Timing of initiation of polyadenylation of preformed RNA in sea urchin and Urechis caupo zygotes☆
[摘要] Anincreaseinthesynthesisofpolyadenylicacid,followingfertilization,wasexaminedinseaurchin,Strongylocentrotuspurpuratus,andthemarinewormUrechiscaupoembryos.Itwasfoundthatinbothorganismsthereisalargeincreaseintheincorporationof[3H]adenosineintothepoly(A)region,ofpoly(A)-containingRNA,inthephaseprecedingthe2-cellstage.InseaurchinthisrisewaslocalizedtotheG2period.SimilarfindingsweremadeinUrechisindicatingthatpolyadenylationofRNAmaybeacommonpostfertilizationeventinmanydevelopingorganisms.
[发布日期] [发布机构]
[效力级别] [学科分类] 生物科学（综合）
[关键词] [时效性]
