%0 Journal Article %T A STUDY ON THE CHROMOSOMES OF WHITE-CHEEKED GIBBON(Hylobates leucogenys)
白颊长臂猿染色体的研究 %A Liu Ruiqing %A Nai Wenhui %A Chen Yuze %A Yu Dinghui %A
刘瑞清 %A 佴文惠 %J 动物学研究 %D 1996 %I Chinese Academy of Sciences %X White-cheeked gibbon(H. leucogenys) is distributed in the south of Yunnan, China.The chromosomes of a female and a male were studied by several banding techniques(G-,C -and Ag-staining), and a techniqe for simultaneous exhibiting chromosome replication patterns and late replicating Y chromosome. The diploid chromosome number is 52. There are 22 pairs of metacentrlcs or submetacentrics (No. 1-22); 3 pairs of acrocentrics(Nos. 23-25), and chromosomes Nos. 23-24 with a secondary constriction near the centromere on the short arm.The X chromosome is a large metacentric, and the Y, the smallest acrocentric. Its karyotype for mula is 44(M or SM)+ 6(A), XY(M, A). The centrimeric distribution of heterochromatin has been demonstrated in some chromosomes. In addion, there are 3 kinds of heterochromatin on the chromosomes:(1) ab sent of centromeric heterochromatin,(2) interstitial heterochromatin,(3) terminal heterochromatin.Interstitial heterochromatin has been observed on the blarm of X chromosome. Y chromosome is completely C-band positive. Silver staining revealed 5 chromosomes with NORs in the male specimen.4 Ag-NORs of theth are heated on the secondary constriction of chromosomes 23 and 24 respectivly,and one of them is located on the Y chromosome which has been confirmed by Fluorescence in situ hybridization(FISH) in the same cell. There are 4 chromosomes with Ag-NORs in the female specimen,and they are also located on the secondary constriction of chromosomes 23 and 24. Moreover,the association of Ag-NORs have been observed. Base on the above results,the relationship in gibbons and the way of chromosome evo lution in the genus Hylobates have been discussed. %K H %K leucogencys %K Banding patterns of chromosome %K Yunnan
白颊长臂猿 %K 染色体 %K 灵长目 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=7C502F1A6798ACE1B8C57E291C48C7F1&aid=1D2F72867D917EC896652E58CE76B344&yid=8A15F8B0AA0E5323&vid=BCA2697F357F2001&iid=38B194292C032A66&sid=4B168891B5E5FB30&eid=C7DDDE86E6286CD9&journal_id=0254-5853&journal_name=动物学研究&referenced_num=0&reference_num=6