白颊长臂猿染色体的研究
文章导航 > 动物学研究 > 1996 > 17(3) : 341-346.
刘瑞清, 佴文惠, 陈玉泽, 余定会. 1996: 白颊长臂猿染色体的研究. 动物学研究, 17(3): 341-346.
引用本文: 刘瑞清, 佴文惠, 陈玉泽, 余定会. 1996: 白颊长臂猿染色体的研究. 动物学研究, 17(3): 341-346.
LIU Rui-qing, NAI Wen-hui, CHEN Yu-ze, YU Ding-hui. 1996. A Study on The Chromosomes of White-Cheeked Gibbon (Hylobates leucogenys). Zoological Research, 17(3): 341-346.
Citation: LIU Rui-qing, NAI Wen-hui, CHEN Yu-ze, YU Ding-hui. 1996. A Study on The Chromosomes of White-Cheeked Gibbon (Hylobates leucogenys). Zoological Research, 17(3): 341-346.
白颊长臂猿染色体的研究
详细信息
中图分类号: Q959.848
计量 文章访问数: 2670 HTML全文浏览量: 313 PDF下载量: 1847 出版历程 收稿日期: 1900-01-01 修回日期: 1900-01-01 刊出日期: 1996-08-22A Study on The Chromosomes of White-Cheeked Gibbon (Hylobates leucogenys)
Kunming Institute of Zoology,Academia Sinica,Kunming 650223
摘要
摘要: 本文对我国云南南部的白颊长臂猿(H.leucogenys)染色体的G带、C带、晚复制带及Ag-NORs进行了较为详细的研究。它的2n=52，核型公式为44(M或SM)+6(A)，XY(M，A)。C带表明一些染色体着丝点C带弱化；有的染色体出现插入的和端位的C带；X染色体两臂有端位C带，Y染色体是C带阳性和晚复制的。Ag-NORs的数目，雌体有4个，雄体有5个，Y染色体上具NOR。本文对白颊长臂猿与其它长臂猿间的亲缘关系、核型进化的可能途径进行了讨论。
Abstract: 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 metacentrics or submetacentrics (Nos.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 formula 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) absent of centromeric heterochromatin,(2) interstitial heterochromatin,(3) terminal heterochromatin.Interstitial heterochromatin has been observed on the biarm 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 them are located on the secondary constriction of chromosomes 23 and 24 respectively,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 evolution in the genus Hylobates have been discussed.
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计量 文章访问数: 2670 HTML全文浏览量: 313 PDF下载量: 1847 出版历程 收稿日期: 1900-01-01 修回日期: 1900-01-01 刊出日期: 1996-08-22目录
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