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2008 International Conference on BioMedical Engineering and Informatics
Characterization of a Supercluster of SnoRNA Genes from Rice Genome
May 27-May 30
ISBN: 978-0-7695-3118-2
Small nucleolar RNAs (snoRNAs) are mainly involved in rRNA processing and modification, including the maturation of precursor ribosomal RNAs (pre-rRNA), and methylation and pseudouridynation of rRNA bases. These moleclules are transcripted independly, along with host gene as an intron or as polycistron, reflecting the different pathways for processing of precursor snoRNAs (pre-snoRNAs) into mature snoRNAs. Analysis of snoRNA gene organizations and sequences will enable us to explore their evolutions. Previously, we have briefly mentioned a surprisingly larg cluster from rice, consisting of 5 duplictions of a cluster. It provides a good opportunity to reveal the evolution machanism of the snoRNA genes. Here detailed examination were performed and the processs of snoRNA gene loss, insertion and tranfer and cluster duplication are highlighted.
Index Terms:
snoRNA, organization, evolution, cluster
Citation:
Jun Xie, Fang Fang, HaiRong Hu, Feng Xu, Qi Wu, "Characterization of a Supercluster of SnoRNA Genes from Rice Genome," bmei, vol. 1, pp.87-92, 2008 International Conference on BioMedical Engineering and Informatics, 2008
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