Search Results - "Winchell, Christopher"

The pre-vertebrate origins of neurogenic placodes by Abitua, Philip Barron, Gainous, T. Blair, Kaczmarczyk, Angela N., Winchell, Christopher J., Hudson, Clare, Kamata, Kaori, Nakagawa, Masashi, Tsuda, Motoyuki, Kusakabe, Takehiro G., Levine, Michael

“…A study showing that tunicates possess a proto-placodal ectoderm that produces neurons with dual neurosecretory and chemosensory function, which may represent…”
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Reproductive differences among species, and between individuals and cohorts, in the leech genus Helobdella (Lophotrochozoa; Annelida; Clitellata; Hirudinida; Glossiphoniidae), with implications for reproductive resource allocation in hermaphrodites by Iyer, Roshni G, Rogers, D Valle, Levine, Michelle, Winchell, Christopher J, Weisblat, David A

“…Leeches and oligochaetes comprise a monophyletic group of annelids, the Clitellata, whose reproduction is characterized by simultaneous hermaphroditism. While…”
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Transgenesis enables mapping of segmental ganglia in the leech Helobdella austinensis by Kuo, Dian-Han, Szczupak, Lidia, Weisblat, David A, Portiansky, Enrique L, Winchell, Christopher J, Lee, Jun-Ru, Tsai, Fu-Yu

“…The analysis of how neural circuits function in individuals and change during evolution is simplified by the existence of neurons identified as homologous…”
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Ribosomal RNA genes and deuterostome phylogeny revisited: More cyclostomes, elasmobranchs, reptiles, and a brittle star by Mallatt, Jon, Winchell, Christopher J.

“…This is an expanded study of the relationships among the deuterostome animals based on combined, nearly complete 28S and 18S rRNA genes (>3925 nt.). It adds…”
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De novo characterization of the gene-rich transcriptomes of two color-polymorphic spiders, Theridion grallator and T. californicum (Araneae: Theridiidae), with special reference to pigment genes by Croucher, Peter J P, Brewer, Michael S, Winchell, Christopher J, Oxford, Geoff S, Gillespie, Rosemary G

“…A number of spider species within the family Theridiidae exhibit a dramatic abdominal (opisthosomal) color polymorphism. The polymorphism is inherited in a…”
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Transcriptional profiling of identified neurons in leech by Heath-Heckman, Elizabeth, Yoo, Shinja, Winchell, Christopher, Pellegrino, Maurizio, Angstadt, James, Lammardo, Veronica B, Bautista, Diana, De-Miguel, Francisco F, Weisblat, David

“…While leeches in the genus Hirudo have long been models for neurobiology, the molecular underpinnings of nervous system structure and function in this group…”
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Testing the new animal phylogeny: first use of combined large-subunit and small-subunit rRNA gene sequences to classify the protostomes by Mallatt, Jon, Winchell, Christopher J

“…Although the small-subunit ribosomal RNA (SSU rRNA) gene is widely used in the molecular systematics, few large-subunit (LSU) rRNA gene sequences are known…”
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A tale of two leeches: Toward the understanding of the evolution and development of behavioral neural circuits by Kuo, Dian‐Han, De‐Miguel, Francisco F., Heath‐Heckman, Elizabeth A. C., Szczupak, Lidia, Todd, Krista, Weisblat, David A., Winchell, Christopher J.

“…In the animal kingdom, behavioral traits encompass a broad spectrum of biological phenotypes that have critical roles in adaptive evolution, but an EvoDevo…”
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Expression of the Lhx genes apterous and lim1 in an errant polychaete: implications for bilaterian appendage evolution, neural development, and muscle diversification by Winchell, Christopher J, Jacobs, David K

“…Arthropod and vertebrate appendages appear to have evolved via parallel co-option of a plesiomorphic gene regulatory network. Our previous work implies that…”
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Confocal analysis of nervous system architecture in direct-developing juveniles of Neanthes arenaceodentata (Annelida, Nereididae) by Winchell, Christopher J, Valencia, Jonathan E, Jacobs, David K

“…Members of Family Nereididae have complex neural morphology exemplary of errant polychaetes and are leading research models in the investigation of annelid…”
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Phylogeny of elasmobranchs based on LSU and SSU ribosomal RNA genes by Winchell, Christopher J, Martin, Andrew P, Mallatt, Jon

“…The dominant view of the phylogeny of living elasmobranchs, based on morphological characters, is that batoids (skates and rays) are derived sharks, joined…”
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Evaluating hypotheses of deuterostome phylogeny and chordate evolution with new LSU and SSU ribosomal DNA data by Winchell, Christopher J, Sullivan, Jack, Cameron, Christopher B, Swalla, Billie J, Mallatt, Jon

“…We investigated evolutionary relationships among deuterostome subgroups by obtaining nearly complete large-subunit ribosomal RNA (LSU rRNA)-gene sequences for…”
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Expression of Distal-less, dachshund, and optomotor blind in Neanthes arenaceodentata (Annelida, Nereididae) does not support homology of appendage-forming mechanisms across the Bilateria by Winchell, Christopher J, Valencia, Jonathan E, Jacobs, David K

“…The similarity in the genetic regulation of arthropod and vertebrate appendage formation has been interpreted as the product of a plesiomorphic gene network…”
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Terminal addition, the Cambrian radiation and the Phanerozoic evolution of bilaterian form by Jacobs, David K., Hughes, Nigel C., Fitz-Gibbon, Sorel T., Winchell, Christopher J.

“…Summary We examine terminal addition, the process of addition of serial elements in a posterior subterminal growth zone during animal development, across…”
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Biological components of Ross Sea short-term particle fluxes in the austral summer of 1995–1996 by Gowing, Marcia M., Garrison, David L., Kunze, Holly B., Winchell, Christopher J.

“…The Ross Sea, a region of high seasonal production in the Southern Ocean, is characterized by blooms of the haptophyte Phaeocystis antarctica and of diatoms…”
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Reproductive differences among species, and between individuals and cohorts, in the leech genus Helobdella by Iyer, Roshni G, Rogers, D. Valle, Levine, Michelle, Winchell, Christopher J, Weisblat, David A

“…Leeches and oligochaetes comprise a monophyletic group of annelids, the Clitellata, whose reproduction is characterized by simultaneous hermaphroditism. While…”
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Analysis of Nervous System Architecture and the Expression of Arthropod/Vertebrate Appendage-Gene Orthologs in Direct-Developing Juveniles of Neanthes arenaceodentata (Annelida, Nereididae) by Winchell, Christopher Jon

“…In distantly related animals, parallels in the expression of genes that regulate body plan development are most often observed in the nervous system. This…”
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