Characterization of a PDR type ABC transporter gene from wheat (Triticum aestivum L.)
文献类型: 外文期刊
第一作者: Shang Yi
作者: Shang Yi;Xiao Jin;Ma LuLin;Wang HaiYan;Qi ZengJun;Chen PeiDu;Liu DaJun;Wang XiuE;Shang Yi
作者机构:
关键词: wheat;deoxynivalenol (DON);ABC transporter;PDR (pleiotropic drug resistance)
期刊名称:CHINESE SCIENCE BULLETIN ( 影响因子:1.649; 五年影响因子:1.738 )
ISSN: 1001-6538
年卷期: 2009 年 54 卷 18 期
页码:
收录情况: SCI
摘要: DON, as a virulence factor, plays an important role in the infection of Fusarium graminearum in wheat. The infection ability of F. graminearum depends on its capacity of producing DON. The production of DON by F. graminearum is significantly decreased in the wheat varieties with scab resistance. In this study, GeneChip analysis indicated that an EST encoding an ATP-binding cassette (ABC) transporter was up-regulated by 45 times in a wheat landrace Wangshuibai, which is resistant to DON accumulation. A pair of EST-derived primers were designed based on the EST sequence, and a clone was then isolated from a wheat genomic DNA TAC library. The TAC clone was sequenced using chromosome walking and gene prediction was conducted using Softberry. A cDNA clone of this gene was subsequently isolated from Wangshuibai induced by DON using gene-specific primers designed according to the untranslated sequence of the gene. The genome size of the gene is 7377 bp, consisting of 19 exons with coding sequences of 4308 bp. It encodes a protein with 1435 amino acid residues and the calculated molecular weight is about 161 kD. BLAST analysis indicated that the gene may belong to pleiotropic drug resistance (PDR) sub-family, and hence designated as TaPDR1 (Triticum aestivum pleiotropic drug resistance). TaPDR1 was located on chromosome 5A of wheat using nullisomic-tetrasomic lines of Chinese Spring. TaPDR1 was up-regulated by induction of both DON and F. graminearum. Expression patterns of TaPDR1 were different in wild-type Wangshuibai and the fast-neutron induced Wangshuibai mutant lacking FHB1, a major QTL of FHB resistance and DON resistance in chromosome arm 3BS. These results suggested that TaPDR1 might be a candidate gene responsible for DON accumulation resistance. The expression profile showed that TaPDR1 expression was neither induced by hormones typically involved in biotic stress, such as JA and SA, nor by abiotic stresses, such as heat, cold, wounding and NaCl. However, TaPDR1 expression was regulated by Al(3+) and [Ca(2+)], indicating that [Ca(2+)](i) might mediate the signal of TaPDR1 expression.
分类号:
- 相关文献
作者其他论文 更多>>
-
Inheritance of steroidal glycoalkaloids in potato tuber flesh
作者:Peng Zhen;Wang Pei;Shang Yi;Li Can-hui;Peng Zhen;Wang Pei;Tang Die;Huang San-wen;Zhang Chun-zhi;Huang San-wen
关键词:steroidal glycoalkaloids; domestication; tuber flesh; QTL mapping
-
Transcription Analysis of the Porcine Alveolar Macrophage Response to Mycoplasma hyopneumoniae
作者:Li Bin;Du Luping;Sun Bing;Yu Zhengyu;Liu Maojun;Feng Zhixin;Wei Yanna;Wang Haiyan;Shao Guoqing;He Kongwang;Li Bin;Yu Zhengyu;Liu Maojun;Feng Zhixin;Wei Yanna;Wang Haiyan;Shao Guoqing;He Kongwang
关键词:
-
Tracing the location of powdery mildew resistance-related gene Stpk-V by FISH with a TAC clone in Triticum aestivum-Haynaldia villosa alien chromosome lines
作者:Yang XueMing;Cao AiZhong;Sun YuLei;Chen PeiDu;Yang XueMing
关键词:fluorescence in situ hybridization (FISH);transformation-competent artificial chromosome (TAC);serine/threonine protein kinase gene from the V-genome (Stpk-V);Triticum aestivum-Haynaldia villosa alien chromosome lines
-
Pathotypes and Genetic Diversity of Blumeria graminis f sp hordei in the Winter Barley Regions in China
作者:Zhu Jing-huan;Wang Jun-mei;Jia Qiao-jun;Yang Jian-ming;Lin Feng;Hua Wei;Shang Yi;Zhu Jing-huan;Zhou Yi-jun;Zhou Yi-jun
关键词:Blumeria graminis f sp hordei;powdery mildew;pathotype;virulence frequency;diversity;barley;China