RNAi is activated during Drosophila oocyte maturation in a manner dependent on aubergine and spindle-E.

Abstract:

:Gene silencing by double-stranded RNA is a widespread phenomenon called RNAi, involving homology-dependent degradation of mRNAs. Here we show that RNAi is established in the Drosophila female germ line. mRNA transcripts are translationally quiescent at the arrested oocyte stage and are insensitive to RNAi. Upon oocyte maturation, transcripts that are translated become sensitive to degradation while untranslated transcripts remain resistant. Mutations in aubergine and spindle-E, members of the PIWI/PAZ and DE-H helicase gene families, respectively, block RNAi activation during egg maturation and perturb translation control during oogenesis, supporting a connection between gene silencing and translation in the oocyte.

journal_name

Genes Dev

journal_title

Genes & development

authors

Kennerdell JR,Yamaguchi S,Carthew RW

doi

10.1101/gad.990802

subject

Has Abstract

pub_date

2002-08-01 00:00:00

pages

1884-9

issue

15

eissn

0890-9369

issn

1549-5477

journal_volume

16

pub_type

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