面包小麦抗真菌病原体的遗传变异

IF 1.2 4区 农林科学 Q3 AGRONOMY Czech Journal of Genetics and Plant Breeding Pub Date : 2022-10-06 DOI:10.17221/55/2022-cjgpb
M. A. R. Arif, E. Arseniuk, A. Börner
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引用次数: 3

摘要

可持续的全球小麦生产需要对主要小麦病害有足够抵抗力的小麦品种。世界范围内具有重要经济意义的真菌病原体包括白粉病(PM)、黄锈病(YR)、叶锈病(LR)和引起斑点病的病原体,包括nodorum blotch (SNB)和Septoria tritici blotch (STB)。在这里,我们通过连续两年(2019年和2020年)的图像表型分析,对不同来源的冬小麦品种在自然感染条件下与当地流行的PM、YR、LR、STB和SNB种群进行了比较。我们发现有几个品种能抵抗多种疾病。根据分子标记间的连锁不平衡,我们获得了所有参数的206个标记性状关联,并将其浓缩为79个数量性状位点(PM 8个,LR 25个,YR 11个,SNB 19个,STB 8个)。详细讨论了存在于这些qtl上的已知基因。通过qtl和分子标记鉴定出的抗病品种可作为今后小麦育种的优质原料。
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Genetic variability for resistance to fungal pathogens in bread wheat
Sustainable global wheat production requires wheat varieties, that are sufficiently resistant to the main wheat diseases. The economically important fungal pathogens worldwide include powdery mildew (PM), yellow rust (YR), leaf rust (LR) and blotch causing pathogens including Septoria nodorum blotch (SNB) and Septoria tritici blotch (STB). Here, we present the evaluation of winter wheat varieties of diverse origin against the prevalent local populations of PM, YR, LR, STB and SNB under natural infection conditions through image-based phenotyping in two consecutive years (2019 and 2020). We found several varieties to be resistant against multiple diseases. Following the association mapping, we obtained a total of 206 marker trait associations for all the parameters scored which were condensed to 79 quantitative trait loci (QTLs) (eight QTLs for PM, 25 QTLs for LR, 11 QTLs for YR, 19 QTLs for SNB and eight QTLs for STB) based on the linkage disequilibrium among the molecular markers. The known genes present at these QTLs are discussed in detail. The varieties resistant to multiple diseases, identified with the QTLs and molecular markers can be considered as elite raw material for future wheat breeding.
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来源期刊
Czech Journal of Genetics and Plant Breeding
Czech Journal of Genetics and Plant Breeding Agricultural and Biological Sciences-Plant Science
CiteScore
2.20
自引率
0.00%
发文量
25
审稿时长
>12 weeks
期刊介绍: Original scientific papers, critical reviews articles and short communications from the field of theoretical and applied plant genetics, plant biotechnology and plant breeding. Papers are published in English.
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