1
|
Zakharenko LP, Petrovskii DV, Bykov RA. The P-Element Has Not Significant Effect on the Drosophila simulans Viability. Mol Biol 2023. [DOI: 10.1134/s0026893323020231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
2
|
Alhadyian H, Shoaib D, Ward RE. Septate junction proteins are required for egg elongation and border cell migration during oogenesis in Drosophila. G3-GENES GENOMES GENETICS 2021; 11:6237887. [PMID: 33871584 PMCID: PMC8495938 DOI: 10.1093/g3journal/jkab127] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 03/09/2021] [Indexed: 11/16/2022]
Abstract
Protein components of the invertebrate occluding junction—known as the septate junction (SJ)—are required for morphogenetic developmental events during embryogenesis in Drosophila melanogaster. In order to determine whether SJ proteins are similarly required for morphogenesis during other developmental stages, we investigated the localization and requirement of four representative SJ proteins during oogenesis: Contactin, Macroglobulin complement-related, Neurexin IV, and Coracle. A number of morphogenetic processes occur during oogenesis, including egg elongation, formation of dorsal appendages, and border cell (BC) migration. We found that all four SJ proteins are expressed in egg chambers throughout oogenesis, with the highest and the most sustained levels in the follicular epithelium (FE). In the FE, SJ proteins localize along the lateral membrane during early and mid-oogenesis, but become enriched in an apical-lateral domain (the presumptive SJ) by stage 11. SJ protein relocalization requires the expression of other SJ proteins, as well as Rab5 and Rab11 like SJ biogenesis in the embryo. Knocking down the expression of these SJ proteins in follicle cells throughout oogenesis results in egg elongation defects and abnormal dorsal appendages. Similarly, reducing the expression of SJ genes in the BC cluster results in BC migration defects. Together, these results demonstrate an essential requirement for SJ genes in morphogenesis during oogenesis, and suggest that SJ proteins may have conserved functions in epithelial morphogenesis across developmental stages.
Collapse
Affiliation(s)
- Haifa Alhadyian
- Department of Molecular Biosciences, University of Kansas, Lawrence, Kansas 66045, USA
| | - Dania Shoaib
- Department of Molecular Biosciences, University of Kansas, Lawrence, Kansas 66045, USA
| | - Robert E Ward
- Department of Molecular Biosciences, University of Kansas, Lawrence, Kansas 66045, USA
| |
Collapse
|
3
|
Tatarinova TV, Tabikhanova LE, Eslami G, Bai H, Orlov YL. Genetics research at the "Centenary of human population genetics" conference and SBB-2019. BMC Genet 2020; 21:109. [PMID: 33092531 PMCID: PMC7580810 DOI: 10.1186/s12863-020-00906-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Tatiana V Tatarinova
- Department of Biology, University of La Verne, La Verne, CA, 91750, USA
- Department of Fundamental Biology and Biotechnology, Siberian Federal University, 660074, Krasnoyarsk, Russia
- N.I.Vavilov Institute of General Genetics RAS, 119991, Moscow, Russia
| | - Ludmila E Tabikhanova
- Institute of Cytology and Genetics SB RAS, 630090, Novosibirsk, Russia
- Novosibirsk State University, 630090, Novosibirsk, Russia
| | - Gilda Eslami
- Research Center for Food Hygiene and Safety, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, 8916188638, Iran
- Department of Parasitology and Mycology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, 8916188638, Iran
| | - Haihua Bai
- Inner Mongolia University for the Nationalities, 028000, Tongliao, China
| | - Yuriy L Orlov
- Institute of Cytology and Genetics SB RAS, 630090, Novosibirsk, Russia.
- Novosibirsk State University, 630090, Novosibirsk, Russia.
- The Digital Health Institute, I.M.Sechenov First Moscow State Medical University (Sechenov University), 119991, Moscow, Russia.
| |
Collapse
|
4
|
Ogienko AA, Andreyeva EN, Omelina ES, Oshchepkova AL, Pindyurin AV. Molecular and cytological analysis of widely-used Gal4 driver lines for Drosophila neurobiology. BMC Genet 2020; 21:96. [PMID: 33092520 PMCID: PMC7583314 DOI: 10.1186/s12863-020-00895-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 07/28/2020] [Indexed: 11/13/2022] Open
Abstract
Background The Drosophila central nervous system (CNS) is a convenient model system for the study of the molecular mechanisms of conserved neurobiological processes. The manipulation of gene activity in specific cell types and subtypes of the Drosophila CNS is frequently achieved by employing the binary Gal4/UAS system. However, many Gal4 driver lines available from the Bloomington Drosophila Stock Center (BDSC) and commonly used in Drosophila neurobiology are still not well characterized. Among these are three lines with Gal4 driven by the elav promoter (BDSC #8760, #8765, and #458), one line with Gal4 driven by the repo promoter (BDSC #7415), and the 69B-Gal4 line (BDSC #1774). For most of these lines, the exact insertion sites of the transgenes and the detailed expression patterns of Gal4 are not known. This study is aimed at filling these gaps. Results We have mapped the genomic location of the Gal4-bearing P-elements carried by the BDSC lines #8760, #8765, #458, #7415, and #1774. In addition, for each of these lines, we have analyzed the Gal4-driven GFP expression pattern in the third instar larval CNS and eye-antennal imaginal discs. Localizations of the endogenous Elav and Repo proteins were used as markers of neuronal and glial cells, respectively. Conclusions We provide a mini-atlas of the spatial activity of Gal4 drivers that are widely used for the expression of UAS–target genes in the Drosophila CNS. The data will be helpful for planning experiments with these drivers and for the correct interpretation of the results.
Collapse
Affiliation(s)
- Anna A Ogienko
- Institute of Molecular and Cellular Biology, Siberian Branch of RAS, Novosibirsk, 630090, Russia
| | - Evgeniya N Andreyeva
- Institute of Molecular and Cellular Biology, Siberian Branch of RAS, Novosibirsk, 630090, Russia
| | - Evgeniya S Omelina
- Institute of Molecular and Cellular Biology, Siberian Branch of RAS, Novosibirsk, 630090, Russia
| | - Anastasiya L Oshchepkova
- Institute of Molecular and Cellular Biology, Siberian Branch of RAS, Novosibirsk, 630090, Russia.,Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of RAS, Novosibirsk, 630090, Russia
| | - Alexey V Pindyurin
- Institute of Molecular and Cellular Biology, Siberian Branch of RAS, Novosibirsk, 630090, Russia. .,Novosibirsk State University, Novosibirsk, 630090, Russia.
| |
Collapse
|
5
|
Ogienko AA, Yarinich LA, Fedorova EV, Dorogova NV, Bayborodin SI, Baricheva EM, Pindyurin AV. GAGA Regulates Border Cell Migration in Drosophila. Int J Mol Sci 2020; 21:E7468. [PMID: 33050455 PMCID: PMC7589894 DOI: 10.3390/ijms21207468] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 09/30/2020] [Accepted: 10/07/2020] [Indexed: 12/13/2022] Open
Abstract
Collective cell migration is a complex process that happens during normal development of many multicellular organisms, as well as during oncological transformations. In Drosophila oogenesis, a small set of follicle cells originally located at the anterior tip of each egg chamber become motile and migrate as a cluster through nurse cells toward the oocyte. These specialized cells are referred to as border cells (BCs) and provide a simple and convenient model system to study collective cell migration. The process is known to be complexly regulated at different levels and the product of the slow border cells (slbo) gene, the C/EBP transcription factor, is one of the key elements in this process. However, little is known about the regulation of slbo expression. On the other hand, the ubiquitously expressed transcription factor GAGA, which is encoded by the Trithorax-like (Trl) gene was previously demonstrated to be important for Drosophila oogenesis. Here, we found that Trl mutations cause substantial defects in BC migration. Partially, these defects are explained by the reduced level of slbo expression in BCs. Additionally, a strong genetic interaction between Trl and slbo mutants, along with the presence of putative GAGA binding sites within the slbo promoter and enhancer, suggests the direct regulation of this gene by GAGA. This idea is supported by the reduction in the slbo-Gal4-driven GFP expression within BC clusters in Trl mutant background. However, the inability of slbo overexpression to compensate defects in BC migration caused by Trl mutations suggests that there are other GAGA target genes contributing to this process. Taken together, the results define GAGA as another important regulator of BC migration in Drosophila oogenesis.
Collapse
Affiliation(s)
- Anna A. Ogienko
- Department of the Regulation of Genetic Processes, Institute of Molecular and Cellular Biology of the Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia;
| | - Lyubov A. Yarinich
- Department of the Regulation of Genetic Processes, Institute of Molecular and Cellular Biology of the Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia;
- Faculty of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Elena V. Fedorova
- Department of Cell Biology, Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (E.V.F.); (N.V.D.); (S.I.B.); (E.M.B.)
| | - Natalya V. Dorogova
- Department of Cell Biology, Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (E.V.F.); (N.V.D.); (S.I.B.); (E.M.B.)
| | - Sergey I. Bayborodin
- Department of Cell Biology, Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (E.V.F.); (N.V.D.); (S.I.B.); (E.M.B.)
| | - Elina M. Baricheva
- Department of Cell Biology, Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (E.V.F.); (N.V.D.); (S.I.B.); (E.M.B.)
| | - Alexey V. Pindyurin
- Department of the Regulation of Genetic Processes, Institute of Molecular and Cellular Biology of the Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia;
| |
Collapse
|
6
|
Andreyeva EN, Ogienko AA, Yushkova AA, Popova JV, Pavlova GA, Kozhevnikova EN, Ivankin AV, Gatti M, Pindyurin AV. Non3 is an essential Drosophila gene required for proper nucleolus assembly. Vavilovskii Zhurnal Genet Selektsii 2019. [DOI: 10.18699/vj19.481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The nucleolus is a dynamic non-membrane-bound nuclear organelle, which plays key roles not only in ribosome biogenesis but also in many other cellular processes. Consistent with its multiple functions, the nucleolus has been implicated in many human diseases, including cancer and degenerative pathologies of the nervous system and heart. Here, we report the characterization of the Drosophila Non3 (Novel nucleolar protein 3) gene, which encodes a protein homologous to the human Brix domain-containing Rpf2 that has been shown to control ribosomal RNA (rRNA) processing. We used imprecise P-element excision to generate four new mutant alleles in the Non3 gene. Complementation and phenotypic analyses showed that these Non3 mutations can be arranged in an allelic series that includes both viable and lethal alleles. The strongest lethal allele (Non3∆600) is a genetically null allele that carries a large deletion of the gene and exhibits early lethality when homozygous. Flies heterozygous for Non3∆600 occasionally exhibit a mild reduction in the bristle size, but develop normally and are fertile. However, heteroallelic combinations of viable Non3 mutations (Non3197, Non3310 and Non3259) display a Minute-like phenotype, consisting in delayed development and short and thin bristles, suggesting that they are defective in ribosome biogenesis. We also demonstrate that the Non3 protein localizes to the nucleolus of larval brain cells and it is required for proper nucleolar localization of Fibrillarin, a protein important for post-translational modification and processing of rRNAs. In summary, we generated a number of genetic and biochemical tools that were exploited for an initial characterization of Non3, and will be instrumental for future functional studies on this gene and its protein product.
Collapse
Affiliation(s)
| | - A. A. Ogienko
- Institute of Molecular and Cellular Biology, SB RAS; Novosibirsk State University
| | - A. A. Yushkova
- Institute of Molecular and Cellular Biology, SB RAS; Novosibirsk State University
| | - J. V. Popova
- Institute of Molecular and Cellular Biology, SB RAS; Institute of Cytology and Genetics, SB RAS
| | | | - E. N. Kozhevnikova
- Institute of Molecular and Cellular Biology, SB RAS; Institute of Cytology and Genetics, SB RAS
| | | | - M. Gatti
- Institute of Molecular and Cellular Biology, SB RAS; IBPM CNR and Department of Biology and Biotechnology, Sapienza University of Rome
| | - A. V. Pindyurin
- Institute of Molecular and Cellular Biology, SB RAS; Novosibirsk State University; Institute of Cytology and Genetics, SB RAS
| |
Collapse
|