Transcriptome analysis in newly synthesized allohexaploid wheat

• 作 者: BaoQi;JinsongPang;MosheFeldman;BaoLiu;
• 机 构: Northeast Normal University,Changchun China
• 出 处: 2007年国际多倍体杂种优势及表观遗传学大会
• 发表日期: 2007年期

　　Common wheat,Triticum aestivum L.(genome AABBDD),being a recently formed allohexaploid species (ca.8500 year-old),is a staple food crop as well as a textbook example of speciation via allopolyploidy.Accumulated recent evidence indicates that allopolyploidy in wheat is accompanied by an array of genomic instability,epigenetic modification and alterations in gene expression,which often occur at the onset of allopolyploid formation.To further study gene expression changes associated with allpolyploidy in wheat from a global perspective,we employed the wheat Affymetrix Microarray system to analyze possible transcriptome changes in leaf tissue of three synthetic allohexaploid wheat lines (genome AABBDD,analogous to common wheat) that were previously shown to have undergone rapid elimination of non-coding and chromosome-or genome-specific sequences (Ozkan et al.2001).