Department of Molecular, Cell and Developmental Biology, University of California, Santa Cruz, Santa Cruz, CA, USA.
Curr Biol. 2020 Dec 21;30(24):R1471-R1473. doi: 10.1016/j.cub.2020.10.042.
During a brief increase in temperature, cells undergoing spermatogenesis, but not oogenesis, activate transposons. This sexual dimorphism suggests that temperature stress during spermatogenesis provides a unique opportunity for transposons to mobilize and modify genomes, driving evolutionary change without substantially affecting reproduction.
在短暂的升温过程中,进行精子发生的细胞,但不是卵子发生的细胞,会激活转座子。这种性别二态性表明,精子发生过程中的温度应激为转座子的动员和基因组修饰提供了独特的机会,推动了进化变化,而不会对生殖产生重大影响。