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Boavida, Leonor C.,Shuai, Bin,Yu, Hee-Ju,Pagnussat, Gabriela C.,Sundaresan, Venkatesan,McCormick, Sheila The Genetics Society of America 2009 Genetics Vol.181 No.4
<P>Functional analyses of the Arabidopsis genome require analysis of the gametophytic generation, since approximately 10% of the genes are expressed in the male gametophyte and approximately 9% in the female gametophyte. Here we describe the genetic and molecular characterization of 67 Ds insertion lines that show reduced transmission through the male gametophyte. About half of these mutations are male gametophytic-specific mutations, while the others also affect female transmission. Genomic sequences flanking both sides of the Ds element were recovered for 39 lines; for 16 the Ds elements were inserted in or close to coding regions, while 7 were located in intergenic/unannotated regions of the genome. For the remaining 16 lines, chromosomal rearrangements such as translocations or deletions, ranging between 30 and 500 kb, were associated with the transposition event. The mutants were classified into five groups according to the developmental processes affected; these ranged from defects in early stages of gametogenesis to later defects affecting pollen germination, pollen tube growth, polarity or guidance, or pollen tube-embryo sac interactions or fertilization. The isolated mutants carry Ds insertions in genes with diverse biological functions and potentially specify new functions for several unannotated or unknown proteins.</P>
Mutant resources in rice for functional genomics of the grasses.
Krishnan, Arjun,Guiderdoni, Emmanuel,An, Gynheung,Hsing, Yue-ie C,Han, Chang-deok,Lee, Myung Chul,Yu, Su-May,Upadhyaya, Narayana,Ramachandran, Srinivasan,Zhang, Qifa,Sundaresan, Venkatesan,Hirochika, American Society of Plant Physiologists 2009 PLANT PHYSIOLOGY - Vol.149 No.1
Rice mutant resources for gene discovery
Hirohiko Hirochika,,Emmanuel Guiderdoni,An, Gyn-heung,Yue-ie Hsing,Eun, Moo-Young,Han, Chang-deok,Narayana Upadhyaya,Hei Leung,Srinivasan Ramachandran,Qifa Zhang,Andy Pereira,Venkatesan Sundaresan Plant molecular biology and biotechnology research 2004 Plant molecular biology and biotechnology research Vol.2004 No.-
With the completion of genomic sequencing of rice, rice has been firmly established as a model organism for both basic and applied research. The next challenge is to uncover the functions of genes predicted by sequence analysis. Considering the amount of effort and the diversity of disciplines required for functional analyses, extensive international collaboration is needed for this next goal. The aims of this review are to summarize the current status of rice mutant resources, key tools for functional analysis of genes, and our perspectives on how to accelerate rice gene discovery through collaboration.