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  1. Book ; Online: Evolution of Organismal Form: From Regulatory Interactions to Developmental Processes and Biological Patterns

    Marcellini, Sylvain / Escriva, Hector

    2017  

    Abstract: Todays biodiversity is the spectacular product of hundreds of millions of years of evolution. Understanding how this diversity of living organisms appeared is one of the most intriguing and challenging question in biology. Because organismal morphology ... ...

    Abstract Todays biodiversity is the spectacular product of hundreds of millions of years of evolution. Understanding how this diversity of living organisms appeared is one of the most intriguing and challenging question in biology. Because organismal morphology is established during embryonic development, and because morphological traits diversified from ancestral forms during evolution, it can be inferred that changes in the mechanisms controlling embryonic development are instrumental for morphological evolution. This syllogism lies at the very heart of a new discipline called Evo-Devo which is centered in the identification of the cellular and genetic mechanisms that, through modifications in developmental programmes, were at the base of morphological innovations during evolution.-

    After the discovery of the broad conservation of gene content and regulatory networks in the animal kingdom, as well as in plants, Evo-Devo is orienting towards the study of differences through experimental and functional approaches. Given the wide range of species, gene families, and developmental processes considered, a concerted effort is still required to shed light on the genetic, cellular and molecular mechanisms involved in phenotypic evolution. It is a particularly exciting time for this field of evolutionary developmental biology, as the advent of novel imaging, genome editing and sequencing technologies allows the study of almost any organism in ways that were unthinkable only a few years ago. Therefore, the aim of this Frontiers Research Topic is to gather an original collection of experimental approaches, concepts and hypotheses reflecting the current diversity of the Evo-Devo field.-

    We have organized the articles according to the mechanistic depth with which they tackle specific evolutionary issues. Hence, comparisons of expression patterns have been grouped in Chapter 1, changes in regulatory interactions and gene networks are presented in Chapter 2, while Chapter 3 focuses on the evolution of developmental processes and biological patterns
    Keywords Botany ; Ecology ; Genetics ; Science (General)
    Size 1 electronic resource (118 p.)
    Publisher Frontiers Media SA
    Document type Book ; Online
    Note English ; Open Access
    HBZ-ID HT020095019
    ISBN 9782889450978 ; 288945097X
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  2. Article ; Online: My Favorite Animal, Amphioxus: Unparalleled for Studying Early Vertebrate Evolution.

    Escriva, Hector

    BioEssays : news and reviews in molecular, cellular and developmental biology

    2018  Volume 40, Issue 12, Page(s) e1800130

    Abstract: Amphioxus represents the most basally divergent group in chordates and probably the best extant proxy to the ancestor of all chordates including vertebrates. The amphioxus, or lancelets, are benthic filter feeding marine animals and their interest as a ... ...

    Abstract Amphioxus represents the most basally divergent group in chordates and probably the best extant proxy to the ancestor of all chordates including vertebrates. The amphioxus, or lancelets, are benthic filter feeding marine animals and their interest as a model in research is due to their phylogenetic position and their anatomical and genetic stasis throughout their evolutionary history. From the first works in the 19th century to the present day, enormous progress is made mainly favored by technical development at different levels, from spawning induction and husbandry techniques, through techniques for studies of gene function or of the role of different signalling pathways through embryonic development, to functional genomics techniques. Together, these advances foretell a plethora of interesting developments in the world of research with the amphioxus model. Here, the discovery and development of amphioxus as a superb model organism in evolutionary and evolutionary-developmental biology are reviewed.
    MeSH term(s) Animals ; Biological Evolution ; Developmental Biology/methods ; Genomics/methods ; Heat-Shock Response ; Lancelets/anatomy & histology ; Lancelets/physiology ; Vertebrates/physiology
    Language English
    Publishing date 2018-10-17
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 50140-2
    ISSN 1521-1878 ; 0265-9247
    ISSN (online) 1521-1878
    ISSN 0265-9247
    DOI 10.1002/bies.201800130
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: The Evolution of Invertebrate Animals.

    Bertrand, Stephanie / Escriva, Hector

    Genes

    2022  Volume 13, Issue 3

    Abstract: The current diversity of metazoans has been achieved through a long process of evolution since the appearance of their unicellular ancestor about 1000 Mya [ ... ]. ...

    Abstract The current diversity of metazoans has been achieved through a long process of evolution since the appearance of their unicellular ancestor about 1000 Mya [...].
    MeSH term(s) Animals ; Evolution, Molecular ; Invertebrates ; Phylogeny
    Language English
    Publishing date 2022-03-02
    Publishing country Switzerland
    Document type Editorial
    ZDB-ID 2527218-4
    ISSN 2073-4425 ; 2073-4425
    ISSN (online) 2073-4425
    ISSN 2073-4425
    DOI 10.3390/genes13030454
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: The Evolution of Invertebrate Animals

    Bertrand, Stephanie / Escriva, Hector

    Genes. 2022 Mar. 02, v. 13, no. 3

    2022  

    Abstract: The current diversity of metazoans has been achieved through a long process of evolution since the appearance of their unicellular ancestor about 1000 Mya [ ... ] ...

    Abstract The current diversity of metazoans has been achieved through a long process of evolution since the appearance of their unicellular ancestor about 1000 Mya [...]
    Keywords Animalia ; ancestry ; evolution ; invertebrates
    Language English
    Dates of publication 2022-0302
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2527218-4
    ISSN 2073-4425
    ISSN 2073-4425
    DOI 10.3390/genes13030454
    Database NAL-Catalogue (AGRICOLA)

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  5. Article ; Online: Amphioxus as a model to study the evolution of development in chordates.

    D'Aniello, Salvatore / Bertrand, Stephanie / Escriva, Hector

    eLife

    2023  Volume 12

    Abstract: Cephalochordates and tunicates represent the only two groups of invertebrate chordates, and extant cephalochordates - commonly known as amphioxus or lancelets - are considered the best proxy for the chordate ancestor, from which they split around 520 ... ...

    Abstract Cephalochordates and tunicates represent the only two groups of invertebrate chordates, and extant cephalochordates - commonly known as amphioxus or lancelets - are considered the best proxy for the chordate ancestor, from which they split around 520 million years ago. Amphioxus has been an important organism in the fields of zoology and embryology since the 18
    MeSH term(s) Animals ; Lancelets/genetics ; Urochordata ; Genomics ; Models, Animal
    Language English
    Publishing date 2023-09-18
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2687154-3
    ISSN 2050-084X ; 2050-084X
    ISSN (online) 2050-084X
    ISSN 2050-084X
    DOI 10.7554/eLife.87028
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Exploring tissue morphodynamics using the photoconvertible Kaede protein in amphioxus embryos.

    Meister, Lydvina / Escriva, Hector / Bertrand, Stéphanie

    PloS one

    2022  Volume 17, Issue 9, Page(s) e0275193

    Abstract: Photoconvertible proteins are powerful tools widely used in cellular biology to study cell dynamics and organelles. Over the past decade, photoconvertible proteins have also been used for developmental biology applications to analyze cell lineage and ... ...

    Abstract Photoconvertible proteins are powerful tools widely used in cellular biology to study cell dynamics and organelles. Over the past decade, photoconvertible proteins have also been used for developmental biology applications to analyze cell lineage and cell fate during embryonic development. One of these photoconvertible proteins called Kaede, from the stony coral Trachyphyllia geoffroyi, undergoes irreversible photoconversion from green to red fluorescence when illuminated with UV light. Undertaking a cell tracing approach using photoconvertible proteins can be challenging when using unconventional animal models. In this protocol, we describe the use of Kaede to track specific cells during embryogenesis of the cephalochordate Branchiostoma lanceolatum. This protocol can be adapted to other unconventional models, especially marine animals.
    MeSH term(s) Animals ; Anthozoa/metabolism ; Green Fluorescent Proteins/metabolism ; Lancelets ; Luminescent Proteins/metabolism ; Ultraviolet Rays
    Chemical Substances Luminescent Proteins ; Green Fluorescent Proteins (147336-22-9)
    Language English
    Publishing date 2022-09-27
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0275193
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Functions of the FGF signalling pathway in cephalochordates provide insight into the evolution of the prechordal plate.

    Meister, Lydvina / Escriva, Hector / Bertrand, Stéphanie

    Development (Cambridge, England)

    2022  Volume 149, Issue 10

    Abstract: The fibroblast growth factor (FGF) signalling pathway plays various roles during vertebrate embryogenesis, from mesoderm formation to brain patterning. This diversity of functions relies on the fact that vertebrates possess the largest FGF gene ... ...

    Abstract The fibroblast growth factor (FGF) signalling pathway plays various roles during vertebrate embryogenesis, from mesoderm formation to brain patterning. This diversity of functions relies on the fact that vertebrates possess the largest FGF gene complement among metazoans. In the cephalochordate amphioxus, which belongs to the chordate clade together with vertebrates and tunicates, we have previously shown that the main role of FGF during early development is the control of rostral somite formation. Inhibition of this signalling pathway induces the loss of these structures, resulting in an embryo without anterior segmented mesoderm, as in the vertebrate head. Here, by combining several approaches, we show that the anterior presumptive paraxial mesoderm cells acquire an anterior axial fate when FGF signal is inhibited and that they are later incorporated in the anterior notochord. Our analysis of notochord formation in wild type and in embryos in which FGF signalling is inhibited also reveals that amphioxus anterior notochord presents transient prechordal plate features. Altogether, our results give insight into how changes in FGF functions during chordate evolution might have participated to the emergence of the complex vertebrate head.
    MeSH term(s) Animals ; Fibroblast Growth Factors/genetics ; Fibroblast Growth Factors/metabolism ; Gene Expression Regulation, Developmental ; Lancelets/genetics ; Lancelets/metabolism ; Mesoderm/metabolism ; Notochord/metabolism ; Somites/metabolism ; Vertebrates/metabolism
    Chemical Substances Fibroblast Growth Factors (62031-54-3)
    Language English
    Publishing date 2022-05-16
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 90607-4
    ISSN 1477-9129 ; 0950-1991
    ISSN (online) 1477-9129
    ISSN 0950-1991
    DOI 10.1242/dev.200252
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Asymmetron lucayanum: How many species are valid?

    Subirana, Lucie / Farstey, Viviana / Bertrand, Stephanie / Escriva, Hector

    PloS one

    2020  Volume 15, Issue 3, Page(s) e0229119

    Abstract: The cephalochordates amphioxus or lancelets are benthic marine animals representing the earliest divergent evolutionary lineage within chordates. Although amphioxus are present in most of the world's tropical and temperate oceans, only about thirty ... ...

    Abstract The cephalochordates amphioxus or lancelets are benthic marine animals representing the earliest divergent evolutionary lineage within chordates. Although amphioxus are present in most of the world's tropical and temperate oceans, only about thirty different species grouped into three different genera, Branchiostoma, Epigonichthys and Asymmetron have been described. In the genus Asymmetron, only two species have been characterized, although for one of them, A. lucayanum, several cryptic lineages exist. In this work we have sequenced and analyzed the mitogenome of an A. lucayanum population previously described in the Red Sea. The phylogenetic study using this complete mitogenome as well as the analysis of COI gene sequences of several individuals of this Red Sea population show that the Red Sea population is a new cryptic species. We propose to call this new species Asymmetron rubrum.
    MeSH term(s) Animals ; Biological Evolution ; Cephalochordata/classification ; Cephalochordata/genetics ; Cephalochordata/growth & development ; DNA, Mitochondrial/analysis ; DNA, Mitochondrial/genetics ; Electron Transport Complex IV/genetics ; Genetic Speciation ; Genome, Mitochondrial ; Larva ; Phylogeny ; Species Specificity
    Chemical Substances DNA, Mitochondrial ; Electron Transport Complex IV (EC 1.9.3.1)
    Language English
    Publishing date 2020-03-04
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1932-6203
    ISSN (online) 1932-6203
    DOI 10.1371/journal.pone.0229119
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Diversity of Modes of Reproduction and Sex Determination Systems in Invertebrates, and the Putative Contribution of Genetic Conflict.

    Picard, Marion Anne Lise / Vicoso, Beatriz / Bertrand, Stéphanie / Escriva, Hector

    Genes

    2021  Volume 12, Issue 8

    Abstract: About eight million animal species are estimated to live on Earth, and all except those belonging to one subphylum are invertebrates. Invertebrates are incredibly diverse in their morphologies, life histories, and in the range of the ecological niches ... ...

    Abstract About eight million animal species are estimated to live on Earth, and all except those belonging to one subphylum are invertebrates. Invertebrates are incredibly diverse in their morphologies, life histories, and in the range of the ecological niches that they occupy. A great variety of modes of reproduction and sex determination systems is also observed among them, and their mosaic-distribution across the phylogeny shows that transitions between them occur frequently and rapidly. Genetic conflict in its various forms is a long-standing theory to explain what drives those evolutionary transitions. Here, we review (1) the different modes of reproduction among invertebrate species, highlighting sexual reproduction as the probable ancestral state; (2) the paradoxical diversity of sex determination systems; (3) the different types of genetic conflicts that could drive the evolution of such different systems.
    MeSH term(s) Animals ; Biological Evolution ; Female ; Invertebrates/genetics ; Male ; Models, Biological ; Reproduction/genetics ; Sex Determination Processes
    Language English
    Publishing date 2021-07-27
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 2527218-4
    ISSN 2073-4425 ; 2073-4425
    ISSN (online) 2073-4425
    ISSN 2073-4425
    DOI 10.3390/genes12081136
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Diversity of Modes of Reproduction and Sex Determination Systems in Invertebrates, and the Putative Contribution of Genetic Conflict

    Picard, Marion Anne Lise / Vicoso, Beatriz / Bertrand, Stéphanie / Escriva, Hector

    Genes. 2021 July 27, v. 12, no. 8

    2021  

    Abstract: About eight million animal species are estimated to live on Earth, and all except those belonging to one subphylum are invertebrates. Invertebrates are incredibly diverse in their morphologies, life histories, and in the range of the ecological niches ... ...

    Abstract About eight million animal species are estimated to live on Earth, and all except those belonging to one subphylum are invertebrates. Invertebrates are incredibly diverse in their morphologies, life histories, and in the range of the ecological niches that they occupy. A great variety of modes of reproduction and sex determination systems is also observed among them, and their mosaic-distribution across the phylogeny shows that transitions between them occur frequently and rapidly. Genetic conflict in its various forms is a long-standing theory to explain what drives those evolutionary transitions. Here, we review (1) the different modes of reproduction among invertebrate species, highlighting sexual reproduction as the probable ancestral state; (2) the paradoxical diversity of sex determination systems; (3) the different types of genetic conflicts that could drive the evolution of such different systems.
    Keywords invertebrates ; phylogeny ; sex determination ; sexual reproduction
    Language English
    Dates of publication 2021-0727
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2527218-4
    ISSN 2073-4425
    ISSN 2073-4425
    DOI 10.3390/genes12081136
    Database NAL-Catalogue (AGRICOLA)

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