Genome-Wide Transcriptional Analysis of Al-responsive Genes in Rice
Rice ( Oryza saliva) is the most Al-resistant crop among small-grain cereal crops, but the mechanism underlying its high Al resistance is still poorly understood. Here, we compared transcriptional profile of Al-responsive genes in the root tips and mature zones between the Al-tolerant cultivar ( Koshihikari) and a hyper-sensitive mutant star/als1 ( sensitive to Al rhizotoxicity 1) by using Agilent 44K Rice Oligo DNA Microarray. Exposure to 20 μM Al for 6 h caused increased expression ( higher than 3 folds) of 786 and 5547 genes including 624 common genes, respectively, in the root tips of WT and the mutant. On the other hand, in the mature root zone, genes up-regulated by Al were 616 and 8676 including 453 common genes, respectively, in the WT and mutant. From these data, putative Al-tolerance and toxicity genes were extracted by comparing gene expression between the WT and the mutant.
Tomokazu Tsutsui Chaofeng Huang Naoki Yamaji Yoshiaki Nagamura Jianfeng Ma
Research Institute for Bioresources, Okayama University, Chuo 2-20-1, Kurashiki, 710-0046, Japan National Institute of Agrobiological Sciences, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan
国际会议
The 7th International Symposium on Plant-Soil Interactions at Low pH(第七届低pH条件下植物-土壤交互作用国际研讨会)
广州
英文
163-164
2009-05-17（万方平台首次上网日期，不代表论文的发表时间）