Genome size and constitutive heterochromatin in Hylobates muelleri and Symphalangus syndactylus and in their viable hybrid.
Genome size was measured as the amount of Feulgen-stained DNA in six species of the family Hylobatidae and in a hybrid of the gibbon (Hylobates muelleri) and siamang (Symphalangus syndactylus). The family, on the whole, exhibits a wider range of genome sizes than pongids; in particular, the siamang has about 15% more DNA than the 44-chromosome Hylobates species of the "lar" group. Quantitative analysis of C-heterochromatin in hybrid metaphases showed that the difference in genome size of the parental species correlates with the amount of C-band-positive material. Hylobatids are the only group of primates in which karyotype diversification has taken place with a massive quantitative change in constitutive heterochromatin.
Pellicciari
C
C
Dipartimento di Biologia Animale dell'Università degli Studi di Pavia, Italy.
Formenti
D
D
Zuccotti
M
M
Stanyon
R
R
Manfredi Romanini
M G
MG
D000818:Animals; D004247:DNA / Q000032:analysis; D006570:Heterochromatin / Q000032:analysis*; D015186:Hominidae / Q000235:genetics*; D006824:Hybridization, Genetic; D006922:Hylobates / Q000235:genetics*; D013045:Species Specificity
D006570:Heterochromatin; D004247:DNA