ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Publication Date: 2002-08-24
    Description: Eukaryotic heterochromatin is characterized by a high density of repeats and transposons, as well as by modified histones, and influences both gene expression and chromosome segregation. In the fission yeast Schizosaccharomyces pombe, we deleted the argonaute, dicer, and RNA-dependent RNA polymerase gene homologs, which encode part of the machinery responsible for RNA interference (RNAi). Deletion results in the aberrant accumulation of complementary transcripts from centromeric heterochromatic repeats. This is accompanied by transcriptional de-repression of transgenes integrated at the centromere, loss of histone H3 lysine-9 methylation, and impairment of centromere function. We propose that double-stranded RNA arising from centromeric repeats targets formation and maintenance of heterochromatin through RNAi.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Volpe, Thomas A -- Kidner, Catherine -- Hall, Ira M -- Teng, Grace -- Grewal, Shiv I S -- Martienssen, Robert A -- GM59772/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2002 Sep 13;297(5588):1833-7. Epub 2002 Aug 22.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cold Spring Harbor Laboratory, Watson School of Biological Sciences, Cold Spring Harbor, NY 11724, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12193640" target="_blank"〉PubMed〈/a〉
    Keywords: Centromere/physiology ; Chromosomal Proteins, Non-Histone/metabolism ; DNA Methylation ; DNA Transposable Elements ; Endoribonucleases/genetics/metabolism ; Gene Deletion ; *Gene Silencing ; Genes, Fungal ; Heterochromatin/genetics/*metabolism ; Histones/*metabolism ; Lysine/*metabolism ; Methylation ; Models, Genetic ; RNA Replicase/genetics/metabolism ; RNA, Double-Stranded/metabolism ; RNA, Fungal/metabolism ; RNA, Small Interfering ; RNA, Untranslated/genetics/*metabolism ; Repetitive Sequences, Nucleic Acid ; Ribonuclease III ; Schizosaccharomyces/*genetics/metabolism ; Schizosaccharomyces pombe Proteins/genetics/metabolism ; Transcription, Genetic ; Transgenes
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Publication Date: 2002-06-22
    Description: The Arabidopsis gene DDM1 is required to maintain DNA methylation levels and is responsible for transposon and transgene silencing. However, rather than encoding a DNA methyltransferase, DDM1 has similarity to the SWI/SNF family of adenosine triphosphate-dependent chromatin remodeling genes, suggesting an indirect role in DNA methylation. Here we show that DDM1 is also required to maintain histone H3 methylation patterns. In wild-type heterochromatin, transposons and silent genes are associated with histone H3 methylated at lysine 9, whereas known genes are preferentially associated with methylated lysine 4. In ddm1 heterochromatin, DNA methylation is lost, and methylation of lysine 9 is largely replaced by methylation of lysine 4. Because DNA methylation has recently been shown to depend on histone H3 lysine 9 methylation, our results suggest that transposon methylation may be guided by histone H3 methylation in plant genomes. This would account for the epigenetic inheritance of hypomethylated DNA once histone H3 methylation patterns are altered.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Gendrel, Anne-Valerie -- Lippman, Zachary -- Yordan, Cristy -- Colot, Vincent -- Martienssen, Robert A -- New York, N.Y. -- Science. 2002 Sep 13;297(5588):1871-3. Epub 2002 Jun 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/12077425" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; Animals ; Arabidopsis/*genetics/metabolism ; Arabidopsis Proteins/chemistry/genetics/metabolism ; DNA Methylation ; DNA Transposable Elements ; DNA, Plant/metabolism ; DNA-Binding Proteins/*genetics/physiology ; Gene Expression ; Gene Expression Profiling ; Gene Silencing ; *Genes, Plant ; Heterochromatin/*metabolism ; Histones/chemistry/*metabolism ; Humans ; Lysine/metabolism ; Methylation ; Molecular Sequence Data ; Reverse Transcriptase Polymerase Chain Reaction ; Sequence Alignment ; Transcription Factors/*genetics/physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Publication Date: 2009-12-08
    Description: We report an improved draft nucleotide sequence of the 2.3-gigabase genome of maize, an important crop plant and model for biological research. Over 32,000 genes were predicted, of which 99.8% were placed on reference chromosomes. Nearly 85% of the genome is composed of hundreds of families of transposable elements, dispersed nonuniformly across the genome. These were responsible for the capture and amplification of numerous gene fragments and affect the composition, sizes, and positions of centromeres. We also report on the correlation of methylation-poor regions with Mu transposon insertions and recombination, and copy number variants with insertions and/or deletions, as well as how uneven gene losses between duplicated regions were involved in returning an ancient allotetraploid to a genetically diploid state. These analyses inform and set the stage for further investigations to improve our understanding of the domestication and agricultural improvements of maize.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Schnable, Patrick S -- Ware, Doreen -- Fulton, Robert S -- Stein, Joshua C -- Wei, Fusheng -- Pasternak, Shiran -- Liang, Chengzhi -- Zhang, Jianwei -- Fulton, Lucinda -- Graves, Tina A -- Minx, Patrick -- Reily, Amy Denise -- Courtney, Laura -- Kruchowski, Scott S -- Tomlinson, Chad -- Strong, Cindy -- Delehaunty, Kim -- Fronick, Catrina -- Courtney, Bill -- Rock, Susan M -- Belter, Eddie -- Du, Feiyu -- Kim, Kyung -- Abbott, Rachel M -- Cotton, Marc -- Levy, Andy -- Marchetto, Pamela -- Ochoa, Kerri -- Jackson, Stephanie M -- Gillam, Barbara -- Chen, Weizu -- Yan, Le -- Higginbotham, Jamey -- Cardenas, Marco -- Waligorski, Jason -- Applebaum, Elizabeth -- Phelps, Lindsey -- Falcone, Jason -- Kanchi, Krishna -- Thane, Thynn -- Scimone, Adam -- Thane, Nay -- Henke, Jessica -- Wang, Tom -- Ruppert, Jessica -- Shah, Neha -- Rotter, Kelsi -- Hodges, Jennifer -- Ingenthron, Elizabeth -- Cordes, Matt -- Kohlberg, Sara -- Sgro, Jennifer -- Delgado, Brandon -- Mead, Kelly -- Chinwalla, Asif -- Leonard, Shawn -- Crouse, Kevin -- Collura, Kristi -- Kudrna, Dave -- Currie, Jennifer -- He, Ruifeng -- Angelova, Angelina -- Rajasekar, Shanmugam -- Mueller, Teri -- Lomeli, Rene -- Scara, Gabriel -- Ko, Ara -- Delaney, Krista -- Wissotski, Marina -- Lopez, Georgina -- Campos, David -- Braidotti, Michele -- Ashley, Elizabeth -- Golser, Wolfgang -- Kim, HyeRan -- Lee, Seunghee -- Lin, Jinke -- Dujmic, Zeljko -- Kim, Woojin -- Talag, Jayson -- Zuccolo, Andrea -- Fan, Chuanzhu -- Sebastian, Aswathy -- Kramer, Melissa -- Spiegel, Lori -- Nascimento, Lidia -- Zutavern, Theresa -- Miller, Beth -- Ambroise, Claude -- Muller, Stephanie -- Spooner, Will -- Narechania, Apurva -- Ren, Liya -- Wei, Sharon -- Kumari, Sunita -- Faga, Ben -- Levy, Michael J -- McMahan, Linda -- Van Buren, Peter -- Vaughn, Matthew W -- Ying, Kai -- Yeh, Cheng-Ting -- Emrich, Scott J -- Jia, Yi -- Kalyanaraman, Ananth -- Hsia, An-Ping -- Barbazuk, W Brad -- Baucom, Regina S -- Brutnell, Thomas P -- Carpita, Nicholas C -- Chaparro, Cristian -- Chia, Jer-Ming -- Deragon, Jean-Marc -- Estill, James C -- Fu, Yan -- Jeddeloh, Jeffrey A -- Han, Yujun -- Lee, Hyeran -- Li, Pinghua -- Lisch, Damon R -- Liu, Sanzhen -- Liu, Zhijie -- Nagel, Dawn Holligan -- McCann, Maureen C -- SanMiguel, Phillip -- Myers, Alan M -- Nettleton, Dan -- Nguyen, John -- Penning, Bryan W -- Ponnala, Lalit -- Schneider, Kevin L -- Schwartz, David C -- Sharma, Anupma -- Soderlund, Carol -- Springer, Nathan M -- Sun, Qi -- Wang, Hao -- Waterman, Michael -- Westerman, Richard -- Wolfgruber, Thomas K -- Yang, Lixing -- Yu, Yeisoo -- Zhang, Lifang -- Zhou, Shiguo -- Zhu, Qihui -- Bennetzen, Jeffrey L -- Dawe, R Kelly -- Jiang, Jiming -- Jiang, Ning -- Presting, Gernot G -- Wessler, Susan R -- Aluru, Srinivas -- Martienssen, Robert A -- Clifton, Sandra W -- McCombie, W Richard -- Wing, Rod A -- Wilson, Richard K -- New York, N.Y. -- Science. 2009 Nov 20;326(5956):1112-5. doi: 10.1126/science.1178534.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Plant Genomics, Iowa State University, Ames, IA 50011, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965430" target="_blank"〉PubMed〈/a〉
    Keywords: Base Sequence ; Centromere/genetics ; Chromosome Mapping ; Chromosomes, Plant/genetics ; Crops, Agricultural/genetics ; DNA Copy Number Variations ; DNA Methylation ; DNA Transposable Elements ; DNA, Plant/genetics ; Genes, Plant ; *Genetic Variation ; *Genome, Plant ; Inbreeding ; MicroRNAs/genetics ; Molecular Sequence Data ; Ploidies ; RNA, Plant/genetics ; Recombination, Genetic ; Retroelements ; *Sequence Analysis, DNA ; Zea mays/*genetics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...