Basel Khraiwesh

RNA interference pathways in the moss Physcomitrella patens

The regulatory role of small RNAs in the moss Physcomitrella patens

• Broschiertes Buch

Produktbeschreibung

RNA interference (RNAi) is a mechanism regulating gene transcript levels by either transcriptional gene silencing (TGS) or by posttranscriptional gene silencing (PTGS), which acts in genome maintenance and the regulation of development. This book show the role of Dicer proteins in the moss Physcomitrella patens, which has four Dicers (DICER-LIKE 1a (DCL1a), DCL1b, DCL3 and DCL4). The Physcomitrella patens was chosen because the dual functions of Dicers in miRNA biogenesis and target cleavage are separable in this species. Using targeted knockout-mutants of Physcomitrella patens, it was shown that DCL1a is required for miRNA biogenesis and DCL1b is required for miRNA-induced target RNA cleavage. Based on these data from Physcomitrella patens a model is proposed for the gene-specific control of transcription factors upon dysfunctions of the RNAi machinery. Similar control mechanisms could be exist in other eukaryotes as well. Also this book provide evidence that artificial miRNAs (amiRNAs) can be used as an alternative tool for studying gene functions in Physcomitrella patens.

Produktdetails

• Verlag: LAP Lambert Academic Publishing
• Seitenzahl: 128
• Erscheinungstermin: 5. April 2011
• Englisch
• Abmessung: 220mm x 150mm x 8mm
• Gewicht: 209g
• ISBN-13: 9783844325188
• ISBN-10: 3844325182
• Artikelnr.: 33254901

Autorenporträt

El Dr. Basel Khraiwesh es Postdoctoral Fellow en el Centro de Investigación de Genómica y Tecnología del Estrés de las Plantas de la Universidad de KAUST. Anteriormente ha trabajado en otras instituciones académicas como el Departamento VIB de Biología de Sistemas Vegetales de la Universidad de Gante, Bélgica, y obtuvo un doctorado en Biotecnología Vegetal en la Universidad de Friburgo, Alemania, en 2009.