0000000001302936
AUTHOR
Lars Podsiadlowski
Phylogenetic analyses of endoparasitic Acanthocephala based on mitochondrial genomes suggest secondary loss of sensory organs
The metazoan taxon Syndermata (Monogononta, Bdelloidea, Seisonidea, Acanthocephala) comprises species with vastly different lifestyles. The focus of this study is on the phylogeny within the syndermatan subtaxon Acanthocephala (thorny-headed worms, obligate endoparasites). In order to investigate the controversially discussed phylogenetic relationships of acanthocephalan subtaxa we have sequenced the mitochondrial (mt) genomes of Echinorhynchus truttae (Palaeacanthocephala), Paratenuisentis ambiguus (Eoacanthocephala), Macracanthorhynchus hirudinaceus (Archiacanthocephala), and Philodina citrina (Bdelloidea). In doing so, we present the largest molecular phylogenetic dataset so far for this…
Additional file 1: Figure S1. of Transcriptomic data from panarthropods shed new light on the evolution of insulator binding proteins in insects
Tracing the evolutionary origin of CTCF with ancestral state reconstruction. Figure S2. Tracing the evolutionary origin of Su(Hw) with ancestral state reconstruction. Figure S3. Tracing the evolutionary origin of CP190 with ancestral state reconstruction. Figure S4. Tracing the evolutionary origin of GAF with ancestral state reconstruction. Figure S5. Tracing the evolutionary origin of Pita with ancestral state reconstruction. Figure S6. Tracing the evolutionary origin of Mod(mdg4) with ancestral state reconstruction. Figure S7. Tracing the evolutionary origin of Zw5 with ancestral state reconstruction. Figure S8. Phylogenetic gene tree of CTCF orthologs. Figure S9. Phylogenetic gene tree o…
Platyzoan mitochondrial genomes.
Platyzoa is a putative lophotrochozoan (spiralian) subtaxon within the protostome clade of Metazoa, comprising a range of biologically diverse, mostly small worm-shaped animals. The monophyly of Platyzoa, the relationships between the putative subgroups Platyhelminthes, Gastrotricha and Gnathifera (the latter comprising at least Gnathostomulida, "Rotifera" and Acanthocephala) as well as some aspects of the internal phylogenies of these subgroups are highly debated. Here we review how complete mitochondrial (mt) genome data contribute to these debates. We highlight special features of the mt genomes and discuss problems in mtDNA phylogenies of the clade. Mitochondrial genome data seem to be …
Transcriptomic data from panarthropods shed new light on the evolution of insulator binding proteins in insects : Insect insulator proteins.
Background Body plan development in multi-cellular organisms is largely determined by homeotic genes. Expression of homeotic genes, in turn, is partially regulated by insulator binding proteins (IBPs). While only a few enhancer blocking IBPs have been identified in vertebrates, the common fruit fly Drosophila melanogaster harbors at least twelve different enhancer blocking IBPs. We screened recently compiled insect transcriptomes from the 1KITE project and genomic and transcriptomic data from public databases, aiming to trace the origin of IBPs in insects and other arthropods. Results Our study shows that the last common ancestor of insects (Hexapoda) already possessed a substantial number …
Transcriptomic data from panarthropods shed new light on the evolution of insulator binding proteins in insects
BACKGROUND: Body plan development in multi-cellular organisms is largely determined by homeotic genes. Expression of homeotic genes, in turn, is partially regulated by insulator binding proteins (IBPs). While only a few enhancer blocking IBPs have been identified in vertebrates, the common fruit fly Drosophila melanogaster harbors at least twelve different enhancer blocking IBPs. We screened recently compiled insect transcriptomes from the 1KITE project and genomic and transcriptomic data from public databases, aiming to trace the origin of IBPs in insects and other arthropods. RESULTS: Our study shows that the last common ancestor of insects (Hexapoda) already possessed a substantial numbe…
Additional file 1: Figure S1. of Transcriptomic data from panarthropods shed new light on the evolution of insulator binding proteins in insects
Tracing the evolutionary origin of CTCF with ancestral state reconstruction. Figure S2. Tracing the evolutionary origin of Su(Hw) with ancestral state reconstruction. Figure S3. Tracing the evolutionary origin of CP190 with ancestral state reconstruction. Figure S4. Tracing the evolutionary origin of GAF with ancestral state reconstruction. Figure S5. Tracing the evolutionary origin of Pita with ancestral state reconstruction. Figure S6. Tracing the evolutionary origin of Mod(mdg4) with ancestral state reconstruction. Figure S7. Tracing the evolutionary origin of Zw5 with ancestral state reconstruction. Figure S8. Phylogenetic gene tree of CTCF orthologs. Figure S9. Phylogenetic gene tree o…
Mitochondrial genome sequence and gene order of Sipunculus nudus give additional support for an inclusion of Sipuncula into Annelida.
Abstract Background Mitochondrial genomes are a valuable source of data for analysing phylogenetic relationships. Besides sequence information, mitochondrial gene order may add phylogenetically useful information, too. Sipuncula are unsegmented marine worms, traditionally placed in their own phylum. Recent molecular and morphological findings suggest a close affinity to the segmented Annelida. Results The first complete mitochondrial genome of a member of Sipuncula, Sipunculus nudus, is presented. All 37 genes characteristic for metazoan mtDNA were detected and are encoded on the same strand. The mitochondrial gene order (protein-coding and ribosomal RNA genes) resembles that of annelids, b…
Additional file 2: Table S1. of Transcriptomic data from panarthropods shed new light on the evolution of insulator binding proteins in insects
BUSCO assessment of the 1KITE transcriptomes. (XLS 21 kb)
Additional file 3: Table S2. of Transcriptomic data from panarthropods shed new light on the evolution of insulator binding proteins in insects
NCBI accession numbers of transcriptome and genome data. (XLS 35 kb)
Additional file 3: Table S2. of Transcriptomic data from panarthropods shed new light on the evolution of insulator binding proteins in insects
NCBI accession numbers of transcriptome and genome data. (XLS 35 kb)
Data from: Transcriptomic data from panarthropods shed new light on the evolution of insulator binding proteins in insects
Background Body plan development in multi-cellular organisms is largely determined by homeotic genes. Expression of homeotic genes, in turn, is partially regulated by insulator binding proteins (IBPs). While only a few enhancer blocking IBPs have been identified in vertebrates, the common fruit fly Drosophila melanogaster harbors at least twelve different enhancer blocking IBPs. We screened recently compiled insect transcriptomes from the 1KITE project and genomic and transcriptomic data from public databases, aiming to trace the origin of IBPs in insects and other arthropods. Results Our study shows that the last common ancestor of insects (Hexapoda) already possessed a substantial number …
Additional file 2: Table S1. of Transcriptomic data from panarthropods shed new light on the evolution of insulator binding proteins in insects
BUSCO assessment of the 1KITE transcriptomes. (XLS 21 kb)