Cytogenetic analysis of great horned owls (Bubo virginianus).
Cytogenetic analysis of great horned owls (Bubo virginianus).
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大角鸮（Bubo virginianus）的细胞遗传学分析。
DOI：
10.1159/000131515
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发表时间：
1980
期刊：
影响因子：
--
通讯作者：
C. Lin
中科院分区：
文献类型：
--
作者：
B. Biederman;D. Florence;C. Lin
对七只尊贵猫头鹰（Bubo virginianus，Gmelin）的外周淋巴细胞进行了染色体分析。发现众数染色体数目为 2n = 82。对大染色体的相对长度和臂比进行了测量。所有染色体的着丝粒位置都含有一个组成型异染色质区域，W 染色体几乎完全由这种物质组成。 BudR-吖啶橙法证实的染色体复制显示，雄性的两条Z染色体同步复制，而雌性的W染色体复制较晚。在该物种中，核仁组织的功能区域似乎位于微染色体上。
A chromosome analysis of seven great honored owls (Bubo virginianus, Gmelin) has been performed on peripheral lymphocytes. The modal chromosome number was found to be 2n = 82. Measurements of relative lengths and arm ratios of the macrochromosomes were made. All chromosomes contain a region of constitutive heterochromatin in a centromeric location, with the W chromosome being composed almost entirely of this material. Chromosome replication, as demonstrated by the BudR-acridine orange method, showed synchronous replication of the two Z chromosomes of the male and late replication of the W chromosome of the female. In this species, functional regions of nucleolar organization appear to be localized to the microchromosomes.