Comparative transcriptome analysis of diploid and tetraploid Arabidopsis

Autopolyploidy has been utilized for improvements of crops, fruits, ornamental flowers, because high polyploidy often give organisms larger statue, higher accumulation of chemicals and stronger tolerance against various stresses. In spite of the above fact, autopolyploids have been reported to have no or very limited changes in transcriptome profiles in comparison with their diploid parents. Typically, in a model plant species, Arabidopsis thaliana (L.) Heynh. (Arabidopsis), no reproducible changes among accessions was detected between transcriptomes of diploids and tetraploids. In this project, in order to examine if tetraploidization really unlinked to alterations in transcriptional regulations, we deep-sequenced cDNAs of diploid and tetraploid shoots of Arabidopsis.