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Dai Y, Zhong Y, Pan R, Yuan L, Fu Y, Chen Y, Du J, Li M, Wang X, Liu H, Shi C, Liu G, Zhu P, Shimeld S, Zhou X, Li G. Evolutionary origin of the chordate nervous system revealed by amphioxus developmental trajectories. Nat Ecol Evol 2024:10.1038/s41559-024-02469-7. [PMID: 39025981 DOI: 10.1038/s41559-024-02469-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 06/17/2024] [Indexed: 07/20/2024]
Abstract
The common ancestor of all vertebrates had a highly sophisticated nervous system, but questions remain about the evolution of vertebrate neural cell types. The amphioxus, a chordate that diverged before the origin of vertebrates, can inform vertebrate evolution. Here we develop and analyse a single-cell RNA-sequencing dataset from seven amphioxus embryo stages to understand chordate cell type evolution and to study vertebrate neural cell type origins. We identified many new amphioxus cell types, including homologues to the vertebrate hypothalamus and neurohypophysis, rooting the evolutionary origin of these structures. On the basis of ancestor-descendant reconstruction of cell trajectories of the amphioxus and other species, we inferred expression dynamics of transcription factor genes throughout embryogenesis and identified three ancient developmental routes forming chordate neurons. We characterized cell specification at the mechanistic level and generated mutant lines to examine the function of five key transcription factors involved in neural specification. Our results show three developmental origins for the vertebrate nervous system: an anterior FoxQ2-dependent mechanism that is deeply conserved in invertebrates, a less-conserved route leading to more posterior neurons in the vertebrate spinal cord and a mechanism for specifying neuromesoderm progenitors that is restricted to chordates. The evolution of neuromesoderm progenitors may have led to a dramatic shift in posterior neural and mesodermal cell fate decisions and the body elongation process in a stem chordate.
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Affiliation(s)
- Yichen Dai
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, China
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Beijing, China
| | - Yanhong Zhong
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Rongrong Pan
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Liang Yuan
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, China
- School of Life Sciences, Xinjiang Normal University, Urumqi, China
| | - Yongheng Fu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Yuwei Chen
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Juan Du
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Beijing, China
| | - Meng Li
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Beijing, China
| | - Xiao Wang
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Beijing, China
| | - Huimin Liu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Chenggang Shi
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, China
| | - Gaoming Liu
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Beijing, China
| | - Pingfen Zhu
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Beijing, China
| | | | - Xuming Zhou
- CAS Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Beijing, China.
| | - Guang Li
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiamen, China.
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2
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Liu S, Xu X, Omari-Siaw E, Yu J, Deng W. Progress of reprogramming astrocytes into neuron. Mol Cell Neurosci 2024; 130:103947. [PMID: 38862082 DOI: 10.1016/j.mcn.2024.103947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 06/07/2024] [Accepted: 06/07/2024] [Indexed: 06/13/2024] Open
Abstract
As the main players in the central nervous system (CNS), neurons dominate most life activities. However, after accidental trauma or neurodegenerative diseases, neurons are unable to regenerate themselves. The loss of this important role can seriously affect the quality of life of patients, ranging from movement disorders to disability and even death. There is no suitable treatment to prevent or reverse this process. Therefore, the regeneration of neurons after loss has been a major clinical problem and the key to treatment. Replacing the lost neurons by transdifferentiation of other cells is the only viable approach. Although much progress has been made in stem cell therapy, ethical issues, immune rejection, and limited cell sources still hinder its clinical application. In recent years, somatic cell reprogramming technology has brought a new dawn. Among them, astrocytes, as endogenously abundant cells homologous to neurons, have good potential and application value for reprogramming into neurons, having been reprogrammed into neurons in vitro and in vivo in a variety of ways.
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Affiliation(s)
- Sitong Liu
- School of Pharmacy, Jiangsu University, Zhenjiang, China; The International Institute on Natural Products and Stem Cells (iNPS), Zhenjiang, China; Key Lab for Drug Delivery & Tissue Regeneration, Zhenjiang, China; Jiangsu Provincial Research Center for Medicinal Function Development of New Food Resources, Zhenjiang, China
| | - Ximing Xu
- School of Pharmacy, Jiangsu University, Zhenjiang, China; The International Institute on Natural Products and Stem Cells (iNPS), Zhenjiang, China; Key Lab for Drug Delivery & Tissue Regeneration, Zhenjiang, China; Jiangsu Provincial Research Center for Medicinal Function Development of New Food Resources, Zhenjiang, China
| | - Emmanuel Omari-Siaw
- Department of Pharmaceutical Science, Kumasi Technical University, PO Box 854, Kumasi, Ashanti, Ghana
| | - Jiangnan Yu
- School of Pharmacy, Jiangsu University, Zhenjiang, China; The International Institute on Natural Products and Stem Cells (iNPS), Zhenjiang, China; Key Lab for Drug Delivery & Tissue Regeneration, Zhenjiang, China; Jiangsu Provincial Research Center for Medicinal Function Development of New Food Resources, Zhenjiang, China.
| | - Wenwen Deng
- School of Pharmacy, Jiangsu University, Zhenjiang, China; The International Institute on Natural Products and Stem Cells (iNPS), Zhenjiang, China; Key Lab for Drug Delivery & Tissue Regeneration, Zhenjiang, China; Jiangsu Provincial Research Center for Medicinal Function Development of New Food Resources, Zhenjiang, China.
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3
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Transcription factor CgPOU3F4-like regulates expression of pheomelanin synthesis related gene CgB-aat1 in the Pacific oyster (Crassostrea gigas). Gene 2023; 861:147258. [PMID: 36754175 DOI: 10.1016/j.gene.2023.147258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/24/2023] [Accepted: 02/03/2023] [Indexed: 02/08/2023]
Abstract
Previous study has found that b (0, +) -type amino acid transporter 1 (CgB-aat1) plays an essential role on mantle pigmentation in the Pacific oyster Crassostrea gigas. However, the molecular regulation of CgB-aat1 gene expression remains unclear. Herein, three POU domain family members, CgPOU2F1, CgPOU3F4-like and CgPOU4F3-X1 were characterized and they all had POUs and HOX domains, respectively, which were important in transcriptional regulation. CgPOU3F4-like gene expression was the highest in mantle edge. Subsequently, the dual-luciferase reporter result showed that the core regulatory region of CgB-aat1 gene was from -632 to -350 bp of promoter. In transient co-transfection assays, the strongest activity was activated only by CgPOU3F4-like, suggesting CgPOU3F4-like was a valid transcriptional activator of CgB-aat1 gene promoter. And the structural integrity of CgPOU3F4-like was essential for its activation function. In addition, site directed mutagenesis assay was applied to detect three key binding sites between CgPOU3F4-like and core region of CgB-aat1 gene promoter, and this interaction was verified by ChIP test. Furthermore, CgPOU3F4-like knockdown by RNA interference led to obvious decreases in CgB-aat1 and cystathionine beta-synthase (CgCbs) expressions at both mRNA and protein levels. Collectively, these results indicate that CgPOU3F4-like positively regulate CgB-aat1 gene expression and it may be a critical upstream transcriptional regulation factor in pheomelanin synthesis in C. gigas.
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Bozzo M, Bellitto D, Amaroli A, Ferrando S, Schubert M, Candiani S. Retinoic Acid and POU Genes in Developing Amphioxus: A Focus on Neural Development. Cells 2023; 12:cells12040614. [PMID: 36831281 PMCID: PMC9953854 DOI: 10.3390/cells12040614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/27/2023] [Accepted: 02/07/2023] [Indexed: 02/16/2023] Open
Abstract
POU genes are a family of evolutionarily conserved transcription factors with key functions in cell type specification and neurogenesis. In vitro experiments have indicated that the expression of some POU genes is controlled by the intercellular signaling molecule retinoic acid (RA). In this work, we aimed to characterize the roles of RA signaling in the regulation of POU genes in vivo. To do so, we studied POU genes during the development of the cephalochordate amphioxus, an animal model crucial for understanding the evolutionary origins of vertebrates. The expression patterns of amphioxus POU genes were assessed at different developmental stages by chromogenic in situ hybridization and hybridization chain reaction. Expression was further assessed in embryos subjected to pharmacological manipulation of endogenous RA signaling activity. In addition to a detailed description of the effects of these treatments on amphioxus POU gene expression, our survey included the first description of Pou2 and Pou6 expression in amphioxus embryos. We found that Pit-1, Pou2, Pou3l, and Pou6 expression are not affected by alterations of endogenous RA signaling levels. In contrast, our experiments indicated that Brn1/2/4 and Pou4 expression are regulated by RA signaling in the endoderm and the nerve cord, respectively. The effects of the treatments on Pou4 expression in the nerve cord revealed that, in developing amphioxus, RA signaling plays a dual role by (1) providing anteroposterior patterning information to neural cells and (2) specifying neural cell types. This finding is coherent with a terminal selector function of Pou4 for GABAergic neurons in amphioxus and represents the first description of RA-induced changes in POU gene expression in vivo.
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Affiliation(s)
- Matteo Bozzo
- Dipartimento di Scienze della Terra dell’Ambiente e della Vita (DISTAV), Università degli Studi di Genova, 16132 Genoa, Italy
- Correspondence: (M.B.); (S.C.); Tel.: +39-0103358043 (M.B.); +39-0103358051 (S.C.)
| | - Deianira Bellitto
- Dipartimento di Scienze della Terra dell’Ambiente e della Vita (DISTAV), Università degli Studi di Genova, 16132 Genoa, Italy
| | - Andrea Amaroli
- Dipartimento di Scienze della Terra dell’Ambiente e della Vita (DISTAV), Università degli Studi di Genova, 16132 Genoa, Italy
| | - Sara Ferrando
- Dipartimento di Scienze della Terra dell’Ambiente e della Vita (DISTAV), Università degli Studi di Genova, 16132 Genoa, Italy
| | - Michael Schubert
- Laboratoire de Biologie du Développement de Villefranche-sur-Mer (LBDV), Institut de la Mer de Villefranche, Sorbonne Université, CNRS, 06230 Villefranche-sur-Mer, France
| | - Simona Candiani
- Dipartimento di Scienze della Terra dell’Ambiente e della Vita (DISTAV), Università degli Studi di Genova, 16132 Genoa, Italy
- Correspondence: (M.B.); (S.C.); Tel.: +39-0103358043 (M.B.); +39-0103358051 (S.C.)
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Ma P, Liu X, Xu Z, Liu H, Ding X, Huang Z, Shi C, Liang L, Xu L, Li X, Li G, He Y, Ding Z, Chai C, Wang H, Qiu J, Zhu J, Wang X, Ding P, Zhou S, Yuan Y, Wu W, Wan C, Yan Y, Zhou Y, Zhou QJ, Wang GD, Zhang Q, Xu X, Li G, Zhang S, Mao B, Chen D. Joint profiling of gene expression and chromatin accessibility during amphioxus development at single-cell resolution. Cell Rep 2022; 39:110979. [PMID: 35732129 DOI: 10.1016/j.celrep.2022.110979] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 03/21/2022] [Accepted: 05/27/2022] [Indexed: 11/03/2022] Open
Abstract
Vertebrate evolution was accompanied by two rounds of whole-genome duplication followed by functional divergence in terms of regulatory circuits and gene expression patterns. As a basal and slow-evolving chordate species, amphioxus is an ideal paradigm for exploring the origin and evolution of vertebrates. Single-cell sequencing has been widely used to construct the developmental cell atlas of several representative species of vertebrates (human, mouse, zebrafish, and frog) and tunicates (sea squirts). Here, we perform single-nucleus RNA sequencing (snRNA-seq) and single-cell assay for transposase accessible chromatin sequencing (scATAC-seq) for different stages of amphioxus (covering embryogenesis and adult tissues). With the datasets generated, we constructed a developmental tree for amphioxus cell fate commitment and lineage specification and characterize the underlying key regulators and genetic regulatory networks. The data are publicly available on the online platform AmphioxusAtlas.
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Affiliation(s)
- Pengcheng Ma
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
| | - Xingyan Liu
- Academy of Mathematics and Systems Science, Chinese Academy of Science, Beijing 100190, China; School of Mathematical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zaoxu Xu
- BGI-Shenzhen, Shenzhen 518083, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huimin Liu
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiangan District, Xiamen, Fujian 361102, China
| | - Xiangning Ding
- BGI-Shenzhen, Shenzhen 518083, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhen Huang
- Fujian Key Laboratory of Special Marine Bio-resources Sustainable Utilization, College of Life Sciences, Fujian Normal University, Fuzhou, 350117 Fujian, China; Fuzhou Institute of Oceanography, Minjiang University, Fuzhou 350108, China; Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Minjiang University, Fuzhou 350108, China
| | - Chenggang Shi
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiangan District, Xiamen, Fujian 361102, China
| | - Langchao Liang
- BGI-Shenzhen, Shenzhen 518083, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Luohao Xu
- Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, China
| | - Xiaolu Li
- Genome Center of Biodiversity, Kunming Institute of Zoology, Chinese Academy of Science, Kunming 650223, China
| | - Guimei Li
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
| | - Yuqi He
- Genome Center of Biodiversity, Kunming Institute of Zoology, Chinese Academy of Science, Kunming 650223, China
| | - Zhaoli Ding
- Genome Center of Biodiversity, Kunming Institute of Zoology, Chinese Academy of Science, Kunming 650223, China
| | - Chaochao Chai
- BGI-Shenzhen, Shenzhen 518083, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Haoyu Wang
- BGI-Shenzhen, Shenzhen 518083, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiaying Qiu
- BGI-Shenzhen, Shenzhen 518083, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiacheng Zhu
- BGI-Shenzhen, Shenzhen 518083, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | | | - Peiwen Ding
- BGI-Shenzhen, Shenzhen 518083, China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Si Zhou
- BGI-Shenzhen, Shenzhen 518083, China
| | | | - Wendi Wu
- BGI-Shenzhen, Shenzhen 518083, China
| | - Cen Wan
- Fujian Key Laboratory of Special Marine Bio-resources Sustainable Utilization, College of Life Sciences, Fujian Normal University, Fuzhou, 350117 Fujian, China
| | - Yanan Yan
- Fujian Key Laboratory of Special Marine Bio-resources Sustainable Utilization, College of Life Sciences, Fujian Normal University, Fuzhou, 350117 Fujian, China
| | - Yitao Zhou
- Fujian Key Laboratory of Special Marine Bio-resources Sustainable Utilization, College of Life Sciences, Fujian Normal University, Fuzhou, 350117 Fujian, China
| | - Qi-Jun Zhou
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China
| | - Guo-Dong Wang
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China; Genome Center of Biodiversity, Kunming Institute of Zoology, Chinese Academy of Science, Kunming 650223, China; Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming 650223, China
| | - Qiujin Zhang
- Fujian Key Laboratory of Special Marine Bio-resources Sustainable Utilization, College of Life Sciences, Fujian Normal University, Fuzhou, 350117 Fujian, China.
| | - Xun Xu
- BGI-Shenzhen, Shenzhen 518083, China.
| | - Guang Li
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, Xiangan District, Xiamen, Fujian 361102, China.
| | - Shihua Zhang
- Academy of Mathematics and Systems Science, Chinese Academy of Science, Beijing 100190, China; Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming 650223, China; Key Laboratory of Systems Biology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Hangzhou 310024, China.
| | - Bingyu Mao
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China; Center for Excellence in Animal Evolution and Genetics, Chinese Academy of Sciences, Kunming 650223, China.
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Vanni V, Salonna M, Gasparini F, Martini M, Anselmi C, Gissi C, Manni L. Yamanaka Factors in the Budding Tunicate Botryllus schlosseri Show a Shared Spatio-Temporal Expression Pattern in Chordates. Front Cell Dev Biol 2022; 10:782722. [PMID: 35342743 PMCID: PMC8948423 DOI: 10.3389/fcell.2022.782722] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 02/09/2022] [Indexed: 01/22/2023] Open
Abstract
In vertebrates, the four transcription factors Sox2, c-Myc, Pou5f1 and Klf4 are involved in the differentiation of several tissues during vertebrate embryogenesis; moreover, they are normally co-expressed in embryonic stem cells and play roles in pluripotency, self-renewal, and maintenance of the undifferentiated state in adult cells. The in vitro forced co-expression of these factors, named Yamanaka factors (YFs), induces pluripotency in human or mouse fibroblasts. Botryllus schlosseri is a colonial tunicate undergoing continuous stem cell-mediated asexual development, providing a valuable model system for the study of pluripotency in the closest living relatives of vertebrates. In this study, we identified B. schlosseri orthologs of human Sox2 and c-Myc genes, as well as the closest homologs of the vertebrate-specific Pou5f1 gene, through an in-depth evolutionary analysis of the YF gene families in tunicates and other deuterostomes. Then, we studied the expression of these genes during the asexual cycle of B. schlosseri using in situ hybridization in order to investigate their possible involvement in tissue differentiation and in pluripotency maintenance. Our results show a shared spatio-temporal expression pattern consistent with the reported functions of these genes in invertebrate and vertebrate embryogenesis. Moreover, Myc, SoxB1 and Pou3 were expressed in candidate stem cells residing in their niches, while Pou2 was found expressed exclusively in the immature previtellogenic oocytes, both in gonads and circulating in the colonial vascular system. Our data suggest that Myc, SoxB1 and Pou3 may be individually involved in the differentiation of the same territories seen in other chordates, and that, together, they may play a role in stemness even in this colonial ascidian.
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Affiliation(s)
- Virginia Vanni
- Department of Biology, University of Padova, Padova, Italy
| | - Marika Salonna
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari "Aldo Moro", Bari, Italy
| | | | | | - Chiara Anselmi
- Stanford University, Hopkins Marine Station, Pacific Grove, CA, United States.,Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Carmela Gissi
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari "Aldo Moro", Bari, Italy.,IBIOM, Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, Consiglio Nazionale Delle Ricerche, Bari, Italy.,CoNISMa, Consorzio Nazionale Interuniversitario per le Scienze Del Mare, Roma, Italy
| | - Lucia Manni
- Department of Biology, University of Padova, Padova, Italy
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7
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Kawaguchi M, Sugiyama K, Matsubara K, Lin CY, Kuraku S, Hashimoto S, Suwa Y, Yong LW, Takino K, Higashida S, Kawamura D, Yu JK, Seki Y. Co-option of the PRDM14–CBFA2T complex from motor neurons to pluripotent cells during vertebrate evolution. Development 2019; 146:dev.168633. [DOI: 10.1242/dev.168633] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 12/20/2018] [Indexed: 11/20/2022]
Abstract
Gene regulatory networks underlying cellular pluripotency are controlled by a core circuitry of transcription factors in mammals, including POU5F1. However, the evolutionary origin and transformation of pluripotency-related transcriptional networks have not been elucidated in deuterostomes. PR domain-containing protein 14 (PRDM14) is specifically expressed in pluripotent cells and germ cells, and required for establishing embryonic stem cells (ESCs) and primordial germ cells in mice. Here, we compared the functions and expression patterns of PRDM14 orthologues within deuterostomes. Amphioxus PRDM14 and zebrafish PRDM14, but not sea urchin PRDM14, compensated for mouse PRDM14 function in maintaining mouse ESC pluripotency. Interestingly, sea urchin PRDM14 together with sea urchin CBFA2T, an essential partner of PRDM14 in mouse ESCs, complemented the self-renewal defect in mouse Prdm14 KO ESCs. Contrary to the Prdm14-expression pattern in mouse embryos, Prdm14 was expressed in motor neurons of amphioxus embryos as observed in zebrafish embryos. Thus, Prdm14 expression in motor neurons was conserved in non-tetrapod deuterostomes and the co-option of the PRDM14-CBFA2T complex from motor neurons into pluripotent cells may have maintained the transcriptional network for pluripotency during vertebrate evolution.
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Affiliation(s)
- Masanori Kawaguchi
- Department of Biomedical Chemistry, School of Science and Technology, Kwansei Gakuin Univerisity, Japan
| | - Kota Sugiyama
- Department of Biomedical Chemistry, School of Science and Technology, Kwansei Gakuin Univerisity, Japan
| | - Kazumi Matsubara
- Department of Biomedical Chemistry, School of Science and Technology, Kwansei Gakuin Univerisity, Japan
| | - Che-Yi Lin
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, 11529, Taiwan
| | - Shigehiro Kuraku
- Laboratory for Phyloinformatics, RIKEN Center for Biosystems Dynamics Research, 2-2-3 Minatojima-minami, Kobe, 650-0047, Japan
| | - Shota Hashimoto
- Department of Biomedical Chemistry, School of Science and Technology, Kwansei Gakuin Univerisity, Japan
| | - Yoshiaki Suwa
- Department of Biomedical Chemistry, School of Science and Technology, Kwansei Gakuin Univerisity, Japan
| | - Luok Wen Yong
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, 11529, Taiwan
| | - Koji Takino
- Department of Biomedical Chemistry, School of Science and Technology, Kwansei Gakuin Univerisity, Japan
| | - Shota Higashida
- Department of Biomedical Chemistry, School of Science and Technology, Kwansei Gakuin Univerisity, Japan
| | - Daisuke Kawamura
- Department of Biomedical Chemistry, School of Science and Technology, Kwansei Gakuin Univerisity, Japan
| | - Jr-Kai Yu
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, 11529, Taiwan
| | - Yoshiyuki Seki
- Department of Biomedical Chemistry, School of Science and Technology, Kwansei Gakuin Univerisity, Japan
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8
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Prünster MM, Ricci L, Brown FD, Tiozzo S. De novo neurogenesis in a budding chordate: Co-option of larval anteroposterior patterning genes in a transitory neurogenic organ. Dev Biol 2018; 448:342-352. [PMID: 30563648 DOI: 10.1016/j.ydbio.2018.10.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 08/29/2018] [Accepted: 10/16/2018] [Indexed: 01/29/2023]
Abstract
During metamorphosis of solitary ascidians, part of the larval tubular nervous system is recruited to form the adult central nervous system (CNS) through neural stem-like cells called ependymal cells. The anteroposterior (AP) gene expression patterning of the larval CNS regionalize the distribution of the ependymal cells, which contains the positional information of the neurons of the adult nervous system. In colonial ascidians, the CNS of asexually developed zooids has the same morphology of the one of the post-metamorphic zooids. However, its development follows a completely different organogenesis that lacks embryogenesis, a larval phase and metamorphosis. In order to describe neurogenesis during asexual development (blastogenesis), we followed the expression of six CNS AP patterning genes conserved in chordates and five neural-related genes to determine neural cell identity in Botryllus schlosseri. We observed that a neurogenesis occurs de novo on each blastogenic cycle starting from a neurogenic transitory structure, the dorsal tube. The dorsal tube partially co-opts the AP patterning of the larval CNS markers, and potentially combine the neurogenesis role and provider of positional clues for neuron patterning. This study shows how a larval developmental module is reused in a direct asexual development in order to generate the same structures.
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Affiliation(s)
- Maria Mandela Prünster
- Sorbonne Universités, CNRS, Laboratoire de Biologie du Développement de Villefranche-sur-mer (LBDV), 06230 Paris, France
| | - Lorenzo Ricci
- Sorbonne Universités, CNRS, Laboratoire de Biologie du Développement de Villefranche-sur-mer (LBDV), 06230 Paris, France; Harvard University, Department of Organismic&Evolutionary Biology, 52 Oxford Street, Cambridge, MA 02138, United States
| | - Federico D Brown
- Departamento de Zoologia - Instituto Biociências, Universidade de São Paulo, São Paulo, SP CEP 05508-090, Brazil; Centro de Biologia Marinha (CEBIMar), Universidade de São Paulo, São Sebastião, SP CEP 11612-109, Brazil
| | - Stefano Tiozzo
- Sorbonne Universités, CNRS, Laboratoire de Biologie du Développement de Villefranche-sur-mer (LBDV), 06230 Paris, France.
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9
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Albuixech-Crespo B, López-Blanch L, Burguera D, Maeso I, Sánchez-Arrones L, Moreno-Bravo JA, Somorjai I, Pascual-Anaya J, Puelles E, Bovolenta P, Garcia-Fernàndez J, Puelles L, Irimia M, Ferran JL. Molecular regionalization of the developing amphioxus neural tube challenges major partitions of the vertebrate brain. PLoS Biol 2017; 15:e2001573. [PMID: 28422959 PMCID: PMC5396861 DOI: 10.1371/journal.pbio.2001573] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 03/22/2017] [Indexed: 11/25/2022] Open
Abstract
All vertebrate brains develop following a common Bauplan defined by anteroposterior (AP) and dorsoventral (DV) subdivisions, characterized by largely conserved differential expression of gene markers. However, it is still unclear how this Bauplan originated during evolution. We studied the relative expression of 48 genes with key roles in vertebrate neural patterning in a representative amphioxus embryonic stage. Unlike nonchordates, amphioxus develops its central nervous system (CNS) from a neural plate that is homologous to that of vertebrates, allowing direct topological comparisons. The resulting genoarchitectonic model revealed that the amphioxus incipient neural tube is unexpectedly complex, consisting of several AP and DV molecular partitions. Strikingly, comparison with vertebrates indicates that the vertebrate thalamus, pretectum, and midbrain domains jointly correspond to a single amphioxus region, which we termed Di-Mesencephalic primordium (DiMes). This suggests that these domains have a common developmental and evolutionary origin, as supported by functional experiments manipulating secondary organizers in zebrafish and mice.
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Affiliation(s)
- Beatriz Albuixech-Crespo
- Department of Genetics, School of Biology, and Institut de Biomedicina (IBUB), University of Barcelona, Barcelona, Spain
| | - Laura López-Blanch
- Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Demian Burguera
- Department of Genetics, School of Biology, and Institut de Biomedicina (IBUB), University of Barcelona, Barcelona, Spain
- Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Ignacio Maeso
- Centro Andaluz de Biología del Desarrollo (CSIC/UPO/JA), Sevilla, Spain
| | - Luisa Sánchez-Arrones
- Centro de Biología Molecular Severo Ochoa CSIC-UAM and CIBERER, ISCIII, Madrid, Spain
| | | | - Ildiko Somorjai
- The Scottish Oceans Institute, University of St Andrews, St Andrews, Fife, Scotland, United Kingdom
- Biomedical Sciences Research Complex, University of St Andrews, Fife, Scotland, United Kingdom
| | | | - Eduardo Puelles
- Instituto de Neurociencias, UMH-CSIC, Campus de San Juan, Sant Joan d'Alacant, Alicante, Spain
| | - Paola Bovolenta
- Centro de Biología Molecular Severo Ochoa CSIC-UAM and CIBERER, ISCIII, Madrid, Spain
| | - Jordi Garcia-Fernàndez
- Department of Genetics, School of Biology, and Institut de Biomedicina (IBUB), University of Barcelona, Barcelona, Spain
| | - Luis Puelles
- Department of Human Anatomy and Psychobiology, School of Medicine, University of Murcia, Murcia, Spain
- Institute of Biomedical Research of Murcia (IMIB), Virgen de la Arrixaca University Hospital, University of Murcia, Murcia, Spain
| | - Manuel Irimia
- Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - José Luis Ferran
- Department of Human Anatomy and Psychobiology, School of Medicine, University of Murcia, Murcia, Spain
- Institute of Biomedical Research of Murcia (IMIB), Virgen de la Arrixaca University Hospital, University of Murcia, Murcia, Spain
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Wong KSY, Arenas-Mena C. Expression ofGATAandPOUtranscription factors during the development of the planktotrophic trochophore of the polychaete serpulidHydroides elegans. Evol Dev 2016; 18:254-66. [DOI: 10.1111/ede.12196] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Kimberly Suk-Ying Wong
- Department of Biology; San Diego State University; 5500 Campanile Drive San Diego CA 92182-4614 USA
| | - Cesar Arenas-Mena
- Department of Biology, College of Staten Island and Graduate Center; The City University of New York (CUNY); Staten Island NY 10314 USA
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11
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Evolution and functions of Oct4 homologs in non-mammalian vertebrates. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2016; 1859:770-9. [PMID: 27058398 DOI: 10.1016/j.bbagrm.2016.03.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Revised: 03/22/2016] [Accepted: 03/23/2016] [Indexed: 12/13/2022]
Abstract
PouV class transcription factor Oct4/Pou5f1 is a central regulator of indefinite pluripotency in mammalian embryonic stem cells (ESCs) but also participates in cell lineage specification in mouse embryos and in differentiating cell cultures. The molecular basis for this versatility, which is shared between Oct4 and its non-mammalian homologs Pou5f1 and Pou5f3, is not yet completely understood. Here, I review the current understanding of the evolution of PouV class transcription factors and discuss equivalent and diverse roles of Oct4 homologs in pluripotency, differentiation, and cell behavior in different vertebrate embryos. This article is part of a Special Issue entitled: The Oct Transcription Factor Family, edited by Dr. Dean Tantin.
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Wollesen T, McDougall C, Degnan BM, Wanninger A. POU genes are expressed during the formation of individual ganglia of the cephalopod central nervous system. EvoDevo 2014; 5:41. [PMID: 25908957 PMCID: PMC4407788 DOI: 10.1186/2041-9139-5-41] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Accepted: 09/29/2014] [Indexed: 11/18/2022] Open
Abstract
Background Among the Lophotrochozoa, cephalopods possess the highest degree of central nervous system (CNS) centralization and complexity. Although the anatomy of the developing cephalopod CNS has been investigated, the developmental mechanisms underlying brain development and evolution are unknown. POU genes encode key transcription factors controlling nervous system development in a range of bilaterian species, including lophotrochozoans. In this study, we investigate the expression of POU genes during early development of the pygmy squid Idiosepius notoides and make comparisons with other bilaterians to reveal whether these genes have conserved or divergent roles during CNS development in this species. Results POU2, POU3, POU4 and POU6 orthologs were identified in transcriptomes derived from developmental stages and adult brain tissue of I. notoides. All four POU gene orthologs are expressed in different spatiotemporal combinations in the early embryo. Ino-POU2 is expressed in the gills and the palliovisceral, pedal, and optic ganglia of stage 19 to 20 embryos, whereas the cerebral and palliovisceral ganglia express Ino-POU3. Ino-POU4 is expressed in the optic and palliovisceral ganglia and the arms/intrabrachial ganglia of stage 19 to 20 individuals. Ino-POU6 is expressed in the palliovisceral ganglia during early development. In stage 25 embryos expression domains include the intrabrachial ganglia (Ino-POU3) and the pedal ganglia (Ino-POU6). All four POU genes are strongly expressed in large areas of the brain of stage 24 to 26 individuals. Expression could not be detected in late prehatching embryos (approximately stage 27 to 30). Conclusions The expression of four POU genes in unique spatiotemporal combinations during early neurogenesis and sensory organ development of I. notoides suggests that they fulfill distinct tasks during early brain development. Comparisons with other bilaterian species reveal that POU gene expression is associated with anteriormost neural structures, even between animals for which these structures are unlikely to be homologous. Within lophotrochozoans, POU3 and POU4 are the only two genes that have been comparatively investigated. Their expression patterns are broadly similar, indicating that the increased complexity of the cephalopod brain is likely due to other unknown factors.
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Affiliation(s)
- Tim Wollesen
- Department of Integrative Zoology, Faculty of Sciences, University of Vienna, Althanstr. 14, 1090 Vienna, Austria
| | - Carmel McDougall
- School of Biological Sciences, The University of Queensland, Brisbane, QLD 4072 Australia
| | - Bernard M Degnan
- School of Biological Sciences, The University of Queensland, Brisbane, QLD 4072 Australia
| | - Andreas Wanninger
- Department of Integrative Zoology, Faculty of Sciences, University of Vienna, Althanstr. 14, 1090 Vienna, Austria
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Kozmikova I, Candiani S, Fabian P, Gurska D, Kozmik Z. Essential role of Bmp signaling and its positive feedback loop in the early cell fate evolution of chordates. Dev Biol 2013; 382:538-54. [DOI: 10.1016/j.ydbio.2013.07.021] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Revised: 07/18/2013] [Accepted: 07/19/2013] [Indexed: 11/25/2022]
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Molecular analysis of the amphioxus frontal eye unravels the evolutionary origin of the retina and pigment cells of the vertebrate eye. Proc Natl Acad Sci U S A 2012; 109:15383-8. [PMID: 22949670 DOI: 10.1073/pnas.1207580109] [Citation(s) in RCA: 99] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The origin of vertebrate eyes is still enigmatic. The "frontal eye" of amphioxus, our most primitive chordate relative, has long been recognized as a candidate precursor to the vertebrate eyes. However, the amphioxus frontal eye is composed of simple ciliated cells, unlike vertebrate rods and cones, which display more elaborate, surface-extended cilia. So far, the only evidence that the frontal eye indeed might be sensitive to light has been the presence of a ciliated putative sensory cell in the close vicinity of dark pigment cells. We set out to characterize the cell types of the amphioxus frontal eye molecularly, to test their possible relatedness to the cell types of vertebrate eyes. We show that the cells of the frontal eye specifically coexpress a combination of transcription factors and opsins typical of the vertebrate eye photoreceptors and an inhibitory Gi-type alpha subunit of the G protein, indicating an off-responding phototransductory cascade. Furthermore, the pigmented cells match the retinal pigmented epithelium in melanin content and regulatory signature. Finally, we reveal axonal projections of the frontal eye that resemble the basic photosensory-motor circuit of the vertebrate forebrain. These results support homology of the amphioxus frontal eye and the vertebrate eyes and yield insights into their evolutionary origin.
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Fluorescent in situ hybridization reveals multiple expression domains for SpBrn1/2/4 and identifies a unique ectodermal cell type that co-expresses the ParaHox gene SpLox. Gene Expr Patterns 2009; 9:324-8. [DOI: 10.1016/j.gep.2009.02.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2008] [Revised: 02/11/2009] [Accepted: 02/13/2009] [Indexed: 11/19/2022]
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16
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Comprehensive survey and classification of homeobox genes in the genome of amphioxus, Branchiostoma floridae. Dev Genes Evol 2008; 218:579-90. [DOI: 10.1007/s00427-008-0245-9] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2008] [Accepted: 08/11/2008] [Indexed: 01/01/2023]
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17
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Candiani S, Oliveri D, Parodi M, Bertini E, Pestarino M. Expression of AmphiPOU-IV in the developing neural tube and epidermal sensory neural precursors in amphioxus supports a conserved role of class IV POU genes in the sensory cells development. Dev Genes Evol 2006; 216:623-33. [PMID: 16773340 DOI: 10.1007/s00427-006-0083-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2006] [Accepted: 05/01/2006] [Indexed: 10/24/2022]
Abstract
POU genes play a prominent role in the nervous system differentiation of several organism models, and in particular, they are involved in the differentiation of sensory neurons in numerous invertebrate and vertebrate species. In the present report, cloning and expression profile of a class IV POU gene in amphioxus was assessed for understanding its role in the sensory systems development. A single class IV gene, AmphiPOU-IV was isolated from the amphioxus Branchiostoma floridae. From a phylogenetic point of view, AmphiPOU-IV appears to be strictly related to the vertebrate one, sharing a high homology ratio especially with all vertebrate POU-IV proteins Brn-3a, Brn-3b, and Brn-3c. AmphiPOU-IV was found in the most anterior neural plate and in scattered ectodermic cells on the flanks of neurula, such ectodermic cells resemble the characteristic morphology and position of AmphiCoe and AmphiTrk developing sensory cells. Later on, the expression was confined in some motoneurons at level of the PMC and in some segmental arranged motoneurons in the hindbrain. Such expression is also maintained in larvae, and a new site of AmphiPOU-IV expression was also found in rostrum and mouth edge epidermal sensory cells of the larva. In conclusion, our data suggest an evolutionary conserved role of POU-IV transcription factors in the specification and differentiation of the sensory system in both vertebrates and invertebrates and underline the importance of amphioxus as linking step between them.
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Affiliation(s)
- Simona Candiani
- Department of Biology, University of Genoa, viale Benedetto XV, 5, Genoa, 16132, Italy
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Benito-Gutiérrez E. A gene catalogue of the amphioxus nervous system. Int J Biol Sci 2006; 2:149-60. [PMID: 16763675 PMCID: PMC1474150 DOI: 10.7150/ijbs.2.149] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2006] [Accepted: 05/21/2006] [Indexed: 12/12/2022] Open
Abstract
The elaboration of extremely complex nervous systems is a major success of evolution. However, at the dawn of the post-genomic era, few data have helped yet to unravel how a nervous system develops and evolves to complexity. On the evolutionary road to vertebrates, amphioxus occupies a key position to tackle this exciting issue. Its “simple” nervous system basically consists of a dorsal nerve cord and a diffuse net of peripheral neurons, which contrasts greatly with the complexity of vertebrate nervous systems. Notwithstanding, increasing data on gene expression has faced up this simplicity by revealing a mounting level of cryptic complexity, with unexpected levels of neuronal diversity, organisation and regionalisation of the central and peripheral nervous systems. Furthermore, recent gene expression data also point to the high neurogenic potential of the epidermis of amphioxus, suggestive of a skin-brain track for the evolution of the vertebrate nervous system. Here I attempt to catalogue and synthesise current gene expression data in the amphioxus nervous system. From this global point of view, I suggest scenarios for the evolutionary origin of complex features in the vertebrate nervous system, with special emphasis on the evolutionary origin of placodes and neural crest, and postulate a pre-patterned migratory pathway of cells, which, in the epidermis, may represent an intermediate state towards the deployment of one of the most striking innovative features of vertebrates: the neural crest and its derivatives.
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Abstract
Large-scale gene duplications occurred early in the vertebrate lineage after the split with protochordates. Thus, protochordate hormones and their receptors, transcription factors, and signaling pathways may be the foundation for the endocrine system in vertebrates. A number of hormones have been identified including cionin, a likely ancestor of cholecytokinin (CCK) and gastrin. Both insulin and insulin-like growth hormone (IGF) have been identified in separate cDNAs in a tunicate, whereas only a single insulin-like peptide was found in amphioxus. In tunicates, nine distinct forms of gonadotropin-releasing hormone (GnRH) are shown to induce gamete release, even though a pituitary gland and sex steroids are lacking. In both tunicates and amphioxus, there is evidence of some components of a thyroid system, but the lack of a sequenced genome for amphioxus has slowed progress in the structural identification of its hormones. Immunocytochemistry has been used to tentatively identify a number of hormones in protochordates, but structural and functional studies are needed. For receptors, protochordates have many vertebrate homologs of nuclear receptors, such as the thyroid, retinoic acid, and retinoid X receptors. Also, tunicates have cell surface receptors including the G-protein-coupled type, such as β-adrenergic, putative endocannabinoid, cionin (CCK-like), and two GnRH receptors. Several tyrosine kinase receptors include two epidermal growth factor (EGF) receptors (tunicates) and an insulin/IGF receptor (amphioxus). Interestingly, neither steroid receptors nor a full complement of enzymes for synthesis of sex steroids are encoded in the Ciona genome. Tunicates appear to have some but not all of the necessary molecules to develop a vertebrate-like pituitary or complete thyroid system.
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Jackman WR, Mougey JM, Panopoulou GD, Kimmel CB. crabp and maf highlight the novelty of the amphioxus club-shaped gland. ACTA ZOOL-STOCKHOLM 2004. [DOI: 10.1111/j.0001-7272.2004.00161.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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