Division of Animal Physiology and Reproduction, ICAR-Central Institute for Research on Buffaloes, Hisar, 125001, India.
Department of Obstetrics and Gynecology, All India Institute of Medical Sciences, New Delhi, 110029, India.
Sci Rep. 2019 Aug 6;9(1):11366. doi: 10.1038/s41598-019-47909-8.
Somatic cell nuclear transfer (SCNT) technology provides an opportunity to multiply superior animals that could speed up dissemination of favorable genes into the population. In the present study, we attempted to reproduce a superior breeding bull of Murrah buffalo, the best dairy breed of buffalo, using donor cells that were established from tail-skin biopsy and seminal plasma. We studied several parameters such as cell cycle stages, histone modifications (H3K9ac and H3K27me3) and expression of developmental genes in donor cells to determine their SCNT reprogramming potentials. We successfully produced the cloned bull from an embryo that was produced from the skin-derived cell. Growth, blood hematology, plasma biochemistries, and reproductive organs of the produced cloned bull were found normal. Subsequently, the bull was employed for semen production. Semen parameters such as CASA (Computer Assisted Semen Analysis) variables and in vitro fertilizing ability of sperms of the cloned bull were found similar to non-cloned bulls, including the donor bull. At present, we have 12 live healthy progenies that were produced using artificial insemination of frozen semen of the cloned bull, which indicate that the cloned bull is fertile and can be utilized in the buffalo breeding schemes. Taken together, we demonstrate that SCNT can be used to reproduce superior buffalo bulls.
体细胞核移植 (SCNT) 技术为繁殖优秀动物提供了机会,这可以加速优良基因在种群中的传播。在本研究中,我们试图使用源自尾皮肤活检和精液的供体细胞来繁殖印度摩拉水牛(最好的乳用水牛品种)的优秀种公牛。我们研究了供体细胞的细胞周期阶段、组蛋白修饰(H3K9ac 和 H3K27me3)和发育基因的表达等几个参数,以确定其 SCNT 重编程潜力。我们成功地从皮肤细胞来源的胚胎中生产出了克隆牛。所生产的克隆牛的生长、血液血液学、血浆生化学和生殖器官均正常。随后,该公牛被用于精液生产。克隆公牛的精液参数,如 CASA(计算机辅助精液分析)变量和精子的体外受精能力,与非克隆公牛(包括供体公牛)相似。目前,我们已经使用克隆公牛的冷冻精液进行了人工授精,产生了 12 头健康的后代,这表明该克隆公牛具有生育能力,可以用于水牛的繁殖计划。综上所述,我们证明了 SCNT 可用于繁殖优秀的水牛公牛。