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Induced androgenetic development in rainbow trout and transcriptome analysis of irradiated eggs.
- Source :
-
Scientific reports [Sci Rep] 2019 May 30; Vol. 9 (1), pp. 8084. Date of Electronic Publication: 2019 May 30. - Publication Year :
- 2019
-
Abstract
- Ionizing radiation is administered to damage nuclear genome in fish eggs during induced androgenesis. In this study, we examined whether 350 Gy of X-ray applied to damage chromosomes in the rainbow trout eggs affects maternal RNA. Shortly after irradiation, we did not find any symptoms of RNA degradation in the treated eggs. Significant (p < 0.01) differences between non-irradiated and irradiated eggs concerned only a few transcripts including increased expression of immediate early response 2 (IER2) and early growth response 1 (EGR1) genes observed in the irradiated eggs. Both genes belong to the group of "immediate early genes" that respond quickly to the diverse extracellular stimuli. Elevated expression of these genes was accompanied by decreased level of ssa-miR-10b-5p and ssa-miR-21b-5p (p < 0.05), for which IER2 and EGR1 are target genes. The level of RNA in the fertilized irradiated eggs was highly significantly lower than in the non-irradiated eggs (p < 0.001) and in the unfertilized irradiated eggs (p < 0.0001). However, transcriptome profiles of fertilized non-irradiated eggs and fertilized irradiated eggs did not differ significantly. Thus, we assume that reduced abundance of mRNA in the fertilized irradiated eggs was associated with post-translational degradation and clearance of the maternal transcripts rather than from the irradiation of eggs.
- Subjects :
- Animals
Cell Nucleus genetics
Cell Nucleus radiation effects
Female
Gene Expression Profiling
Genes, Immediate-Early radiation effects
Haploidy
Male
Oncorhynchus mykiss growth & development
Ovum cytology
Ovum metabolism
RNA Stability radiation effects
RNA, Messenger, Stored metabolism
RNA, Messenger, Stored radiation effects
Transcriptome radiation effects
Aquaculture methods
Gene Expression Regulation, Developmental radiation effects
Oncorhynchus mykiss genetics
Ovum radiation effects
Paternal Inheritance radiation effects
Radiation, Ionizing
Subjects
Details
- Language :
- English
- ISSN :
- 2045-2322
- Volume :
- 9
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Scientific reports
- Publication Type :
- Academic Journal
- Accession number :
- 31147623
- Full Text :
- https://doi.org/10.1038/s41598-019-44568-7