Characteristics of the karyotype of Ukrainian buffalos

IF 0.2 4区 农林科学 Q4 AGRICULTURE, DAIRY & ANIMAL SCIENCE
Lyubov Starodub, Nataliia Mokhnachova
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引用次数: 0

Abstract

The article presents the results of studying the karyotype of the Ukrainian buffalo population. With the help of routine and GTG methods of analysis of metaphase plates of chromosomes, it was established that in the studied animals the diploid chromosome set was equal to fifty chromosomes (2n=50), which consisted of 5 pairs of meta- and submetacentric and 19 pairs of acrocentric autosomes and one pair (XX) or (XY) sex chromosomes. The total number of chromosome arms (FN) was 60, which correspond to animals of the water buffalo species (Bubalus bubalis), a subspecies of the river buffalo (B. b. Bubalis). Cytogenetic control revealed wide intraspecies limits of spontaneous somatic mutagenesis: absence of constitutive chromosomal disorders; the frequency of metaphases with aneuploidy, the average value (M±m) of which was equal to 10.5±0.13%, polyploidy (M±m=0.7±0.25%), asynchronous separation of the centromeric regions of chromosomes - (M±m=5.3±2.00), chromosomal breaks (M±m=0.7±0.24%), the proportion of cells with micronuclei (M±m=2.5±0.39‰), binucleated cells (M±m=2.6±0.32‰) and mitotic index (M±m=4.8±0.65‰). It has been established that Ukrainian river buffaloes are characterized by high karyotype stability.
乌克兰水牛核型的特征
文章介绍了对乌克兰水牛群体核型的研究结果。借助常规和 GTG 方法分析染色体的分裂板,确定了研究动物的二倍体染色体组等于 50 条染色体(2n=50),其中包括 5 对元中心和亚元中心、19 对同心常染色体和一对 (XX) 或 (XY) 性染色体。染色体臂(FN)总数为 60,与水牛种(Bubalus bubalis)动物相对应,是河水牛(B. b. Bubalis)的一个亚种。细胞遗传学控制表明,自发体细胞诱变的种内限制很宽:不存在染色体组成障碍;非整倍体的分裂相频率(平均值(M±m)等于 10.5±0.13%)、多倍体(M±m=0.7±0.25%)、染色体中心区分离不同步-(M±m=5.3±2.00)、染色体断裂(M±m=0.7±0.24%)、微核细胞比例(M±m=2.5±0.39‰)、双核细胞(M±m=2.6±0.32‰)和有丝分裂指数(M±m=4.8±0.65‰)。已确定乌克兰河水牛具有核型稳定性高的特点。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Buffalo Bulletin
Buffalo Bulletin AGRICULTURE, DAIRY & ANIMAL SCIENCE-
CiteScore
0.50
自引率
0.00%
发文量
53
审稿时长
>12 weeks
期刊介绍: Buffalo Bulletin is published quarterly in January-March, April-June, July-September and October-December. Contributions on any aspect of research or development, progress reports of projects and news on buffalo will be considered for publication in the bulletin.
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