Methods, uses, and compositions for manipulating genomic DNA. Some of the embodiments of the invention provide for making a founder animal that is completely free of all unplanned genetic modifications. Some embodiments are directed to removing genetic faults in established breeds without making other alterations to the genome. Other embodiments are directed to particular tools or processes such as TALENs or CRISPR with a preferred truncation. One embodiment involves introducing a targeted targeting endonuclease system and a HDR template into a cell (optionally with a mismatch in the binding of the targeting endonuclease and the targeted site). Another embodiment includes processes of making a genetically modified livestock animal comprising a genome that comprises inactivation of a neuroendocrine gene selective for sexual maturation, with the inactivation of the gene preventing the animal from becoming sexually mature. One embodiment includes compositions and methods for making livestock with a polled allele, including migrating a polled allele into a bovine species without changing other genes or chromosomal portions.
操纵
基因组 DNA 的方法、用途和组合物。本发明的一些实施方案提供了一种完全不含所有计划外
基因修饰的创始动物。本发明的一些实施方案是为了在不对
基因组进行其他改变的情况下,消除已培育品种的
基因缺陷。其他实施方案则针对特定的工具或过程,如 TALENs 或带有优选截断的 CRI
SPR。一个实施方案涉及将靶向内切酶系统和 HDR 模板引入细胞(可选择在靶向内切酶和靶向位点的结合中存在错配)。另一个实施方案包括制造转
基因家畜的过程,该转
基因家畜的
基因组包括对性成熟有选择性的神经内分泌
基因的失活,该
基因的失活阻止了家畜的性成熟。一个实施方案包括制造具有花粉等位
基因的家畜的组合物和方法,包括在不改变其他
基因或染色体部分的情况下将花粉等位
基因迁移到牛种中。