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TDRD5 Is Required for Spermatogenesis and Oogenesis in Locusta migratoria. INSECTS 2022; 13:insects13030227. [PMID: 35323525 PMCID: PMC8953433 DOI: 10.3390/insects13030227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 02/21/2022] [Accepted: 02/23/2022] [Indexed: 01/13/2023]
Abstract
Tudor family proteins exist in all eukaryotic organisms and play a role in many cellular processes by recognizing and binding to proteins with methylated arginine or lysine residues. TDRD5, a member of Tudor domain-containing proteins (TDRDs), has been implicated in the P-element-induced wimpy testis-interacting RNA (piRNA) pathway and germ cell development in some model species, but little is known about its function in other species. Therefore, we identified and characterized LmTDRD5, the TDRD5 ortholog in Locusta migratoria, a hemimetabolous pest. The LmTdrd5 gene has 19 exons that encode a protein possessing a single copy of the Tudor domain and three LOTUS domains at its N-terminus. qRT-PCR analysis revealed a high LmTdrd5 expression level in genital glands. Using RNA interference, LmTdrd5 knockdown in males led to a lag in meiosis phase transition, decreased spermatid elongation and sperm production, and downregulated the expression of the two germ cell-specific transcription factors, LmCREM and LmACT, as well as the sperm tail marker gene LmQrich2.LmTdrd5 knockdown in females reduced the expression levels of vitellogenin (Vg) and Vg receptor (VgR) and impaired ovarian development and oocyte maturation, thus decreasing the hatchability rate. These results demonstrate that LmTdrd5 is essential for germ cell development and fertility in locusts, indicating a conserved function for TDRD5.
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Hafidh S, Potěšil D, Müller K, Fíla J, Michailidis C, Herrmannová A, Feciková J, Ischebeck T, Valášek LS, Zdráhal Z, Honys D. Dynamics of the Pollen Sequestrome Defined by Subcellular Coupled Omics. PLANT PHYSIOLOGY 2018; 178:258-282. [PMID: 30007911 PMCID: PMC6130014 DOI: 10.1104/pp.18.00648] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 06/27/2018] [Indexed: 05/19/2023]
Abstract
Reproduction success in angiosperm plants depends on robust pollen tube growth through the female pistil tissues to ensure successful fertilization. Accordingly, there is an apparent evolutionary trend to accumulate significant reserves during pollen maturation, including a population of stored mRNAs, that are utilized later for a massive translation of various proteins in growing pollen tubes. Here, we performed a thorough transcriptomic and proteomic analysis of stored and translated transcripts in three subcellular compartments of tobacco (Nicotiana tabacum), long-term storage EDTA/puromycin-resistant particles, translating polysomes, and free ribonuclear particles, throughout tobacco pollen development and in in vitro-growing pollen tubes. We demonstrated that the composition of the aforementioned complexes is not rigid and that numerous transcripts were redistributed among these complexes during pollen development, which may represent an important mechanism of translational regulation. Therefore, we defined the pollen sequestrome as a distinct and highly dynamic compartment for the storage of stable, translationally repressed transcripts and demonstrated its dynamics. We propose that EDTA/puromycin-resistant particle complexes represent aggregated nontranslating monosomes as the primary mediators of messenger RNA sequestration. Such organization is extremely useful in fast tip-growing pollen tubes, where rapid and orchestrated protein synthesis must take place in specific regions.
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Affiliation(s)
- Said Hafidh
- Laboratory of Pollen Biology, Institute of Experimental Botany of the Czech Academy of Sciences, 165 00 Prague 6, Czech Republic
| | - David Potěšil
- Central European Institute of Technology, Masaryk University, 625 00 Brno, Czech Republic
- Laboratory of Functional Genomics and Proteomics, National Centre for Biomolecular Research, Faculty of Science, Masaryk University, 625 00 Brno, Czech Republic
| | - Karel Müller
- Laboratory of Hormonal Regulations in Plants, Institute of Experimental Botany of the Czech Academy of Sciences, 165 00 Prague 6, Czech Republic
| | - Jan Fíla
- Laboratory of Pollen Biology, Institute of Experimental Botany of the Czech Academy of Sciences, 165 00 Prague 6, Czech Republic
| | - Christos Michailidis
- Laboratory of Pollen Biology, Institute of Experimental Botany of the Czech Academy of Sciences, 165 00 Prague 6, Czech Republic
| | - Anna Herrmannová
- Laboratory of Regulation of Gene Expression, Institute of Microbiology of the Czech Academy of Sciences, 142 20 Prague 4, Czech Republic
| | - Jana Feciková
- Laboratory of Pollen Biology, Institute of Experimental Botany of the Czech Academy of Sciences, 165 00 Prague 6, Czech Republic
| | - Till Ischebeck
- Department of Plant Biochemistry, Albrecht-von-Haller Institute for Plant Sciences, University of Goettingen, 37077 Goettingen, Germany
| | - Leoš Shivaya Valášek
- Laboratory of Regulation of Gene Expression, Institute of Microbiology of the Czech Academy of Sciences, 142 20 Prague 4, Czech Republic
| | - Zbyněk Zdráhal
- Central European Institute of Technology, Masaryk University, 625 00 Brno, Czech Republic
- Laboratory of Functional Genomics and Proteomics, National Centre for Biomolecular Research, Faculty of Science, Masaryk University, 625 00 Brno, Czech Republic
| | - David Honys
- Laboratory of Pollen Biology, Institute of Experimental Botany of the Czech Academy of Sciences, 165 00 Prague 6, Czech Republic
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Gutiérrez-Beltran E, Bozhkov PV, Moschou PN. Tudor Staphylococcal Nuclease plays two antagonistic roles in RNA metabolism under stress. PLANT SIGNALING & BEHAVIOR 2015; 10:e1071005. [PMID: 26237081 PMCID: PMC4883894 DOI: 10.1080/15592324.2015.1071005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Adaptation to stress entails a repertoire of molecular pathways that remodel the proteome, thereby promoting selective translation of pro-survival proteins. Yet, translation of other proteins, especially those which are harmful for stress adaptation is, on the contrary, transiently suppressed through mRNA decay or storage. Proteome remodeling under stress is intimately associated with the cytoplasmic ribonucleoprotein (RNP) complexes called stress granules (SGs) and processing bodies (PBs). The molecular composition and regulation of SGs and PBs in plants remain largely unknown. Recently, we identified the Arabidopsis Tudor Staphylococcal Nuclease (TSN, Tudor-SN or SND1) as a SG- and PB-associated protein required for mRNA decapping under stress conditions. Here we show that SGs localize in close proximity to PBs within plant cells that enable the exchange of molecular components. Furthermore, we provide a meta-analysis of mRNA degradome of TSN-deficient plants suggesting that TSN might inhibit the degradation of mRNAs which are involved in stress adaptation. Our results establish TSN as a versatile mRNA regulator during stress.
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Affiliation(s)
- Emilio Gutiérrez-Beltran
- Department of Plant Biology and Department of Chemistry and Biotechnology; Uppsala BioCenter; Swedish University of Agricultural Sciences and Linnean Center for Plant Biology; Uppsala, Sweden
- Correspondence to: Emilio Gutiérrez-Beltran;
| | - Peter V Bozhkov
- Department of Plant Biology and Department of Chemistry and Biotechnology; Uppsala BioCenter; Swedish University of Agricultural Sciences and Linnean Center for Plant Biology; Uppsala, Sweden
| | - Panagiotis N Moschou
- Department of Plant Biology and Department of Chemistry and Biotechnology; Uppsala BioCenter; Swedish University of Agricultural Sciences and Linnean Center for Plant Biology; Uppsala, Sweden
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