18 research outputs found

    MI 740 Introduction to Christian Mission

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    Roger E. Hedlund, The Mission of the Church in the World: A Bibical Theology. Grand Rapids, MI: Baker Baker House, 1991. Charles Van Engen, Mission on the Way: Issues in Mission Theology. Grand Rapids, MI: Baker Book House, 1996. J. Herbert Kane, A Concise History of Christian World Mission, Grand Rapids, MI: Baker Book House, 1978. Gailyn Van Rheenen, Missions: Biblical Foundations and Contemporary Strategies. Grand Rapids, MI: Zondervan Publishing Co., 1996. Vincent Donovan, Christianity Rediscovered. Maryknoll, NY: Orbis Books, 1991. Bruce E. Olson, Bruchko. Carol Stream, IL: Creation Press, 1973. James M. Phillips and Robert T. Coote, Toward the 21st Century in Christian Mission, Grand Rapids, MI: Wm. B. Eerdmans, 1993. Darrell Whiteman, Anthropology and Mission: The Incarnational Connection. 2003. Copies can be purchased through the ESJ School of World Mission and Evangelism. Call Julie at 859-858-2259. Cost is $2 plus posage.https://place.asburyseminary.edu/syllabi/2853/thumbnail.jp

    MI 740 XL Introduction to Christian Mission

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    Roger E. Hedlund, The Mission of the Church in the World: A Bibical Theology. Grand Rapids, MI: Baker Baker House, 1991. Charles Van Engen, Mission on the Way: Issues in Mission Theology. Grand Rapids, MI: Baker Book House, 1996. J. Herbert Kane, A Concise History of Christian World Mission, Grand Rapids, MI: Baker Book House, 1978. Gailyn Van Rheenen, Missions: Biblical Foundations and Contemporary Strategies. Grand Rapids, MI: Zondervan Publishing Co., 1996. Vincent Donovan, Christianity Rediscovered. Maryknoll, NY: Orbis Books, 1991. Bruce E. Olson, Bruchko. Carol Stream, IL: Creation Press, 1973. James M. Phillips and Robert T. Coote, Toward the 21st Century in Christian Mission, Grand Rapids, MI: Wm. B. Eerdmans, 1993. Darrell Whiteman, Anthropology and Mission: The Incarnational Connection.https://place.asburyseminary.edu/syllabi/2456/thumbnail.jp

    Pennsylvania Folklife Vol. 10, No. 2

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    • Cutting-Up for Fancy • English-Language Folk Culture in Pennsylvania • The Bench Versus the Catechism: Revivalism and Pennsylvania\u27s Lutheran and Reformed Churches • Collecting and Indexing Dialect Poetry • Folk Amusements in Western Pennsylvania • Of Plows and Ploughing • The New Year Wish of the Pennsylvania Dutch Broadsidehttps://digitalcommons.ursinus.edu/pafolklifemag/1005/thumbnail.jp

    Alternative splicing of the maize Ac transposase transcript in transgenic sugar beet (Beta vulgaris L.)

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    The maize Activator/Dissociation (Ac/Ds) transposable element system was introduced into sugar beet. The autonomous Ac and non-autonomous Ds element excise from the T-DNA vector and integrate at novel positions in the sugar beet genome. Ac and Ds excisions generate footprints in the donor T-DNA that support the hairpin model for transposon excision. Two complete integration events into genomic sugar beet DNA were obtained by IPCR. Integration of Ac leads to an eight bp duplication, while integration of Ds in a homologue of a sugar beet flowering locus gene did not induce a duplication. The molecular structure of the target site indicates Ds integration into a double strand break. Analyses of transposase transcription using RT–PCR revealed low amounts of alternatively spliced mRNAs. The fourth intron of the transposase was found to be partially misspliced. Four different splice products were identified. In addition, the second and third exon were found to harbour two and three novel introns, respectively. These utilize each the same splice donor but several alternative splice acceptor sites. Using the SplicePredictor online tool, one of the two introns within exon two is predicted to be efficiently spliced in maize. Most interestingly, splicing of this intron together with the four major introns of Ac would generate a transposase that lacks the DNA binding domain and two of its three nuclear localization signals, but still harbours the dimerization domain

    The Chalcidoidea bush of life: evolutionary history of a massive radiation of minute wasps.

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    Chalcidoidea are mostly parasitoid wasps that include as many as 500 000 estimated species. Capturing phylogenetic signal from such a massive radiation can be daunting. Chalcidoidea is an excellent example of a hyperdiverse group that has remained recalcitrant to phylogenetic resolution. We combined 1007 exons obtained with Anchored Hybrid Enrichment with 1048 ultra-conserved elements (UCEs) for 433 taxa including all extant families, >95% of all subfamilies, and 356 genera chosen to represent the vast diversity of the superfamily. Going back and forth between the molecular results and our collective knowledge of morphology and biology, we detected bias in the analyses that was driven by the saturation of nucleotide data. Our final results are based on a concatenated analysis of the least saturated exons and UCE datasets (2054 loci, 284 106 sites). Our analyses support an expected sister relationship with Mymarommatoidea. Seven previously recognized families were not monophyletic, so support for a new classification is discussed. Natural history in some cases would appear to be more informative than morphology, as illustrated by the elucidation of a clade of plant gall associates and a clade of taxa with planidial first-instar larvae. The phylogeny suggests a transition from smaller soft-bodied wasps to larger and more heavily sclerotized wasps, with egg parasitism as potentially ancestral for the entire superfamily. Deep divergences in Chalcidoidea coincide with an increase in insect families in the fossil record, and an early shift to phytophagy corresponds with the beginning of the "Angiosperm Terrestrial Revolution". Our dating analyses suggest a middle Jurassic origin of 174 Ma (167.3-180.5 Ma) and a crown age of 162.2 Ma (153.9-169.8 Ma) for Chalcidoidea. During the Cretaceous, Chalcidoidea may have undergone a rapid radiation in southern Gondwana with subsequent dispersals to the Northern Hemisphere. This scenario is discussed with regard to knowledge about the host taxa of chalcid wasps, their fossil record and Earth's palaeogeographic history

    Article Comparative Transcriptome Analyses Reveal Core Parasitism Genes and Suggest Gene Duplication and Repurposing as Sources of Structural Novelty

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    Abstract The origin of novel traits is recognized as an important process underlying many major evolutionary radiations. We studied the genetic basis for the evolution of haustoria, the novel feeding organs of parasitic flowering plants, using comparative transcriptome sequencing in three species of Orobanchaceae. Around 180 genes are upregulated during haustorial development following host attachment in at least two species, and these are enriched in proteases, cell wall modifying enzymes, and extracellular secretion proteins. Additionally, about 100 shared genes are upregulated in response to haustorium inducing factors prior to host attachment. Collectively, we refer to these newly identified genes as putative "parasitism genes." Most of these parasitism genes are derived from gene duplications in a common ancestor of Orobanchaceae and Mimulus guttatus, a related nonparasitic plant. Additionally, the signature of relaxed purifying selection and/or adaptive evolution at specific sites was detected in many haustorial genes, and may play an important role in parasite evolution. Comparative analysis of gene expression patterns in parasitic and nonparasitic angiosperms suggests that parasitism genes are derived primarily from root and floral tissues, but with some genes co-opted from other tissues. Gene duplication, often taking place in a nonparasitic ancestor of Orobanchaceae, followed by regulatory neofunctionalization, was an important process in the origin of parasitic haustoria

    Horizontal gene transfer is more frequent with increased heterotrophy and contributes to parasite adaptation

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    Horizontal gene transfer (HGT) is the transfer of genetic material across species boundaries and has been a driving force in prokaryotic evolution. HGT involving eukaryotes appears to be much less frequent, and the functional implications of HGT in eukaryotes are poorly understood. We test the hypothesis that parasitic plants, because of their intimate feeding contacts with host plant tissues, are especially prone to horizontal gene acquisition. We sought evidence of HGTs in transcriptomes of three parasitic members of Orobanchaceae, a plant family containing species spanning the full spectrum of parasitic capabilities, plus the free-living Lindenbergia. Following initial phylogenetic detection and an extensive validation procedure, 52 high-confidence horizontal transfer events were detected, often from lineages of known host plants and with an increasing number of HGT events in species with the greatest parasitic dependence. Analyses of intron sequences in putative donor and recipient lineages provide evidence for integration of genomic fragments far more often than retro-processed RNA sequences. Purifying selection predominates in functionally transferred sequences, with a small fraction of adaptively evolving sites. HGT-acquired genes are preferentially expressed in the haustorium—the organ of parasitic plants—and are strongly biased in predicted gene functions, suggesting that expression products of horizontally acquired genes are contributing to the unique adaptive feeding structure of parasitic plants

    Comparative transcriptome analyses reveal core parasitism genes and suggest gene duplication and repurposing as sources of structural novelty.

    No full text
    The origin of novel traits is recognized as an important process underlying many major evolutionary radiations. We studied the genetic basis for the evolution of haustoria, the novel feeding organs of parasitic flowering plants, using comparative transcriptome sequencing in three species of Orobanchaceae. Around 180 genes are upregulated during haustorial development following host attachment in at least two species, and these are enriched in proteases, cell wall modifying enzymes, and extracellular secretion proteins. Additionally, about 100 shared genes are upregulated in response to haustorium inducing factors prior to host attachment. Collectively, we refer to these newly identified genes as putative "parasitism genes." Most of these parasitism genes are derived from gene duplications in a common ancestor of Orobanchaceae and Mimulus guttatus, a related nonparasitic plant. Additionally, the signature of relaxed purifying selection and/or adaptive evolution at specific sites was detected in many haustorial genes, and may play an important role in parasite evolution. Comparative analysis of gene expression patterns in parasitic and nonparasitic angiosperms suggests that parasitism genes are derived primarily from root and floral tissues, but with some genes co-opted from other tissues. Gene duplication, often taking place in a nonparasitic ancestor of Orobanchaceae, followed by regulatory neofunctionalization, was an important process in the origin of parasitic haustoria
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