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7 August 2013 Translational Activation of Developmental Messenger RNAs During Neonatal Mouse Testis Development
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Abstract

The basic tenets of germ cell development are conserved among metazoans. Following lineage commitment in the embryo, germ cells proliferate, transition into meiosis, and then differentiate into gametes capable of fertilization. In lower organisms such as Drosophila and C. elegans, germline stem cells make the decision to proliferate or enter meiosis based in large part on the regulated expression of genes by translational control. This study undertakes a direct characterization of mRNAs that experience translational control and their involvement in similar decisions in the mammalian testis. We previously showed that translation of mRNA encoding the germ cell-specific gene Rhox13 was suppressed in the fetal and neonatal testis. By investigating changes in message utilization during neonatal testis development, we found that a large number of mRNAs encoding both housekeeping and germ cell-specific proteins experience enhanced translational efficiency, rather than increase in abundance, in the testis as quiescent gonocytes transition to mitotic spermatogonia. Our results indicate that translational control is a significant regulator of the germ cell proteome during neonatal testis development.

Vesna A. Chappell, Jonathan T. Busada, Brett D. Keiper, and Christopher B. Geyer "Translational Activation of Developmental Messenger RNAs During Neonatal Mouse Testis Development," Biology of Reproduction 89(3), (7 August 2013). https://doi.org/10.1095/biolreprod.113.109819
Received: 3 April 2013; Accepted: 1 August 2013; Published: 7 August 2013
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