以宁7840和韩国品种Chokwang衍生的F10代重组近交系(RIL)群体为材料,研究拟坏死营养性症状与小麦赤霉病扩展抗性的关系。结果表明:拟坏死症状与赤霉病扩展抗性显著相关,具有坏死营养症状的RIL其病小穗率(PSS)显著低于没有该性状的株系...以宁7840和韩国品种Chokwang衍生的F10代重组近交系(RIL)群体为材料,研究拟坏死营养性症状与小麦赤霉病扩展抗性的关系。结果表明:拟坏死症状与赤霉病扩展抗性显著相关,具有坏死营养症状的RIL其病小穗率(PSS)显著低于没有该性状的株系。位于3BS上的Fhb1能够解释21%的表型变异,而拟坏死营养症状(Lesion mi mic,LM)基因对PSS的影响基本独立于Fhb1,二者没有显著的互作关系。这表明LM性状的表达具有一因多效作用,能够介导小麦的广谱抗性,对活体营养性病原菌引起的病害(如小麦锈病)和腐生营养性病原菌引起的赤霉病均有抑制作用,这类广谱基因在育种中可能具有重要的应用价值。展开更多
A new homochiral ligand,(R)-2-(4-pyridyl)-4,5-dihydrothiazole-4-carboxylic acid(HL^R), has been synthesized. Two complexes, [ZnL2^R(H2O)2]·H2O(1) and [MnL2^R(H2O)2]?H2O(2) have been prepared by the...A new homochiral ligand,(R)-2-(4-pyridyl)-4,5-dihydrothiazole-4-carboxylic acid(HL^R), has been synthesized. Two complexes, [ZnL2^R(H2O)2]·H2O(1) and [MnL2^R(H2O)2]?H2O(2) have been prepared by the reactions of Zn(Ⅱ) and Mn(Ⅱ) ions with the ligand HLR, and characterized by single-crystal X-ray diffraction analysis and fluorescence. Complexes 1 and 2 are isomorphs, and both of the Zn(Ⅱ) and Mn(Ⅱ) centers in 1 and 2 are six-coordinated by the two NO units of two ligands and two water oxygen atoms, showing distorted octahedral coordination geometry. Complexes 1 and 2 show fluorescent properties in the solid state at room temperature.展开更多
文摘以宁7840和韩国品种Chokwang衍生的F10代重组近交系(RIL)群体为材料,研究拟坏死营养性症状与小麦赤霉病扩展抗性的关系。结果表明:拟坏死症状与赤霉病扩展抗性显著相关,具有坏死营养症状的RIL其病小穗率(PSS)显著低于没有该性状的株系。位于3BS上的Fhb1能够解释21%的表型变异,而拟坏死营养症状(Lesion mi mic,LM)基因对PSS的影响基本独立于Fhb1,二者没有显著的互作关系。这表明LM性状的表达具有一因多效作用,能够介导小麦的广谱抗性,对活体营养性病原菌引起的病害(如小麦锈病)和腐生营养性病原菌引起的赤霉病均有抑制作用,这类广谱基因在育种中可能具有重要的应用价值。
基金supported by the National Natural Science Foundation of China(No.21271129)
文摘A new homochiral ligand,(R)-2-(4-pyridyl)-4,5-dihydrothiazole-4-carboxylic acid(HL^R), has been synthesized. Two complexes, [ZnL2^R(H2O)2]·H2O(1) and [MnL2^R(H2O)2]?H2O(2) have been prepared by the reactions of Zn(Ⅱ) and Mn(Ⅱ) ions with the ligand HLR, and characterized by single-crystal X-ray diffraction analysis and fluorescence. Complexes 1 and 2 are isomorphs, and both of the Zn(Ⅱ) and Mn(Ⅱ) centers in 1 and 2 are six-coordinated by the two NO units of two ligands and two water oxygen atoms, showing distorted octahedral coordination geometry. Complexes 1 and 2 show fluorescent properties in the solid state at room temperature.