Chromosomal location of genes for resistance to powdery mildew in common wheat (Triticum aestivum L. em. Thell.) 4. Gene Pm 24 in Chinese landrace Chiyacao
Chromosomal location of genes for resistance to powdery mildew in common wheat (Triticum aestivum L. em. Thell.) 4. Gene Pm 24 in Chinese landrace Chiyacao
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DOI：
10.1007/s001220050646
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发表时间：
1997-10
影响因子：
5.4
通讯作者：
X. Huang;S. Hsam;Friedrich J. Zeller
中科院分区：
文献类型：
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作者：
X. Huang;S. Hsam;Friedrich J. Zeller
中国小麦地方品种赤芽草对106个白粉菌菌株的反应模式与已报道的具有Pm基因的品种/系不同。sp.tritici.为了表征这种抗性并确定存在的基因或基因的染色体位置，我们将地方品种与易感品种“中国春”以及一组21个“中国春”单体系杂交。使单体F1植物自花授粉并产生F2种子。用nos. 5和12号。sp.tritici.结果表明，中国普通小麦地方品种赤芽草的一对主效显性基因位于6D染色体上。新基因命名为Pm 24。
Chinese wheat landrace Chiyacao exhibited a response pattern different from that of the cultivars/lines possessing documentedPmgenes after inoculation with 106 isolates ofErysiphe graminisf. sp.tritici. To characterize this resistance and to determine the chromosomal location of the gene or genes present, we crossed the landrace to susceptible cultivar ‘Chinese Spring’ and also to a set of 21 ‘Chinese Spring’ monosomic lines. Monosomic F1plants were allowed to self-pollinate and to produce F2seeds. Seedlings of F2plants and their parents were inoculated with isolates nos. 5 and 12 ofErysiphe graminisf. sp.tritici. The results revealed that one major dominant gene is located on chromosome 6D of Chinese common wheat landrace Chiyacao. The new gene is designatedPm24.