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  4. Mature sperm small RNA profile in the sparrow: implications for transgenerational effects of age on fitness
 
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Mature sperm small RNA profile in the sparrow: implications for transgenerational effects of age on fitness
File(s)
2019bioRxivMatsushimaetal.pdf (3.51 MB)
Pre-print version
Author(s)
Matsushima, Wayo
Brink, Kristiana
Schroeder, Julia
Miska, Eric Alexander
Gapp, Katharina
Type
Working Paper
Abstract
Mammalian sperm RNA has recently received a lot of interest due to its involvement in epigenetic germline inheritance. Studies of epigenetic germline inheritance have shown that environmental exposures can induce effects in the offspring without altering the DNA sequence of germ cells. Most mechanistic studies were conducted in laboratory rodents and C. elegans while observational studies confirm the phenotypic phenomenon in wild populations of humans and other species including birds. Prominently, paternal age in house sparrows affects offspring fitness, yet the mechanism is unknown. This study provides a first reference of house sparrow sperm small RNA as an attempt to uncover their role in the transmission of the effects of paternal age on the offspring. In this small scale pilot, we found no statistically significant differences between miRNA and tRNA fragments in aged and prime sparrow sperm. These results indicate a role of other epigenetic information carriers, such as distinct RNA classes, RNA modifications, DNA methylation and retained histones, and a clear necessity of future studies in wild populations.
Date Issued
2019-01-16
Citation
2019
URI
http://hdl.handle.net/10044/1/67469
DOI
https://www.dx.doi.org/10.1101/520759
Copyright Statement
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-ND 4.0 International license.
Publication Status
Published
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