Early cleavage of preimplantation embryos is regulated by tRNAGln-TTG–derived small RNAs present in mature spermatozoa
Xiaoxu Chen, Yi Zheng, Anmin Lei, Hanxue Zhang, Huimin Niu, Xueliang Li, Pengfei Zhang, Mingzhi Liao, Yinghua Lv, Zhendong Zhu, Chuanying Pan, Wuzi Dong, Hong Chen, De Wu, Wansheng Liu, Geert Hamer, Shenming Zeng, Wenxian Zeng
Abstract
fertilized oocytes and subsequent single-cell RNA-seq of embryos, we identified a specific functional tsRNA group (termed here Gln-TTGs) that participate in the early cleavage of porcine preimplantation embryos, probably by regulating cell cycle-associated genes and retrotransposons. We conclude that specific tsRNAs present in mature spermatozoa play significant roles in preimplantation embryo development.
Topics & Concepts
BiologyEmbryoBlastocystEpigeneticsSpermGeneticsBlastomereMicroinjectionCell biologyAndrologyEmbryogenesisGeneMedicineMicroRNA in disease regulationRNA Interference and Gene DeliveryRenal and related cancers