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Functional Genomics of Rice Pollen and Seed Development by Genome-wide Transcript Profiling and Ds Insertion Mutagenesis

By Shu-ye Jiang and Srinivasan Ramach

Abstract

Rice pollen and seed development are directly related to grain yield. To further improve rice yield, it is important for us to functionally annotate the genes controlling pollen/seed development and to use them for rice breeding. Here we first carried out a genome-wide expression analysis with an emphasis on genes being involved in rice pollen and seed development. Based on the transcript profiling, we have identified and functionally classified 82 highly expressed pollen-specific, 12 developing seed-specific and 19 germinating seed-specific genes. We then presented the utilization of the maize transposon Dissociation (Ds) insertion lines for functional genomics of rice pollen and seed development and as alternative germplasm resources for rice breeding. We have established a two-element Activator/Dissociation (Ac/Ds) gene trap tagging system and generated around 20,000 Ds insertio

Year: 2011
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