Jackson, Daniel John

[["dc.bibliographiccitation.firstpage","221"],["dc.bibliographiccitation.issue","7-8"],["dc.bibliographiccitation.journal","Development Genes and Evolution"],["dc.bibliographiccitation.lastpage","234"],["dc.bibliographiccitation.volume","220"],["dc.contributor.author","Jackson, Daniel John"],["dc.contributor.author","Meyer, Neva P."],["dc.contributor.author","Seaver, Elaine"],["dc.contributor.author","Pang, Kevin"],["dc.contributor.author","McDougall, Carmel"],["dc.contributor.author","Moy, Vanessa N."],["dc.contributor.author","Gordon, Kacy"],["dc.contributor.author","Degnan, Bernard M."],["dc.contributor.author","Martindale, Mark Q."],["dc.contributor.author","Burke, Robert D."],["dc.contributor.author","Peterson, Kevin J."],["dc.date.accessioned","2018-11-07T08:36:07Z"],["dc.date.available","2018-11-07T08:36:07Z"],["dc.date.issued","2010"],["dc.description.abstract","The transcription factor COE (collier/olfactory-1/early B cell factor) is an unusual basic helix-loop-helix transcription factor as it lacks a basic domain and is maintained as a single copy gene in the genomes of all currently analysed non-vertebrate Metazoan genomes. Given the unique features of the COE gene, its proposed ancestral role in the specification of chemosensory neurons and the wealth of functional data from vertebrates and Drosophila, the evolutionary history of the COE gene can be readily investigated. We have examined the ways in which COE expression has diversified among the Metazoa by analysing its expression from representatives of four disparate invertebrate phyla: Ctenophora (Mnemiopsis leidyi); Mollusca (Haliotis asinina); Annelida (Capitella teleta and Chaetopterus) and Echinodermata (Strongylocentrotus purpuratus). In addition, we have studied COE function with knockdown experiments in S. purpuratus, which indicate that COE is likely to be involved in repressing serotonergic cell fate in the apical ganglion of dipleurula larvae. These analyses suggest that COE has played an important role in the evolution of ectodermally derived tissues (likely primarily nervous tissues) and mesodermally derived tissues. Our results provide a broad evolutionary foundation from which further studies aimed at the functional characterisation and evolution of COE can be investigated."],["dc.identifier.doi","10.1007/s00427-010-0343-3"],["dc.identifier.isi","000284550300004"],["dc.identifier.pmid","21069538"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/5978"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/18236"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","0949-944X"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Developmental expression of COE across the Metazoa supports a conserved role in neuronal cell-type specification and mesodermal development"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1893"],["dc.bibliographiccitation.issue","5833"],["dc.bibliographiccitation.journal","Science"],["dc.bibliographiccitation.lastpage","1895"],["dc.bibliographiccitation.volume","316"],["dc.contributor.author","Jackson, Daniel John"],["dc.contributor.author","Macis, Luciana"],["dc.contributor.author","Reitner, Joachim"],["dc.contributor.author","Degnan, Bernard M."],["dc.contributor.author","Wörheide, Gert"],["dc.date.accessioned","2018-11-07T11:01:22Z"],["dc.date.available","2018-11-07T11:01:22Z"],["dc.date.issued","2007"],["dc.description.abstract","Sponges (phylum Porifera) were prolific reef-building organisms during the Paleozoic and Mesozoic similar to 542 to 65 million years ago. These ancient animals inherited components of the first multicellular skeletogenic toolkit from the last common ancestor of the Metazoa. Using a paleogenomics approach, including gene- and protein-expression techniques and phylogenetic reconstruction, we show that a molecular component of this toolkit was the precursor to the alpha-carbonic anhydrases (alpha-CAs), a gene family used by extant animals in a variety of fundamental physiological processes. We used the coralline demosponge Astrosclera willeyana, a \"living fossil\" that has survived from the Mesozoic, to provide insight into the evolution of the ability to biocalcify, and show that the alpha-CA family expanded from a single ancestral gene through several independent gene- duplication events in sponges and eumetazoans."],["dc.identifier.doi","10.1126/science.1141560"],["dc.identifier.isi","000247602700038"],["dc.identifier.pmid","17540861"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/51136"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","0036-8075"],["dc.title","Sponge paleogenomics reveals an ancient role for carbonic anhydrase in skeletogenesis"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","2959"],["dc.bibliographiccitation.issue","11"],["dc.bibliographiccitation.journal","Molecular Biology and Evolution"],["dc.bibliographiccitation.lastpage","2969"],["dc.bibliographiccitation.volume","34"],["dc.contributor.author","Jackson, Daniel J."],["dc.contributor.author","Reim, Laurin"],["dc.contributor.author","Randow, Clemens"],["dc.contributor.author","Cerveau, Nicolas"],["dc.contributor.author","Degnan, Bernard M."],["dc.contributor.author","Fleck, Claudia"],["dc.date.accessioned","2020-12-10T18:19:33Z"],["dc.date.available","2020-12-10T18:19:33Z"],["dc.date.issued","2017"],["dc.identifier.doi","10.1093/molbev/msx232"],["dc.identifier.eissn","1537-1719"],["dc.identifier.issn","0737-4038"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/75288"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Variation in Orthologous Shell-Forming Proteins Contribute to Molluscan Shell Diversity"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.issue","160"],["dc.bibliographiccitation.journal","BMC evolutionary biology"],["dc.bibliographiccitation.lastpage","17"],["dc.bibliographiccitation.volume","7"],["dc.contributor.author","Jackson, Daniel J."],["dc.contributor.author","Wörheide, Gert"],["dc.contributor.author","Degnan, Bernard M."],["dc.date.accessioned","2019-07-10T08:13:01Z"],["dc.date.available","2019-07-10T08:13:01Z"],["dc.date.issued","2007"],["dc.description.abstract","Background: The Mollusca constitute one of the most morphologically and ecologically diverse metazoan phyla, occupying a wide range of marine, terrestrial and freshwater habitats. The evolutionary success of the molluscs can in part be attributed to the evolvability of the external shell. Typically, the shell first forms during embryonic and larval development, changing dramatically in shape, colour and mineralogical composition as development and maturation proceeds. Major developmental transitions in shell morphology often correlate with ecological transitions (e.g. from a planktonic to benthic existence at metamorphosis). While the genes involved in molluscan biomineralisation are beginning to be identified, there is little understanding of how these are developmentally regulated, or if the same genes are operational at different stages of the mollusc's life. Results: Here we relate the developmental expression of nine genes in the tissue responsible for shell production the mantle to ecological transitions that occur during the lifetime of the tropical abalone Haliotis asinina (Vetigastropoda). Four of these genes encode evolutionarily ancient proteins, while four others encode secreted proteins with little or no identity to known proteins. Another gene has been previously described from the mantle of another haliotid vetigastropod. All nine genes display dynamic spatial and temporal expression profiles within the larval shell field and juvenile mantle. Conclusion: These expression data reflect the regulatory complexity that underlies molluscan shell construction from larval stages to adulthood, and serves to highlight the different ecological demands placed on each stage. The use of both ancient and novel genes in all stages of shell construction also suggest that a core set of shell-making genes was provided by a shared metazoan ancestor, which has been elaborated upon to produce the range of molluscan shell types we see today."],["dc.format.mimetype","application/pdf"],["dc.identifier.ppn","55980959X"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/4371"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/61101"],["dc.language.iso","en"],["dc.notes.intern","Migrated from goescholar"],["dc.rights","Goescholar"],["dc.rights.access","openAccess"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject.ddc","576"],["dc.title","Dynamic expression of ancient and novel molluscan shell genes during ecological transitions"],["dc.title.alternative","Research article"],["dc.title.subtitle","Research article"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","67"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Journal of Structural Biology"],["dc.bibliographiccitation.lastpage","74"],["dc.bibliographiccitation.volume","196"],["dc.contributor.author","Jackson, Daniel John"],["dc.contributor.author","Degnan, Bernard M."],["dc.date.accessioned","2018-11-07T10:06:19Z"],["dc.date.available","2018-11-07T10:06:19Z"],["dc.date.issued","2016"],["dc.description.abstract","Biomineralogy is an inherently interdisciplinary pursuit. This largely stems from the fact that techniques used to investigate a given (bio)mineral should ideally be married with techniques that provide insight into the biological mechanisms that form that mineral (and vice versa). We observe two broad challenges that inhibit a fluent exchange of ideas and information between mineralogists/materials scientists and biologists. First, the smorgasbord of emerging and rapidly evolving techniques available to mineralogists and biologists alike make it difficult not only for an expert to remain contemporary, but can be bewildering to the non-expert. Second, to truly integrate and relate a specific biological insight into the genesis of a biomineral, with the effect that insight has on the properties of the mineral itself, is not trivial. We propose that an evolutionary developmental biology (evo-devo) approach can not only address this challenge, it can also provide deep insight into how the rich diversity of metazoan mineralised structures evolved. While an evo-devo approach to biomineralogy has previously been employed by some groups, recent exciting methodological developments available to the molecular biologist now make this strategy even more attractive. In this short review we aim to outline our perception of the role that evo-devo can play within the field of biomineralogy, taking as a case study the past achievements, recent insights and some future research directions associated with gastropod shell formation. (C) 2016 Elsevier Inc. All rights reserved."],["dc.identifier.doi","10.1016/j.jsb.2016.01.005"],["dc.identifier.isi","000389105700002"],["dc.identifier.pmid","26792641"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/39068"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Academic Press Inc Elsevier Science"],["dc.publisher.place","San diego"],["dc.relation.conference","13th International Biomineralization Symposium"],["dc.relation.eventlocation","Granada, SPAIN"],["dc.relation.issn","1095-8657"],["dc.relation.issn","1047-8477"],["dc.title","The importance of evo-devo to an integrated understanding of molluscan biomineralisation"],["dc.type","conference_paper"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","720"],["dc.bibliographiccitation.issue","7307"],["dc.bibliographiccitation.journal","Nature"],["dc.bibliographiccitation.lastpage","726"],["dc.bibliographiccitation.volume","466"],["dc.contributor.author","Srivastava, Mansi"],["dc.contributor.author","Simakov, Oleg"],["dc.contributor.author","Chapman, Jarrod"],["dc.contributor.author","Fahey, Bryony"],["dc.contributor.author","Gauthier, Marie E. A."],["dc.contributor.author","Mitros, Therese"],["dc.contributor.author","Richards, Gemma S."],["dc.contributor.author","Conaco, Cecilia"],["dc.contributor.author","Dacre, Michael"],["dc.contributor.author","Hellsten, Uffe"],["dc.contributor.author","Larroux, Claire"],["dc.contributor.author","Putnam, Nicholas H."],["dc.contributor.author","Stanke, Mario"],["dc.contributor.author","Adamska, Maja"],["dc.contributor.author","Darling, Aaron"],["dc.contributor.author","Degnan, Sandie M."],["dc.contributor.author","Oakley, Todd H."],["dc.contributor.author","Plachetzki, David C."],["dc.contributor.author","Zhai, Yufeng"],["dc.contributor.author","Adamski, Marcin"],["dc.contributor.author","Calcino, Andrew"],["dc.contributor.author","Cummins, Scott F."],["dc.contributor.author","Goodstein, David M."],["dc.contributor.author","Harris, Christina"],["dc.contributor.author","Jackson, Daniel John"],["dc.contributor.author","Leys, Sally P."],["dc.contributor.author","Shu, Shengqiang"],["dc.contributor.author","Woodcroft, Ben J."],["dc.contributor.author","Vervoort, Michel"],["dc.contributor.author","Kosik, Kenneth S."],["dc.contributor.author","Manning, Gerard"],["dc.contributor.author","Degnan, Bernard M."],["dc.contributor.author","Rokhsar, Daniel S."],["dc.date.accessioned","2021-12-06T15:46:30Z"],["dc.date.available","2021-12-06T15:46:30Z"],["dc.date.issued","2010"],["dc.description.abstract","Sponges are an ancient group of animals that diverged from other metazoans over 600 million years ago. Here we present the draft genome sequence of Amphimedon queenslandica, a demosponge from the Great Barrier Reef, and show that it is remarkably similar to other animal genomes in content, structure and organization. Comparative analysis enabled by the sequencing of the sponge genome reveals genomic events linked to the origin and early evolution of animals, including the appearance, expansion and diversification of pan-metazoan transcription factor, signalling pathway and structural genes. This diverse 'toolkit' of genes correlates with critical aspects of all metazoan body plans, and comprises cell cycle control and growth, development, somatic- and germ-cell specification, cell adhesion, innate immunity and allorecognition. Notably, many of the genes associated with the emergence of animals are also implicated in cancer, which arises from defects in basic processes associated with metazoan multicellularity."],["dc.identifier.doi","10.1038/nature09201"],["dc.identifier.pmid","20686567"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/95275"],["dc.language.iso","en"],["dc.relation.eissn","1476-4687"],["dc.relation.issn","0028-0836"],["dc.relation.issn","1476-4687"],["dc.relation.orgunit","Abteilung Geobiologie"],["dc.title","The Amphimedon queenslandica genome and the evolution of animal complexity"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","54"],["dc.bibliographiccitation.journal","Proteome Science"],["dc.bibliographiccitation.volume","8"],["dc.contributor.author","Marie, Benjamin"],["dc.contributor.author","Marie, Arul"],["dc.contributor.author","Jackson, Daniel John"],["dc.contributor.author","Dubost, Lionel"],["dc.contributor.author","Degnan, Bernard M."],["dc.contributor.author","Milet, Christian"],["dc.contributor.author","Marin, Frederic"],["dc.date.accessioned","2018-11-07T08:37:05Z"],["dc.date.available","2018-11-07T08:37:05Z"],["dc.date.issued","2010"],["dc.description.abstract","Background: The formation of the molluscan shell is regulated to a large extent by a matrix of extracellular macromolecules that are secreted by the shell forming tissue, the mantle. This so called \"calcifying matrix\" is a complex mixture of proteins and glycoproteins that is assembled and occluded within the mineral phase during the calcification process. While the importance of the calcifying matrix to shell formation has long been appreciated, most of its protein components remain uncharacterised. Results: Recent expressed sequence tag (EST) investigations of the mantle tissue from the tropical abalone (Haliotis asinina) provide an opportunity to further characterise the proteins in the shell by a proteomic approach. In this study, we have identified a total of 14 proteins from distinct calcified layers of the shell. Only two of these proteins have been previously characterised from abalone shells. Among the novel proteins are several glutamine-and methionine-rich motifs and hydrophobic glycine-, alanine-and acidic aspartate-rich domains. In addition, two of the new proteins contained Kunitz-like and WAP (whey acidic protein) protease inhibitor domains. Conclusion: This is one of the first comprehensive proteomic study of a molluscan shell, and should provide a platform for further characterization of matrix protein functions and interactions."],["dc.identifier.doi","10.1186/1477-5956-8-54"],["dc.identifier.isi","000284483200001"],["dc.identifier.pmid","21050442"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/5735"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/18450"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Biomed Central Ltd"],["dc.relation.issn","1477-5956"],["dc.rights","CC BY 2.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/2.0"],["dc.title","Proteomic analysis of the organic matrix of the abalone Haliotis asinina calcified shell"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1006"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Molecular Ecology"],["dc.bibliographiccitation.lastpage","1025"],["dc.bibliographiccitation.volume","18"],["dc.contributor.author","Williams, Elizabeth A."],["dc.contributor.author","Degnan, Bernard M."],["dc.contributor.author","Gunter, Helen"],["dc.contributor.author","Jackson, Daniel John"],["dc.contributor.author","Woodcroft, Ben J."],["dc.contributor.author","Degnan, Sandie M."],["dc.date.accessioned","2018-11-07T08:32:21Z"],["dc.date.available","2018-11-07T08:32:21Z"],["dc.date.issued","2009"],["dc.description.abstract","Larval settlement is a vital transition period for marine invertebrates and can have far-reaching effects on the ecology and evolution of a species. To explore the molecular mechanisms of this critical process in a nonmodel organism, the abalone Haliotis asinina, we employed cDNA microarrays. By comparing gene expression profiles through mid- to late larval development and metamorphosis, we identified 144 genes as candidates for a role in competence and/or metamorphosis. Gene characterization indicates similar to 60% of these are significantly similar to known genes from other taxa, while similar to 40% are novel. A high 49.3% of genes are gastropod or abalone specific, but none appears to be Lophotrochozoan specific, even though metamorphosis is thought to have had a separate origin in this group. Differentially expressed larval and postlarval genes can be clustered into five categories that reveal strikingly different temporal transcriptional patterns occurring during this phase of development. Some gene activation is contingent upon exogenous cues and correlates with initiation of settlement. Importantly, there is also extensive gene activity associated with the endogenous attainment of competence, which occurs before, and independent of, the exogenous induction of settlement. Our results show that as the haliotid veliger larva matures, it requires coordinated regulation of temporally different batteries of genes involved in a wide range of physiological and developmental processes associated with benthic colonization. Although the signalling pathways operating at metamorphosis may be conserved across the animal kingdom, it appears they regulate the expression of novel genes specific to abalone, gastropods and molluscs during H. asinina metamorphosis."],["dc.description.sponsorship","Australian Research Council"],["dc.identifier.doi","10.1111/j.1365-294X.2008.04078.x"],["dc.identifier.isi","263521800020"],["dc.identifier.pmid","19207244"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/17323"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell Publishing, Inc"],["dc.relation.issn","0962-1083"],["dc.title","Widespread transcriptional changes pre-empt the critical pelagic-benthic transition in the vetigastropod Haliotis asinina"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","591"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Molecular Biology and Evolution"],["dc.bibliographiccitation.lastpage","608"],["dc.bibliographiccitation.volume","27"],["dc.contributor.author","Jackson, Daniel John"],["dc.contributor.author","McDougall, Carmel"],["dc.contributor.author","Woodcroft, Ben J."],["dc.contributor.author","Moase, Patrick"],["dc.contributor.author","Rose, Robert A."],["dc.contributor.author","Kube, Michael"],["dc.contributor.author","Reinhardt, Richard"],["dc.contributor.author","Rokhsar, Daniel S."],["dc.contributor.author","Montagnani, Caroline"],["dc.contributor.author","Joubert, Caroline"],["dc.contributor.author","Piquemal, David"],["dc.contributor.author","Degnan, Bernard M."],["dc.date.accessioned","2018-11-07T08:45:34Z"],["dc.date.available","2018-11-07T08:45:34Z"],["dc.date.issued","2010"],["dc.description.abstract","The capacity to biomineralize is closely linked to the rapid expansion of animal life during the early Cambrian, with many skeletonized phyla first appearing in the fossil record at this time. The appearance of disparate molluscan forms during this period leaves open the possibility that shells evolved independently and in parallel in at least some groups. To test this proposition and gain insight into the evolution of structural genes that contribute to shell fabrication, we compared genes expressed in nacre (mother-of-pearl) forming cells in the mantle of the bivalve Pinctada maxima and the gastropod Haliotis asinina. Despite both species having highly lustrous nacre, we find extensive differences in these expressed gene sets. Following the removal of housekeeping genes, less than 10% of all gene clusters are shared between these molluscs, with some being conserved biomineralization genes that are also found in deuterostomes. These differences extend to secreted proteins that may localize to the organic shell matrix, with less than 15% of this secretome being shared. Despite these differences, H. asinina and P. maxima both secrete proteins with repetitive low-complexity domains (RLCDs). Pinctada maxima RLCD proteins-for example, the shematrins-are predominated by silk/fibroin-like domains, which are absent from the H. asinina data set. Comparisons of shematrin genes across three species of Pinctada indicate that this gene family has undergone extensive divergent evolution within pearl oysters. We also detect fundamental bivalve-gastropod differences in extracellular matrix proteins involved in mollusc-shell formation. Pinctada maxima expresses a chitin synthase at high levels and several chitin deacetylation genes, whereas only one protein involved in chitin interactions is present in the H. asinina data set, suggesting that the organic matrix on which calcification proceeds differs fundamentally between these species. Large-scale differences in genes expressed in nacre-forming cells of Pinctada and Haliotis are compatible with the hypothesis that gastropod and bivalve nacre is the result of convergent evolution. The expression of novel biomineralizing RLCD proteins in each of these two molluscs and, interestingly, sea urchins suggests that the evolution of such structural proteins has occurred independently multiple times in the Metazoa."],["dc.identifier.doi","10.1093/molbev/msp278"],["dc.identifier.isi","000274786900010"],["dc.identifier.pmid","19915030"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/20476"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Oxford Univ Press"],["dc.relation.issn","0737-4038"],["dc.title","Parallel Evolution of Nacre Building Gene Sets in Molluscs"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","2"],["dc.bibliographiccitation.journal","Frontiers in Zoology"],["dc.bibliographiccitation.volume","9"],["dc.contributor.author","Jackson, Daniel John"],["dc.contributor.author","Degnan, Sandie M."],["dc.contributor.author","Degnan, Bernard M."],["dc.date.accessioned","2018-11-07T09:13:24Z"],["dc.date.available","2018-11-07T09:13:24Z"],["dc.date.issued","2012"],["dc.description.abstract","Introduction: Inter-specific comparisons of metazoan developmental mechanisms have provided a wealth of data concerning the evolution of body form and the generation of morphological novelty. Conversely, studies of intra-specific variation in developmental programs are far fewer. Variation in the rate of development may be an advantage to the many marine invertebrates that posses a biphasic life cycle, where fitness commonly requires the recruitment of planktonically dispersing larvae to patchily distributed benthic environments. Results: We have characterised differences in the rate of development between individuals originating from a synchronised fertilisation event in the tropical abalone Haliotis asinina, a broadcast spawning lecithotrophic vetigastropod. We observed significant differences in the time taken to complete early developmental events (time taken to complete third cleavage and to hatch from the vitelline envelope), mid-larval events (variation in larval shell development) and late larval events (the acquisition of competence to respond to a metamorphosis inducing cue). We also provide estimates of the variation in maternally provided energy reserves that suggest maternal provisioning is unlikely to explain the majority of the variation in developmental rate we report here. Conclusions: Significant differences in the rates of development exist both within and between cohorts of synchronously fertilised H. asinina gametes. These differences can be detected shortly after fertilisation and generate larvae of increasingly divergent development states. We discuss the significance of our results within an ecological context, the adaptive significance of mechanisms that might maintain this variation, and potential sources of this variation."],["dc.description.sponsorship","Open-Access-Publikationsfonds 2012"],["dc.identifier.doi","10.1186/1742-9994-9-2"],["dc.identifier.isi","000302057900001"],["dc.identifier.pmid","22339806"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/7407"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/27165"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Biomed Central Ltd"],["dc.relation.issn","1742-9994"],["dc.relation.orgunit","Fakultät für Geowissenschaften und Geographie"],["dc.rights","CC BY 2.0"],["dc.rights.uri","http://creativecommons.org/licenses/by/2.0"],["dc.title","Variation in rates of early development in Haliotis asinina generate competent larvae of different ages"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]