Development Genes and Evolution最新文献

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Transphyletic conservation of nitric oxide synthase regulation in cephalochordates and tunicates. 头脊索类和被囊类动物一氧化氮合酶调节的转体保护。
IF 2.4 3区 生物学
Development Genes and Evolution Pub Date : 2020-11-01 Epub Date: 2020-08-24 DOI: 10.1007/s00427-020-00668-3
Filomena Caccavale, Ugo Coppola, Quirino A Vassalli, Claudia La Vecchia, Anna Palumbo, Enrico D'Aniello, Annamaria Locascio, Filomena Ristoratore, Salvatore D'Aniello
{"title":"Transphyletic conservation of nitric oxide synthase regulation in cephalochordates and tunicates.","authors":"Filomena Caccavale,&nbsp;Ugo Coppola,&nbsp;Quirino A Vassalli,&nbsp;Claudia La Vecchia,&nbsp;Anna Palumbo,&nbsp;Enrico D'Aniello,&nbsp;Annamaria Locascio,&nbsp;Filomena Ristoratore,&nbsp;Salvatore D'Aniello","doi":"10.1007/s00427-020-00668-3","DOIUrl":"https://doi.org/10.1007/s00427-020-00668-3","url":null,"abstract":"<p><p>Nitric oxide synthase is ubiquitously present in metazoans and is involved in a wide range of biological processes. Three distinct Nos genes have been so far identified in vertebrates exhibiting a complex expression pattern and transcriptional regulation. Nevertheless, although independent events of Nos duplication have been observed in several taxa, only few studies described the regulatory mechanisms responsible for their activation in non-vertebrate animals. To shed light on the mechanisms underlying neuronal-type Nos expression, we focused on two non-vertebrate chordates: the cephalochordate Branchiostoma lanceolatum and the tunicate Ciona robusta. Here, throughout transphyletic and transgenic approaches, we identified genomic regions in both species acting as Nos functional enhancers during development. In vivo analyses of Nos genomic fragments revealed their ability to recapitulate the endogenous expression territories. Therefore, our results suggest the existence of evolutionary conserved mechanisms responsible for neuronal-type Nos regulation in non-vertebrate chordates. In conclusion, this study paves the way for future characterization of conserved transcriptional logic underlying the expression of neuronal-type Nos genes in chordates.</p>","PeriodicalId":50588,"journal":{"name":"Development Genes and Evolution","volume":"230 5-6","pages":"329-338"},"PeriodicalIF":2.4,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00427-020-00668-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38304685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Mouth opening is mediated by separation of dorsal and ventral daughter cells of the lip precursor cells in the larvacean, Oikopleura dioica. 幼鱼(Oikopleura dioica)的张嘴是由唇前体细胞的背侧和腹侧子细胞分离介导的。
IF 2.4 3区 生物学
Development Genes and Evolution Pub Date : 2020-11-01 Epub Date: 2020-08-15 DOI: 10.1007/s00427-020-00667-4
Ryo Morita, Takeshi A Onuma, Lucia Manni, Nobuhiko Ohno, Hiroki Nishida
{"title":"Mouth opening is mediated by separation of dorsal and ventral daughter cells of the lip precursor cells in the larvacean, Oikopleura dioica.","authors":"Ryo Morita,&nbsp;Takeshi A Onuma,&nbsp;Lucia Manni,&nbsp;Nobuhiko Ohno,&nbsp;Hiroki Nishida","doi":"10.1007/s00427-020-00667-4","DOIUrl":"https://doi.org/10.1007/s00427-020-00667-4","url":null,"abstract":"<p><p>Mouth formation involves the processes of mouth opening, formation of the oral cavity, and the development of associated sensory organs. In deuterostomes, the surface ectoderm and the anterior part of the archenteron are reconfigured and reconnected to make a mouth opening. This study of the larval development of the larvacean, Oikopleura dioica, investigates the cellular organization of the oral region, the developmental processes of the mouth, and the formation of associated sensory cells. O. dioica is a simple chordate whose larvae are transparent and have a small number of constituent cells. It completes organ morphogenesis in 7 h, between hatching 3 h after fertilization and the juvenile stage at 10 h, when it attains adult form and starts to feed. It has two types of mechanosensory cell embedded in the oral epithelium, which is a single layer of cells. There are twenty coronal sensory cells in the circumoral nerve ring and two dorsal sensory organ cells. Two bilateral lip precursor cells (LPCs), facing the anterior surface, divide dorsoventrally and make a wedge-shaped cleft between the two daughter cells named the dorsal lip cell (DLC) and the ventral lip cell (VLC). Eventually, the DLC and VLC become detached and separated into dorsal and ventral lips, triggering mouth opening. This is an intriguing example of cell division itself contributing to morphogenesis. The boundary between the ectoderm and endoderm is present between the lip cells and coronal sensory cells. All oral sensory cells, including dorsal sensory organ cells, were of endodermal origin and were not derived from the ectodermal placode. These observations on mouth formation provide a cellular basis for further studies at a molecular level, in this simple chordate.</p>","PeriodicalId":50588,"journal":{"name":"Development Genes and Evolution","volume":"230 5-6","pages":"315-327"},"PeriodicalIF":2.4,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00427-020-00667-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38270474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Evolutionary conservation of opsin gene expression patterns in the compound eyes of darkling beetles. 暗甲虫复眼视蛋白基因表达模式的进化保护。
IF 2.4 3区 生物学
Development Genes and Evolution Pub Date : 2020-11-01 Epub Date: 2020-10-02 DOI: 10.1007/s00427-020-00669-2
Meng Wu, Riyue Bao, Markus Friedrich
{"title":"Evolutionary conservation of opsin gene expression patterns in the compound eyes of darkling beetles.","authors":"Meng Wu,&nbsp;Riyue Bao,&nbsp;Markus Friedrich","doi":"10.1007/s00427-020-00669-2","DOIUrl":"https://doi.org/10.1007/s00427-020-00669-2","url":null,"abstract":"<p><p>Recent large-scale studies of opsin gene contents in representatives of the largest order of insects, the Coleoptera (beetles), revealed that the blue wavelength-sensitive (B) opsin subfamily is absent in this clade, while the ultraviolet- (UV) and long wavelength-sensitive (LW) opsin subfamilies are broadly conserved with gene duplications possibly reintroducing blue sensitivity in select subclades. Little is known yet, however, how opsin genes are expressed in the compound eyes of beetles. In a previous study, we analyzed opsin gene expression in the red flour beetle Tribolium castaneum, a member of the family of darkling beetles (Tenebrionidae), and found that a singleton LW opsin homolog is homogeneously expressed in all photoreceptors of the compound eye retina with a singleton UV opsin homolog being co-expressed in the R7 subtype photoreceptors. To probe for the evolutionary conservation of these expression patterns, we isolated complete opsin transcript sequences from three additional species in the subfamily Tenebrionidae (Tribolium confusum, Tenebrio molitor, Zophobas morio) and studied their expression via whole mount in situ hybridization in the pupal retina. These experiments revealed very similar, if not identical, photoreceptor subtype-specific expression patterns in all three species compared with T. castaneum. Documenting a deep conservation of photoreceptor subtype-specific opsin gene expression in this range of darkling beetles, our study provides a first point of reference for broader comparative studies of retinal organization in the Coleoptera.</p>","PeriodicalId":50588,"journal":{"name":"Development Genes and Evolution","volume":"230 5-6","pages":"339-345"},"PeriodicalIF":2.4,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00427-020-00669-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38446718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
A novel protein upstream stimulatory factor 2 identified in lamprey, Lethenteron reissneri. 一个新的上游刺激因子2蛋白在七鳃鳗中鉴定。
IF 2.4 3区 生物学
Development Genes and Evolution Pub Date : 2020-11-01 Epub Date: 2020-08-27 DOI: 10.1007/s00427-020-00666-5
Yuxuan Guo, Tiesong Li, Qingwei Li, Yue Pang, Peng Su
{"title":"A novel protein upstream stimulatory factor 2 identified in lamprey, Lethenteron reissneri.","authors":"Yuxuan Guo,&nbsp;Tiesong Li,&nbsp;Qingwei Li,&nbsp;Yue Pang,&nbsp;Peng Su","doi":"10.1007/s00427-020-00666-5","DOIUrl":"https://doi.org/10.1007/s00427-020-00666-5","url":null,"abstract":"<p><p>Upstream stimulatory factors are kinds of multi-functional transcription factors, which are expressed in eukaryotes widely, including Upstream stimulatory factor 1 (USFl) and upstream stimulatory factor 2 (USF2). USF protein has a typical basic helix-loop-helix leucine zipper (b-HLH-LZ) structure, which is involved in cell cycle, cell proliferations, glucose and lipid metabolism, and other biochemical processes. Although the USF family is an important regulator of cellular processes, little is known about the USF genes of lampreys, especially their evolutionary relationships, expression profiles, and biological functions. Here, an upstream stimulatory factor 2 (USF2) homolog from lamprey (Lethenteron reissneri) was identified and characterized (designated as L-USF2) because it is closer to USF2 subfamily than to USF1 subfamily. The cDNA fragment of L-USF2 has an open reading frame (ORF) of 765-bp length, encodes 254 amino acids, and contains an HLH domain at the c-terminal of amino acids. Meanwhile, motifs and genetic structure analysis reveal that USF2 gene exons are conserved. Moreover, the 3D structure analysis indicates that L-USF2 adopts the general USF2 folding and has a high structural similarity with H-USF2. The synteny results showed that the L-USF2 adjacent gene changed greatly compared with the jaw vertebrates. By real-time quantitative experiment and Western blot analysis, we found that L-USF2 gene played a significant role in the immune responses. This study not only provides us with a further understanding of the evolution and function of the USF gene family but also provides a basis for exploring its immune responses and immune defenses in lampreys.</p>","PeriodicalId":50588,"journal":{"name":"Development Genes and Evolution","volume":"230 5-6","pages":"347-357"},"PeriodicalIF":2.4,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00427-020-00666-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38412060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Gene expression analysis of three homeobox genes throughout early and late development of a feather star Anneissia japonica. 羽毛星 Anneissia japonica 早期和晚期发育过程中三个同源基因的基因表达分析
IF 2.4 3区 生物学
Development Genes and Evolution Pub Date : 2020-07-01 Epub Date: 2020-07-15 DOI: 10.1007/s00427-020-00665-6
Akihito Omori, Tomoko F Shibata, Koji Akasaka
{"title":"Gene expression analysis of three homeobox genes throughout early and late development of a feather star Anneissia japonica.","authors":"Akihito Omori, Tomoko F Shibata, Koji Akasaka","doi":"10.1007/s00427-020-00665-6","DOIUrl":"10.1007/s00427-020-00665-6","url":null,"abstract":"<p><p>Crinoids are considered as the most basal extant echinoderms. They retain aboral nervous system with a nerve center, which has been degraded in the eleutherozoan echinoderms. To investigate the evolution of patterning of the nervous systems in crinoids, we examined temporal and spatial expression patterns of three neural patterning-related homeobox genes, six3, pax6, and otx, throughout the development of a feather star Anneissia japonica. These genes were involved in the patterning of endomesodermal tissues instead of the ectodermal neural tissues in the early planktonic stages. In the stages after larval attachment, the expression of these genes was mainly observed in the podia and the oral nervous systems instead of the aboral nerve center. Our results indicate the involvement of these three genes in the formation of oral nervous system in the common ancestor of the echinoderms and suggest that the aboral nerve center is not evolutionally related to the brain of other bilaterians.</p>","PeriodicalId":50588,"journal":{"name":"Development Genes and Evolution","volume":"230 4","pages":"305-314"},"PeriodicalIF":2.4,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00427-020-00665-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38165569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Towards reconstructing the dipteran demise of an ancient essential gene: E3 ubiquitin ligase Murine double minute. 重建一个古老的必要基因:E3泛素连接酶小鼠双分钟的双翅目消亡。
IF 2.4 3区 生物学
Development Genes and Evolution Pub Date : 2020-07-01 Epub Date: 2020-07-04 DOI: 10.1007/s00427-020-00663-8
Naveen Jasti, Dylan Sebagh, Mohammed Riaz, Xin Wang, Bharat Koripella, Vasanth Palanisamy, Nabeel Mohammad, Qing Chen, Markus Friedrich
{"title":"Towards reconstructing the dipteran demise of an ancient essential gene: E3 ubiquitin ligase Murine double minute.","authors":"Naveen Jasti,&nbsp;Dylan Sebagh,&nbsp;Mohammed Riaz,&nbsp;Xin Wang,&nbsp;Bharat Koripella,&nbsp;Vasanth Palanisamy,&nbsp;Nabeel Mohammad,&nbsp;Qing Chen,&nbsp;Markus Friedrich","doi":"10.1007/s00427-020-00663-8","DOIUrl":"https://doi.org/10.1007/s00427-020-00663-8","url":null,"abstract":"<p><p>Genome studies have uncovered many examples of essential gene loss, raising the question of how ancient genes transition from essentiality to dispensability. We explored this process for the deeply conserved E3 ubiquitin ligase Murine double minute (Mdm), which is lacking in Drosophila despite the conservation of its main regulatory target, the cellular stress response gene p53. Conducting gene expression and knockdown experiments in the red flour beetle Tribolium castaneum, we found evidence that Mdm has remained essential in insects where it is present. Using bioinformatics approaches, we confirm the absence of the Mdm gene family in Drosophila, mapping its loss to the stem lineage of schizophoran Diptera and Pipunculidae (big-headed flies), about 95-85 million years ago. Intriguingly, this gene loss event was preceded by the de novo origin of the gene Companion of reaper (Corp), a novel p53 regulatory factor that is characterized by functional similarities to vertebrate Mdm2 despite lacking E3 ubiquitin ligase protein domains. Speaking against a 1:1 compensatory gene gain/loss scenario, however, we found that hoverflies (Syrphidae) and pointed-wing flies (Lonchopteridae) possess both Mdm and Corp. This implies that the two p53 regulators have been coexisting for ~ 150 million years in select dipteran clades and for at least 50 million years in the lineage to Schizophora and Pipunculidae. Given these extensive time spans of Mdm/Corp coexistence, we speculate that the loss of Mdm in the lineage to Drosophila involved further acquisitions of compensatory gene activities besides the emergence of Corp. Combined with the previously noted reduction of an ancestral P53 contact domain in the Mdm homologs of crustaceans and insects, we conclude that the loss of the ancient Mdm gene family in flies was the outcome of incremental functional regression over long macroevolutionary time scales.</p>","PeriodicalId":50588,"journal":{"name":"Development Genes and Evolution","volume":"230 4","pages":"279-294"},"PeriodicalIF":2.4,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00427-020-00663-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38124024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
The EJC component Magoh in non-vertebrate chordates. 非脊椎动物脊索动物的EJC成分Magoh。
IF 2.4 3区 生物学
Development Genes and Evolution Pub Date : 2020-07-01 Epub Date: 2020-07-06 DOI: 10.1007/s00427-020-00664-7
Rosa Maria Sepe, Jung Hee Levialdi Ghiron, Ivana Zucchetti, Luigi Caputi, Raffaella Tarallo, Fabio Crocetta, Rosaria De Santis, Salvatore D'Aniello, Paolo Sordino
{"title":"The EJC component Magoh in non-vertebrate chordates.","authors":"Rosa Maria Sepe,&nbsp;Jung Hee Levialdi Ghiron,&nbsp;Ivana Zucchetti,&nbsp;Luigi Caputi,&nbsp;Raffaella Tarallo,&nbsp;Fabio Crocetta,&nbsp;Rosaria De Santis,&nbsp;Salvatore D'Aniello,&nbsp;Paolo Sordino","doi":"10.1007/s00427-020-00664-7","DOIUrl":"https://doi.org/10.1007/s00427-020-00664-7","url":null,"abstract":"<p><p>Earliest craniates possess a newly enlarged, elaborated forebrain with new cell types and neuronal networks. A key question in vertebrate evolution is when and how this cerebral expansion took place. The exon-junction complex (EJC) plays an essential role in mRNA processing of all Eukarya. Recently, it has been proposed that the EJC represses recursive RNA splicing in Deuterostomes, with implication in human brain diseases like microcephaly and depression. However, the EJC or EJC subunit contribution to brain development in non-vertebrate Deuterostomes remained unknown. Being interested in the evolution of chordate characters, we focused on the model species, Branchiostoma lanceolatum (Cephalochordata) and Ciona robusta (Tunicata), with the aim to investigate the ancestral and the derived expression state of Magoh orthologous genes. This study identifies that Magoh is part of a conserved syntenic group exclusively in vertebrates and suggests that Magoh has experienced duplication and loss events in mammals. During early development in amphioxus and ascidian, maternal contribution and zygotic expression of Magoh genes in various types of progenitor cells and tissues are consistent with the condition observed in other Bilateria. Later in development, we also show expression of Magoh in the brain of cephalochordate and ascidian larvae. Collectively, these results provide a basis to further define what functional role(s) Magoh exerted during nervous system development and evolution.</p>","PeriodicalId":50588,"journal":{"name":"Development Genes and Evolution","volume":"230 4","pages":"295-304"},"PeriodicalIF":2.4,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00427-020-00664-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38131487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multilevel regulation of muscle-specific transcription factor hlh-1 during Caenorhabditis elegans embryogenesis. 草履虫胚胎发育过程中肌肉特异性转录因子 hlh-1 的多级调控
IF 2.4 3区 生物学
Development Genes and Evolution Pub Date : 2020-07-01 Epub Date: 2020-06-19 DOI: 10.1007/s00427-020-00662-9
Guoye Guan, Meichen Fang, Ming-Kin Wong, Vincy Wing Sze Ho, Xiaomeng An, Chao Tang, Xiaotai Huang, Zhongying Zhao
{"title":"Multilevel regulation of muscle-specific transcription factor hlh-1 during Caenorhabditis elegans embryogenesis.","authors":"Guoye Guan, Meichen Fang, Ming-Kin Wong, Vincy Wing Sze Ho, Xiaomeng An, Chao Tang, Xiaotai Huang, Zhongying Zhao","doi":"10.1007/s00427-020-00662-9","DOIUrl":"10.1007/s00427-020-00662-9","url":null,"abstract":"<p><p>hlh-1 is a myogenic transcription factor required for body-wall muscle specification during embryogenesis in Caenorhabditis elegans. Despite its well-known role in muscle specification, comprehensive regulatory control upstream of hlh-1 remains poorly defined. Here, we first established a statistical reference for the spatiotemporal expression of hlh-1 at single-cell resolution up to the second last round of divisions for most of the cell lineages (from 4- to 350-cell stage) using 13 wild-type embryos. We next generated lineal expression of hlh-1 after RNA interference (RNAi) perturbation of 65 genes, which were selected based on their degree of conservation, mutant phenotypes, and known roles in development. We then compared the expression profiles between wild-type and RNAi embryos by clustering according to their lineal expression patterns using mean-shift and density-based clustering algorithms, which not only confirmed the roles of existing genes but also uncovered the potential functions of novel genes in muscle specification at multiple levels, including cellular, lineal, and embryonic levels. By combining the public data on protein-protein interactions, protein-DNA interactions, and genetic interactions with our RNAi data, we inferred regulatory pathways upstream of hlh-1 that function globally or locally. This work not only revealed diverse and multilevel regulatory mechanisms coordinating muscle differentiation during C. elegans embryogenesis but also laid a foundation for further characterizing the regulatory pathways controlling muscle specification at the cellular, lineal (local), or embryonic (global) level.</p>","PeriodicalId":50588,"journal":{"name":"Development Genes and Evolution","volume":"230 4","pages":"265-278"},"PeriodicalIF":2.4,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7371654/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38059791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Screening for CRISPR/Cas9-induced mutations using a co-injection marker in the nematode Pristionchus pacificus. 利用线虫 Pristionchus pacificus 中的共注射标记筛选 CRISPR/Cas9 诱导的突变。
IF 2.4 3区 生物学
Development Genes and Evolution Pub Date : 2020-05-01 Epub Date: 2020-02-06 DOI: 10.1007/s00427-020-00651-y
Ken-Ichi Nakayama, Yuuki Ishita, Takahiro Chihara, Misako Okumura
{"title":"Screening for CRISPR/Cas9-induced mutations using a co-injection marker in the nematode Pristionchus pacificus.","authors":"Ken-Ichi Nakayama, Yuuki Ishita, Takahiro Chihara, Misako Okumura","doi":"10.1007/s00427-020-00651-y","DOIUrl":"10.1007/s00427-020-00651-y","url":null,"abstract":"<p><p>CRISPR/Cas9 genome-editing methods are used to reveal functions of genes and molecular mechanisms underlying biological processes in many species, including nematodes. In evolutionary biology, the nematode Pristionchus pacificus is a satellite model and has been used to understand interesting phenomena such as phenotypic plasticity and self-recognition. In P. pacificus, CRISPR/Cas9-mediated mutations are induced by microinjecting a guide RNA (gRNA) and Cas9 protein into the gonads. However, mutant screening is laborious and time-consuming due to the absence of visual markers. In this study, we established a Co-CRISPR strategy by using a dominant roller marker in P. pacificus. We found that heterozygous mutations in Ppa-prl-1 induced the roller phenotype, which can be used as an injection marker. After the co-injection of Ppa-prl-1 gRNA, target gRNA, and the Cas9 protein, roller progeny and their siblings were examined using the heteroduplex mobility assay and DNA sequencing. We found that some of the roller and non-roller siblings had mutations at the target site. We used varying Cas9 concentrations and found that a higher concentration of Cas9 did not increase genome-editing events. The Co-CRISPR strategy promotes the screening for genome-editing events and will facilitate the development of new genome-editing methods in P. pacificus.</p>","PeriodicalId":50588,"journal":{"name":"Development Genes and Evolution","volume":"230 3","pages":"257-264"},"PeriodicalIF":2.4,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00427-020-00651-y","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"37620212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 18
What lies beneath: Hydra provides cnidarian perspectives into the evolution of FGFR docking proteins. 背后是什么:Hydra为FGFR对接蛋白的进化提供了刺胞动物的视角。
IF 2.4 3区 生物学
Development Genes and Evolution Pub Date : 2020-05-01 Epub Date: 2020-03-20 DOI: 10.1007/s00427-020-00659-4
Ashwini Suryawanshi, Karolin Schaefer, Oliver Holz, David Apel, Ellen Lange, David C Hayward, David J Miller, Monika Hassel
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引用次数: 4
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