Prpic-Schäper, Nikola-Michael

[["dc.bibliographiccitation.artnumber","e104885"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","PLoS ONE"],["dc.bibliographiccitation.volume","9"],["dc.contributor.author","Posnien, Nico"],["dc.contributor.author","Zeng, Victor"],["dc.contributor.author","Schwager, Evelyn E."],["dc.contributor.author","Pechmann, Matthias"],["dc.contributor.author","Hilbrant, Maarten"],["dc.contributor.author","Keefe, Joseph D."],["dc.contributor.author","Damen, Wim G. M."],["dc.contributor.author","Prpic, Nikola-Michael"],["dc.contributor.author","McGregor, Alistair P."],["dc.contributor.author","Extavour, Cassandra G."],["dc.date.accessioned","2018-11-07T09:36:37Z"],["dc.date.available","2018-11-07T09:36:37Z"],["dc.date.issued","2014"],["dc.description.abstract","Parasteatoda tepidariorum is an increasingly popular model for the study of spider development and the evolution of development more broadly. However, fully understanding the regulation and evolution of P. tepidariorum development in comparison to other animals requires a genomic perspective. Although research on P. tepidariorum has provided major new insights, gene analysis to date has been limited to candidate gene approaches. Furthermore, the few available EST collections are based on embryonic transcripts, which have not been systematically annotated and are unlikely to contain transcripts specific to post-embryonic stages of development. We therefore generated cDNA from pooled embryos representing all described embryonic stages, as well as post-embryonic stages including nymphs, larvae and adults, and using Illumina HiSeq technology obtained a total of 625,076,514 100-bp paired end reads. We combined these data with 24,360 ESTs available in GenBank, and 1,040,006 reads newly generated from 454 pyrosequencing of a mixed-stage embryo cDNA library. The combined sequence data were assembled using a custom de novo assembly strategy designed to optimize assembly product length, number of predicted transcripts, and proportion of raw reads incorporated into the assembly. The de novo assembly generated 446,427 contigs with an N50 of 1,875 bp. These sequences obtained 62,799 unique BLAST hits against the NCBI non-redundant protein data base, including putative orthologs to 8,917 Drosophila melanogaster genes based on best reciprocal BLAST hit identity compared with the D. melanogaster proteome. Finally, we explored the utility of the transcriptome for RNA-Seq studies, and showed that this resource can be used as a mapping scaffold to detect differential gene expression in different cDNA libraries. This resource will therefore provide a platform for future genomic, gene expression and functional approaches using P. tepidariorum."],["dc.description.sponsorship","Open Access Publikationsfonds 2014"],["dc.identifier.doi","10.1371/journal.pone.0104885"],["dc.identifier.isi","000340900600099"],["dc.identifier.pmid","25118601"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/10635"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/32658"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Public Library Science"],["dc.relation.issn","1932-6203"],["dc.rights","CC BY 2.5"],["dc.rights.uri","https://creativecommons.org/licenses/by/2.5"],["dc.title","A Comprehensive Reference Transcriptome Resource for the Common House Spider Parasteatoda tepidariorum"],["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.artnumber","5"],["dc.bibliographiccitation.journal","EvoDevo"],["dc.bibliographiccitation.volume","2"],["dc.contributor.author","Janssen, Ralf"],["dc.contributor.author","Budd, Graham E."],["dc.contributor.author","Prpic, Nikola-Michael"],["dc.contributor.author","Damen, Wim G. M."],["dc.date.accessioned","2018-11-07T09:00:09Z"],["dc.date.available","2018-11-07T09:00:09Z"],["dc.date.issued","2011"],["dc.description.abstract","Background: Segmentation is a hallmark of the arthropods; most knowledge about the molecular basis of arthropod segmentation comes from work on the fly Drosophila melanogaster. In this species a hierarchic cascade of segmentation genes subdivides the blastoderm stepwise into single segment wide regions. However, segmentation in the fly is a derived feature since all segments form virtually simultaneously. Conversely, in the vast majority of arthropods the posterior segments form one at a time from a posterior pre-segmental zone. The pair rule genes (PRGs) comprise an important level of the Drosophila segmentation gene cascade and are indeed the first genes that are expressed in typical transverse stripes in the early embryo. Information on expression and function of PRGs outside the insects, however, is scarce. Results: Here we present the expression of the pair rule gene orthologs in the pill millipede Glomeris marginata (Myriapoda: Diplopoda). We find evidence that these genes are involved in segmentation and that components of the hierarchic interaction of the gene network as found in insects may be conserved. We further provide evidence that segments are formed in a single-segment periodicity rather than in pairs of two like in another myriapod, the centipede Strigamia maritima. Finally we show that decoupling of dorsal and ventral segmentation in Glomeris appears already at the level of the PRGs. Conclusions: Although the pair rule gene network is partially conserved among insects and myriapods, some aspects of PRG interaction are, as suggested by expression pattern analysis, convergent, even within the Myriapoda. Conserved expression patterns of PRGs in insects and myriapods, however, may represent ancestral features involved in segmenting the arthropod ancestor."],["dc.identifier.doi","10.1186/2041-9139-2-5"],["dc.identifier.isi","000310693900005"],["dc.identifier.pmid","21352542"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/5995"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/24084"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Biomed Central Ltd"],["dc.relation.issn","2041-9139"],["dc.rights","CC BY 2.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/2.0"],["dc.title","Expression of myriapod pair rule gene orthologs"],["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.artnumber","e1002342"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","PLoS Genetics"],["dc.bibliographiccitation.volume","7"],["dc.contributor.author","Pechmann, Matthias"],["dc.contributor.author","Khadjeh, Sara"],["dc.contributor.author","Turetzek, Natascha"],["dc.contributor.author","McGregor, Alistair P."],["dc.contributor.author","Damen, Wim G. M."],["dc.contributor.author","Prpic, Nikola-Michael"],["dc.date.accessioned","2018-11-07T08:51:00Z"],["dc.date.available","2018-11-07T08:51:00Z"],["dc.date.issued","2011"],["dc.description.abstract","Despite many aspects of the regulation of segmentation being conserved among arthropods, the evolution of novel gene functions has played an important role in the evolution of developmental regulation and the emergence of new segmental structures. Moreover the study of such novel gene functions can be informative with respect to the patterns and direction of evolutionary changes in developmental programs. The homeobox gene Distal-less (Dll) is known for its conserved function in appendage development in metazoans. In arthropods, Dll is required for the specification of distal appendage structures. Here we describe a novel and unexpected role of Dll in the spider Achaearanea tepidariorum. We detect At-Dll transcripts not only in the appendages, but unexpectedly also in an anterior domain during early development, prior to the specification of the limb primordia. A similar early Dll domain is present in the distantly related spider Pholcus phalangioides. In A. tepidariorum this early At-Dll expression is required for head segmentation. RNA interference results in spiders that lack either the first or the first and the second walking leg segments. The early At-Dll expression is also required for the activation of the segment polarity genes engrailed and hedgehog in this region. Our work identifies the Distal-less gene as a novel factor in anterior spider segmentation with a gap gene-like function. This novel role of Dll is interesting because Dll expression is reduced in this region in crustaceans and the homologous insect segment, the mandible segment, does not express Dll and does not require this gene for patterning. We therefore discuss the possible implications of our results for understanding the evolution and diversification of the mandible segment."],["dc.identifier.doi","10.1371/journal.pgen.1002342"],["dc.identifier.isi","000296665400041"],["dc.identifier.pmid","22028676"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/8016"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/21829"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Public Library Science"],["dc.relation.issn","1553-7390"],["dc.rights","CC BY 2.5"],["dc.rights.uri","https://creativecommons.org/licenses/by/2.5"],["dc.title","Novel Function of Distal-less as a Gap Gene during Spider Segmentation"],["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"]]