We report on the first reciprocal chromosome painting of lorisoids and humans. The chromosome painting showed a remarkable syntenic homology between Otolemur and Nycticebus. Eight derived syntenic associations of human segments are common to both Otolemur and Nycticebus, indicative of a considerable period of common evolution between the greater galago and the slow loris. Five additional Robertsonian translocations form the slow loris karyotype, while the remaining chromosomes are syntenically equivalent, although some differ in terms of centromere position and heterochromatin additions. Strikingly, the breakpoints of the human chromosomes found fragmented in these two species are apparently identical. Only fissions of homologs to human chromosomes 1 and 15 provide significant evidence of a cytogenetic link between Lemuriformes and Lorisiformes. The association of human chromosomes 7/16 in both lorisoids strongly suggests that this chromosome was present in the ancestral primate genome.

STANYON, R., DUMAS, F., STONE, G., BIGONI, F. (2006). MULTIDIRECTIONAL CHROMOSOME PAINTING REVEALS A REMARKABLE SYNTENIC HOMOLOGY BETWEEN THE GREATER GALAGOS AND THE SLOW LORIS. AMERICAN JOURNAL OF PRIMATOLOGY, 68(4), 349-359 [10.1002/ajp.20229].

MULTIDIRECTIONAL CHROMOSOME PAINTING REVEALS A REMARKABLE SYNTENIC HOMOLOGY BETWEEN THE GREATER GALAGOS AND THE SLOW LORIS

DUMAS, Francesca;
2006-01-01

Abstract

We report on the first reciprocal chromosome painting of lorisoids and humans. The chromosome painting showed a remarkable syntenic homology between Otolemur and Nycticebus. Eight derived syntenic associations of human segments are common to both Otolemur and Nycticebus, indicative of a considerable period of common evolution between the greater galago and the slow loris. Five additional Robertsonian translocations form the slow loris karyotype, while the remaining chromosomes are syntenically equivalent, although some differ in terms of centromere position and heterochromatin additions. Strikingly, the breakpoints of the human chromosomes found fragmented in these two species are apparently identical. Only fissions of homologs to human chromosomes 1 and 15 provide significant evidence of a cytogenetic link between Lemuriformes and Lorisiformes. The association of human chromosomes 7/16 in both lorisoids strongly suggests that this chromosome was present in the ancestral primate genome.
2006
STANYON, R., DUMAS, F., STONE, G., BIGONI, F. (2006). MULTIDIRECTIONAL CHROMOSOME PAINTING REVEALS A REMARKABLE SYNTENIC HOMOLOGY BETWEEN THE GREATER GALAGOS AND THE SLOW LORIS. AMERICAN JOURNAL OF PRIMATOLOGY, 68(4), 349-359 [10.1002/ajp.20229].
File in questo prodotto:
File Dimensione Formato  
Stanyon_et_al-2006-American_Journal_of_Primatology.pdf

Solo gestori archvio

Dimensione 405.07 kB
Formato Adobe PDF
405.07 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/19240
Citazioni
  • ???jsp.display-item.citation.pmc??? 3
  • Scopus 16
  • ???jsp.display-item.citation.isi??? 13
social impact