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  • 1
    Electronic Resource
    Electronic Resource
    Expression patterns of musashi homologs of the ascidians, Halocynthia roretzi and Ciona intestinalis (2000)
    Springer
    Development genes and evolution 210 (2000), S. 162-165 
    Details
    ISSN: 1432-041X
    Keywords: Key words Ascidian ; Musashi ; RNA-binding protein
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  The gene family encoding RNA-binding proteins includes important regulators involved in the neurogenesis in both protostomes and deuterostomes. We isolated cDNAs of the ascidian homolog of one of the RNA-binding proteins, MUSASHI, from Halocynthia roretzi and Ciona intestinalis. The predicted amino acid sequences contained two RNA-recognition and RNA-binding motifs in the N-terminus and an ascidian-specific YG-rich domain in the C-terminus. Maternal transcripts of musashi were ubiquitous in early cleavage-stage embryos. Ascidian musashi had three domains of zygotic expression: the brain, nerve cord, and mesenchyma. The temporal order of the onset in these domains was highly divergent between the two species of ascidian examined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004270050024
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Ascidian Wnt-7 gene is expressed exclusively in the tail neural tube of tailbud embryos (2000)
    Springer
    Development genes and evolution 210 (2000), S. 641-643 
    Details
    ISSN: 1432-041X
    Keywords: Keywords Ascidian ; Wnt-7 ; Neural tube ; Early embryogenesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  In vertebrate embryogenesis, many Wnt genes are expressed in the neural tube and play important roles in regional specifications. There are many subfamilies of Wnt, and each subfamily shows distinct expression patterns in the neural tube. Ascidian larvae have a dorsal hollow neural tube similar to that of vertebrates. To date, the degree of correspondence between regionality of the neural tubes of ascidians and vertebrates remains unclear. To compare cellular differences in neural tubes, Wnt genes can be used as molecular probes. We report here that a new member of the ascidian Wnt gene family, HrWnt-7, was expressed in the tail neural tube at the early tailbud stage. Moreover, in cross-section, HrWnt-7 was expressed in the dorsal and ventral ependymal cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004270000108
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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