家兔（穴兔）有丝分裂染色体的DNA测量

DNA measurements of mitotic chromosomes of the rabbit (Orytolagus cuniculus).

作者信息

Ashworth L K, Carrano A V, Mayall B H

出版信息

Cytogenet Cell Genet. 1979;24(1):68-71. doi: 10.1159/000131358.

Abstract

DNA cytophotometry was used to obtain the relative DNA content of mitotic chromosomes of Orytolagus cuniculus. DNA ranking of the rabbit chromosomes is presented, and related to the quinacrine and Giemsa-banded karyotype. In addition, the relative DNA content of the short and long arms of each chromosome was calculated and the DNA-based centromeric index, (i.e., the ratio of long-arm DNA to total chromosomal DNA) determined. The Y chromosome is clearly a submetacentric chromosome on the basis of the DNA measurements.

摘要

采用DNA细胞光度测定法获取家兔有丝分裂染色体的相对DNA含量。给出了家兔染色体的DNA排序，并将其与喹吖因和吉姆萨带型核型相关联。此外，计算了每条染色体短臂和长臂的相对DNA含量，并确定了基于DNA的着丝粒指数（即长臂DNA与染色体总DNA的比率）。根据DNA测量结果，Y染色体显然是一条亚中着丝粒染色体。