Sister chromatid exchange in chromosomes of cattle from three different breeds reared under similar conditions.
Sister chromatid exchange in chromosomes of cattle from three different breeds reared under similar conditions.
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在相似条件下饲养的三个不同品种的牛的染色体中姐妹染色单体交换。
DOI：
10.1111/j.1601-5223.1991.tb00325.x
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发表时间：
2008
期刊：
影响因子：
2.7
通讯作者：
I. Gustavsson
中科院分区：
文献类型：
--
作者：
L. Iannuzzi;G. P. Di Meo;A. Perucatti;L. Ferrara;I. Gustavsson
一个同质组（相同的性别，年龄和环境条件）的35个意大利牛的Podolian，弗里斯兰，和罗马涅品种进行了调查关于自发发生的姐妹染色单体交换（SCE）。在Podolian、Friesian和Romagna品种中，SCE/细胞的平均值分别为7.9 +/- 3.4、7.1 +/- 3.3和7.3 +/- 3.2，Podolian和Friesian品种之间存在显著差异。同时披露的SCE和荧光G-带在较轻的染色单体有可能确定1号染色体，除了双臂的X和Y染色体。染色体间SCE分布显示了一个非随机的模式，由于显着增加的SCE值在染色体1和X，特别是在罗马涅品种。
A homogeneous group (same sex, age and environmental conditions) of 35 Italian cattle of the Podolian, Friesian, and Romagna breeds was investigated concerning the spontaneous incidence of sister chromatid exchange (SCE). The mean values of SCEs/cell were 7.9 +/- 3.4, 7.1 +/- 3.3, and 7.3 +/- 3.2 in the Podolian, the Friesian, and the Romagna breeds, respectively, with significant differences between the Podolian and the Friesian breeds. Simultaneous disclosure of SCEs and fluorescent G-bands in the lighter chromatid made possible the identification of chromosome 1, in addition to the biarmed X and Y chromosomes. The inter-chromosomal SCE-distribution revealed a nonrandom pattern due to significantly increased values of SCEs in chromosomes 1 and X, particularly in the Romagna breed.