我们正在消耗令人难以置信的真正高度加工的高热量的无菌食品，它们缺乏对微生物的基因转移至关重要的基因库。
We're consuming a lot of really highly processed calorie-dense food that's incredibly sterile, so they lack the microbial reservoirs for these gene transfer events.
这个基因转移可能是由寄生生物或病原体介导产生的。
It is likely that the gene transfer was mediated by a parasite or a pathogen.
基因从一种有机体横向转移到另一有机体的现象是少见的，尤其是在多细胞生物之间更是如此，他说，但这也可能是湖鲟生物进化进程的一个组成部分。
Lateral gene transfer from one organism to another is rare, especially in multicellular animals, he said, but could be part of some evolutionary process for the sturgeon.
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