Pellicciari C, Formenti D, Zuccotti M, Stanyon R, Manfredi Romanini M G
Dipartimento di Biologia Animale dell'Università degli Studi di Pavia, Italy.
Cytogenet Cell Genet. 1988;47(1-2):1-4. doi: 10.1159/000132492.
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.
基因组大小通过对长臂猿科六个物种以及白眉长臂猿（Hylobates muelleri）和合趾猿（Symphalangus syndactylus）杂交种中孚尔根染色的DNA量进行测定。总体而言，该科所展现出的基因组大小范围比猩猩科更广泛；特别是，合趾猿的DNA比“白掌猿”组中具有44条染色体的白眉长臂猿物种多约15%。对杂交中期细胞的C-异染色质进行定量分析表明，亲本物种基因组大小的差异与C带阳性物质的量相关。长臂猿科是唯一一类染色体组型多样化伴随着组成型异染色质大量定量变化而发生的灵长类动物群体。
