CRISPR-Cas9 effectors facilitate generation of single-sex litters and sex-specific phenotypes.

CRISPR-Cas9 effectors facilitate generation of single-sex litters and sex-specific phenotypes.
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DOI:
10.1038/s41467-021-27227-2
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发表时间:
2021-12-03
影响因子:
16.6
通讯作者:
Turner JMA
Turner JMA
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Douglas C;Maciulyte V;Zohren J;Snell DM;Mahadevaiah SK;Ojarikre OA;Ellis PJI;Turner JMA

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动物是科学研究中必不可少的遗传工具和农业中的全球资源。在这两个领域,往往需要一个单一的性别过剩。生产和淘汰不受欢迎的性别的动物的道德和经济负担是相当大的。使用小鼠作为模型,我们开发了一种合成的致死性双组分CRISPR-Cas9策略,该策略以百分之百的效率产生仅雄性或雌性的窝仔。引人注目的是,我们观察到一定程度的窝产仔数补偿相对于控制交配,表明我们的系统有可能增加所需的性别相比,标准育种设计的产量。双组分系统也可以被重新利用以产生出生后性别特异性表型。我们的方法利用CRISPR-Cas9的技术应用,可能适用于其他脊椎动物物种,并为实验室研究和农业的道德改进提供了进展。在动物研究和农业等领域,往往需要大量的单一性别,导致资源浪费和道德考虑。在本文中,作者开发了一种CRISPR/Cas9介导的合成致死系统,该系统能够产生可用于多种生物的单性后代。
Animals are essential genetic tools in scientific research and global resources in agriculture. In both arenas, a single sex is often required in surplus. The ethical and financial burden of producing and culling animals of the undesired sex is considerable. Using the mouse as a model, we develop a synthetic lethal, bicomponent CRISPR-Cas9 strategy that produces male- or female-only litters with one hundred percent efficiency. Strikingly, we observe a degree of litter size compensation relative to control matings, indicating that our system has the potential to increase the yield of the desired sex in comparison to standard breeding designs. The bicomponent system can also be repurposed to generate postnatal sex-specific phenotypes. Our approach, harnessing the technological applications of CRISPR-Cas9, may be applicable to other vertebrate species, and provides strides towards ethical improvements for laboratory research and agriculture. In areas such as animal research and agriculture a single sex is often required in abundance, leading to wasted resources and ethical considerations. Here the authors develop a CRISPR/Cas9 mediated synthetic lethal system that enables the production of single sex offspring that can be repurposed for use in multiple organisms.
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