Danfeng Tang, Fan Wei, Zhongquan Cai, Yanyan Wei, Aziz Khan, Jianhua Miao, Kunhua Wei
{"title":"Analysis of codon usage bias and evolution in the chloroplast genome of Mesona chinensis Benth.","authors":"Danfeng Tang, Fan Wei, Zhongquan Cai, Yanyan Wei, Aziz Khan, Jianhua Miao, Kunhua Wei","doi":"10.1007/s00427-020-00670-9","DOIUrl":"https://doi.org/10.1007/s00427-020-00670-9","url":null,"abstract":"<p><p>Mesona chinensis Benth (MCB) is one of the main economic crops in tropical and subtropical areas. To understand the codon usage bias (CUB) in M. chinensis Benth, chloroplast genome is essential to study its genetic law, molecular phylogenetic relationships, and exogenous gene expression. Results showed that the GC content of 53 CDS sequences was 37.95%, and GC1, GC2, and GC3 content were 46.02%, 38.26%, and 29.85%, respectively. The general GC content order was GC1>GC2>GC3. Moreover, the majority of genes had an effective number of codon (ENC) value greater than 40, except ndhE, rps8, and rps18. Correlation analysis results revealed that the GC content was significantly correlated with GC1, GC2, GC3, and ENC. Neutrality plot analysis, ENC-plot analysis, and PR2-plot analysis presented that the CUB of M. chinensis Benth chloroplast genome was mainly affected by mutation and selection. In addition, GGG, GCA, and TCC were found to be the optimal codons. Furthermore, results of cluster analysis and evolutionary tree showed that M. chinensis Benth was closely related to Ocimum basilicum, indicating that there was a certain correlation between the CUB of the chloroplast gene and the genetic relationship of plant species. Overall, the study on the CUB of chloroplast genome laid a basis for genetic modification and phylogenetic research of M. chinensis Benth chloroplast genome.</p>","PeriodicalId":50588,"journal":{"name":"Development Genes and Evolution","volume":"231 1-2","pages":"1-9"},"PeriodicalIF":2.4,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00427-020-00670-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38594874","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}
{"title":"Identification of a novel germ cell marker MnTdrd from the oriental river prawn Macrobrachium nipponense.","authors":"Yao-Ting Dong, Hai-Yang Feng, Xiao-Qing Tian, Qi-Liang Wang, Shu-Fang Zhang, Ke-Yi Ma, Gao-Feng Qiu","doi":"10.1007/s00427-020-00671-8","DOIUrl":"https://doi.org/10.1007/s00427-020-00671-8","url":null,"abstract":"<p><p>Germ cell-specific genes play an important role in establishing the reproductive system in sexual organisms and have been used as valuable markers for studying gametogenesis and sex differentiation. Previously, we isolated a vasa transcript as a germ cell marker to trace the origin and migration of germ cells in the oriental river prawn Macrobrachium nipponense. Here, we identified a new germ cell-specific marker MnTdrd RNA and assessed its temporal and spatial expression during oogenesis and embryogenesis. MnTdrd transcripts were expressed in high abundance in unfertilized eggs and embryos at cleavage stage and then dropped significantly during late embryogenesis, suggesting that MnTdrd mRNA is maternally inherited. In situ hybridization of ovarian tissue showed that MnTdrd mRNA was initially present in the cytoplasm of previtellogenic oocyte and localized to the perinuclear region as the accumulation of yolk in vitellogenic oocyte. Whole-mount in situ hybridization of embryos showed that MnTdrd-positive signals were only localized in one blastomere until 16-cell stage. In the blastula, there were approximately 16 MnTdrd-positive blastomeres. During embryonized-zoea stage, the MnTdrd-positive cells aggregated as a cluster and migrated to the genital rudiment which would develop into primordial germ cells (PGCs). The localized expression pattern of MnTdrd transcripts resembled that of the previously identified germ cell marker vasa, supporting the preformation mode of germ cell specification. Therefore, we concluded that MnTdrd, together with vasa, is a component of the germ plasm and might have critical roles in germ cell formation and differentiation in the prawn. Thus, MnTdrd can be used as a novel germ cell marker to trace the origin and migration of germ cells.</p>","PeriodicalId":50588,"journal":{"name":"Development Genes and Evolution","volume":"231 1-2","pages":"11-19"},"PeriodicalIF":2.4,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00427-020-00671-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38647872","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}
Irfan Hussain, Rabail Zehra Raza, Shahid Ali, Muhammad Abrar, Amir Ali Abbasi
{"title":"Molecular signatures of selection on the human GLI3 associated central nervous system specific enhancers.","authors":"Irfan Hussain, Rabail Zehra Raza, Shahid Ali, Muhammad Abrar, Amir Ali Abbasi","doi":"10.1007/s00427-021-00672-1","DOIUrl":"https://doi.org/10.1007/s00427-021-00672-1","url":null,"abstract":"<p><p>The zinc finger-containing transcription factor Gli3 is a key mediator of Hedgehog (Hh) signaling pathway. In vertebrates, Gli3 has widespread expression pattern during early embryonic development. Along the anteroposterior axes of the central nervous system (CNS), dorsoventral neural pattern elaboration is achieved through Hh mediated spatio-temporal deployment of Gli3 transcripts. Previously, we and others uncovered a set of enhancers that mediate many of the known aspects of Gli3 expression during neurogenesis. However, the potential role of Gli3 associated enhancers in trait evolution has not yet received any significant attention. Here, we investigate the evolutionary patterns of Gli3 associated CNS-specific enhancers that have been reported so far. A subset of these enhancers has undergone an accelerated rate of molecular evolution in the human lineage in comparison to other primates/mammals. These fast-evolving enhancers have acquired human-specific changes in transcription factor binding sites (TFBSs). These human-unique changes within subset of Gli3 associated CNS-specific enhancers were further validated as single nucleotide polymorphisms through 1000 Genome Project Phase 3 data. This work not only infers the molecular evolutionary patterns of Gli3 associated enhancers but also provides clues for putative genetic basis of the population-specificity of gene expression regulation.</p>","PeriodicalId":50588,"journal":{"name":"Development Genes and Evolution","volume":"231 1-2","pages":"21-32"},"PeriodicalIF":2.4,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s00427-021-00672-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25431802","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}
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, Ugo Coppola, Quirino A Vassalli, Claudia La Vecchia, Anna Palumbo, Enrico D'Aniello, Annamaria Locascio, Filomena Ristoratore, 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}
{"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, Takeshi A Onuma, Lucia Manni, Nobuhiko Ohno, 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}
{"title":"Evolutionary conservation of opsin gene expression patterns in the compound eyes of darkling beetles.","authors":"Meng Wu, Riyue Bao, 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}
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, Tiesong Li, Qingwei Li, Yue Pang, 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}
{"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}
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, Dylan Sebagh, Mohammed Riaz, Xin Wang, Bharat Koripella, Vasanth Palanisamy, Nabeel Mohammad, Qing Chen, 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}
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, Jung Hee Levialdi Ghiron, Ivana Zucchetti, Luigi Caputi, Raffaella Tarallo, Fabio Crocetta, Rosaria De Santis, Salvatore D'Aniello, 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}