Daphnia magna egg piRNA cluster expression profiles change as mothers age.

ABSTRACT:

Background

PiRNAs prevent transposable elements wreaking havoc on the germline genome. Changes in piRNA expression over the lifetime of an individual may impact on ageing through continued suppression, or release, of transposable element expression. We identified piRNA producing clusters in the genome of Daphnia magna by a combination of bioinformatic methods, and then contrasted their expression between parthenogenetically produced eggs representing maternally-deposited germline piRNAs of young (having their 1^st clutch) and old (having their 5^th clutch) mothers. Results from eggs were compared to cluster expression in three generations of adults.

Results

As for other arthropods, D. magna encodes long uni-directionally transcribed non-coding RNAs consis

SUBMITTER: Hearn J 

PROVIDER: S-EPMC9175491 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature