title: Genome size and constitutive heterochromatin in Hylobates muelleri and Symphalangus syndactylus and in their viable hybrid.
abstract: 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.
authors: Dipartimento di Biologia Animale dell'Università degli Studi di Pavia, Italy.
authors: C
authors: C
authors: Pellicciari
authors: D
authors: D
authors: Formenti
authors: M
authors: M
authors: Zuccotti
authors: R
authors: R
authors: Stanyon
authors: M G
authors: MG
authors: Manfredi Romanini
mesh_terms: D000818:Animals; D004247:DNA / Q000032:analysis; D006570:Heterochromatin / Q000032:analysis*; D015186:Hominidae / Q000235:genetics*; D006824:Hybridization, Genetic; D006922:Hylobates / Q000235:genetics*; D013045:Species Specificity
chemical_list: D006570:Heterochromatin; D004247:DNA