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Heterochromatin and cytogenetic polymorphisms in Cebus apella (Cebidae, Platyrrhini)
Author(s) -
Ponsà M.,
García M.,
Borell A.,
Garcia F.,
Egozcue J.,
Gorostiaga M. A.,
Delprat A.,
Mudry M.
Publication year - 1995
Publication title -
american journal of primatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.988
H-Index - 81
eISSN - 1098-2345
pISSN - 0275-2565
DOI - 10.1002/ajp.1350370407
Subject(s) - heterochromatin , biology , centromere , chromosome , genetics , constitutive heterochromatin , cytogenetics , karyotype , evolutionary biology , gene
Cytogenetic studies have been carried out in 39 specimens of C. apella of different origins. Three different morphologies, one affecting the long arm of chromosome 4 and two affecting pair 17, have been detected. In each case, they can be related by paracentric inversions. Heterochromatin polymorphisms affecting terminal or interstitial C+ regions have also been observed. The length of the terminal heterochromatic region in the long arms of chromosome 11 is variable in C. apella sp., in C. a. paraguayanus and absent in the C. a. nigritus specimens studied. Interstitial C + bands can be observed in the long arms of the biarmed chromosomes 4 and 6, and in the long arms of the acrocentric pairs 12, 13, 17, 18, 19, 20, and 21. Interstitial C + bands in the long arms of chromosomes 4, 12, 17, and 19 are present in all animals studied, although their size is variable, especially in the case of chromosomes 17 and 19. © 1995 Wiley‐Liss, Inc.