18 research outputs found
Alternative splicing of the maize Ac transposase transcript in transgenic sugar beet (Beta vulgaris L.)
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
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A Comparison of the Educational Opportunities of the Whites and the Negroes of Walker County
This thesis is written on the subject, state fully, "A Comparison of the Education Opportunities of the Whites and Negores of Walker County." The study is based, as far as possible, on a per-pupil comparison. The writer found Walker County an excellent county in which to make such a study for the simple reason that there was not another county in the state of Texas where there was such an equal balance of negro and white approved scholastics. The counties of Harrison, Marion, San Jacinto, Walker, and Waller were the only ones in the state of Texas that had more approved negro scholastics than white approved scholastics. In Walker county during the year 1937-1938 there were 2,498 white scholastics and 2,505 negro scholastics. This shows that there were only seven more negro approved scholastics than white approved scholastics
Constitutions of the Hawaiian Kingdom: a brief history and analysis
"To Commemorate the Signing of Hawaii's First Written Constitution, October 8, 1840
The Hawaiian Kingdom.
Vol. 2-3 published by University of Hawaii Press.Includes bibliographical references.[1] 1778-1854: foundation and transformation.--[2] 1854-1874: twenty critical years.--v. 3. 1874-1893: The KalaKaua dynasty.Mode of access: Internet
Kawazoe Scrapbook Box 8 Number 1
1935"The Earliest Japanese Labor Immigration to Hawaii" by Ralph S. Kuykendall -University of Hawaii occasional papers, Words translated into Japanese writing.Wester