Evolutionary biology: A gut feeling for isolation.
Evolutionary biology: A gut feeling for isolation.
复制标题
进化生物学：一种孤立的直觉。
作者：
Hurst GD
动物与其肠道微生物之间关系的深远影响正变得越来越清晰。新的发现表明，它甚至可以创造出使物种分离的障碍。物种形成的过程，即一个谱系分裂成两个独立的基因库，其核心是基因流动障碍的进化，这些障碍在种群接触时保持差异。基因流动可以通过许多方式减少，包括交配失败，精卵不相容，以及杂交后代的不育或不活。Brucker和Bordenstein在《科学》杂志上发表文章，描述了生殖隔离的一个新来源：常驻肠道微生物对杂种存活的影响。
The far-reaching effects of the relationship between an animal and its resident gut microorganisms are becoming ever clearer. New findings suggest it can even create barriers that keep species separate.The process of speciation, whereby one lineage splits into two independent gene pools, has at its heart the evolution of barriers to gene flow that maintain differences when populations are in contact. Gene flow can be reduced in many ways, including failure to mate, sperm–egg incompatibility, and sterility or inviability of hybrids. Writing in Science, Brucker and Bordenstein 1 describe a novel source of reproductive isolation: the influence of resident gut microorganisms on hybrid survival.