PUBLICATION
Linking Maternal and Somatic 5S rRNA types with Different Sequence-Specific Non-LTR Retrotransposons
- Authors
- Locati, M.D., Pagano, J.F., Ensink, W.A., van Olst, M., van Leeuwen, S., Nehrdich, U., Zhu, K., Spaink, H.P., Girard, G., Rauwerda, H., Jonker, M.J., Dekker, R.J., Breit, T.M.
- ID
- ZDB-PUB-161224-21
- Date
- 2017
- Source
- RNA (New York, N.Y.) 23(4): 446-456 (Journal)
- Registered Authors
- Spaink, Herman P.
- Keywords
- 5S ribosomal RNA, embryogenesis, maternal rRNA, target-specific retrotransposons, zebrafish
- MeSH Terms
-
- Animals
- Chromosome Mapping
- Chromosomes/chemistry
- Embryo, Nonmammalian
- Embryonic Development/genetics
- Female
- High-Throughput Nucleotide Sequencing
- Male
- Maternal Inheritance*
- Oogenesis/genetics
- RNA, Ribosomal, 5S/classification
- RNA, Ribosomal, 5S/genetics*
- RNA, Ribosomal, 5S/metabolism
- Retroelements*
- Terminal Repeat Sequences
- Zebrafish/genetics*
- Zebrafish/growth & development
- Zebrafish/metabolism
- Zygote/growth & development
- Zygote/metabolism
- PubMed
- 28003516 Full text @ RNA
Citation
Locati, M.D., Pagano, J.F., Ensink, W.A., van Olst, M., van Leeuwen, S., Nehrdich, U., Zhu, K., Spaink, H.P., Girard, G., Rauwerda, H., Jonker, M.J., Dekker, R.J., Breit, T.M. (2017) Linking Maternal and Somatic 5S rRNA types with Different Sequence-Specific Non-LTR Retrotransposons. RNA (New York, N.Y.). 23(4):446-456.
Abstract
5S rRNA is a ribosomal core component, transcribed from many gene copies organized in genomic repeats. Some eukaryotic species have two 5S rRNA types defined by their predominant expression in oogenesis or adult tissue. Our next-generation sequencing study on zebrafish egg, embryo and adult tissue, identified maternal-type 5S rRNA that is exclusively accumulated during oogenesis, replaced throughout the embryogenesis by a somatic-type, and thus virtually absent in adult somatic tissue. The maternal-type 5S rDNA contains several thousands of gene copies on chromosome 4 in tandem repeats with small intergenic regions, whereas the somatic-type is present in only 12 gene copies on chromosome 18 with large intergenic regions. The nine-nucleotide variation between the two 5S rRNA types likely affects TFIII binding and riboprotein L5 binding, likely leading to storage of maternal-type rRNA. Remarkably, these sequence differences are located exactly at the sequence-specific target-site for genome integration by the 5S rRNA-specific Mutsu retrotransposon family. Thus, we could define maternal- and somatic-type MutsuDr subfamilies. Furthermore, we identified four additional maternal-type and two new somatic-type MutsuDr subfamilies, each with their own target sequence. This target-site specificity, frequently intact maternal-type retrotransposon elements, plus specific presence of Mutsu retrotransposon RNA and piRNA in egg and adult tissue, suggest an involvement of retrotransposons in achieving the differential copy number of the two types of 5S rDNA loci.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping