same genus: C. apella (Seuá nez et al, 1986;Freitas and Seuá nez, 1982;Matayoshi et al, 1987;Ponsà et al, 1995;García et al, 2003) and C. capucinus (Dutrillaux et al, 1978;Garcia et al, 1983;Carlà and Stanyon, 1992). In C. apella, previous reports have detected size variation of non-centromeric heterochromatin regions in chromosomes 4, 6, 11, 12, 17, 18 and 19 (Matayoshi et al, 1987;Ponsà et al, 1995).…”
Section: Resultssupporting
confidence: 57%
“…In the C. apella karyotype, C+ bands were not observed in 1p, 2p, 3p, 8, 16 and 24 chromosomes, whereas the C+ band described in C. apella chromosome 6 (Matayoshi et al, 1987;Ponsà et al, 1995) was not detected in the homologous C. nigrivittatus chromosome. The presence of the terminal C+ band in chromosomes 1, 2 and 3 has been also detected in C. capucinus (Garcia et al, 1983). On the other hand, all locations of C+ bands found in C. nigrivittatus are shared by, at least, two different Cebus species, except the interstitial C+ band in the q arm of pair No.8 (this chromosome is acrocentric in C. nigrivittatus and submetacentric in C. apella and C. capucinus, and both forms are related by a pericentric inversion), the terminal C+ band in the p arm of the fusioned 12/24 chromosome and the interstitial No.16 chromosome heterochromatic band.…”
Section: Resultsmentioning
confidence: 78%
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“…There are particular exceptions to this claim, such as CT 13 in all the species included, and CT 17 in human cells only. The human CT 13 case may be explained by the fact that it carries NORregions and its positioning may be conditioned by other NOR-chromosomes, but this explanation is not valid for the other species that have no NOR regions in chromosome 13 homologs (Garcia et al 1983(Garcia et al , 1995 and our data on these cell lines (images not shown)). Interestingly, the gene-density influence on CT positioning observed in three out of four CTs in the three primate species agrees with the hypothesis of a more internal position of gene-dense chromosomes, although the chromosome-size influence is more widely observed (4/4 CTs in LLA and SSC, and 3/4 CTs in HSA).…”
Section: Intra-species Analysismentioning
confidence: 55%