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

X. Q. Huang; S. L.K. Hsam; F. J. Zeller

doi:10.1007/s001220050646

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

X. Q. Huang, S. L.K. Hsam, F. J. Zeller

Chair of Plant Breeding

Technical University of Munich

Research output: Contribution to journal › Article › peer-review

35 Scopus citations

Abstract

Chinese wheat landrace Chiyacao exhibited a response pattern different from that of the cultivars/lines possessing documented Pm genes after inoculation with 106 isolates of Erysiphe graminis f. 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 F₁ plants were allowed to self-pollinate and to produce F₂ seeds. Seedlings of F₂ plants and their parents were inoculated with isolates nos. 5 and 12 of Erysiphe graminis f. 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 designated Pm 24.

Original language	English
Pages (from-to)	950-953
Number of pages	4
Journal	Theoretical and Applied Genetics
Volume	95
Issue number	5-6
DOIs	https://doi.org/10.1007/s001220050646
State	Published - Oct 1997

Keywords

Gene location
Monosomic analysis
Powdery mildew resistance
Triticum aestivum
Wheat landrace

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10.1007/s001220050646

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title = "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",

abstract = "Chinese wheat landrace Chiyacao exhibited a response pattern different from that of the cultivars/lines possessing documented Pm genes after inoculation with 106 isolates of Erysiphe graminis f. 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 F1 plants were allowed to self-pollinate and to produce F2 seeds. Seedlings of F2 plants and their parents were inoculated with isolates nos. 5 and 12 of Erysiphe graminis f. 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 designated Pm 24.",

keywords = "Gene location, Monosomic analysis, Powdery mildew resistance, Triticum aestivum, Wheat landrace",

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year = "1997",

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AU - Huang, X. Q.

AU - Hsam, S. L.K.

AU - Zeller, F. J.

PY - 1997/10

Y1 - 1997/10

N2 - Chinese wheat landrace Chiyacao exhibited a response pattern different from that of the cultivars/lines possessing documented Pm genes after inoculation with 106 isolates of Erysiphe graminis f. 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 F1 plants were allowed to self-pollinate and to produce F2 seeds. Seedlings of F2 plants and their parents were inoculated with isolates nos. 5 and 12 of Erysiphe graminis f. 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 designated Pm 24.

AB - Chinese wheat landrace Chiyacao exhibited a response pattern different from that of the cultivars/lines possessing documented Pm genes after inoculation with 106 isolates of Erysiphe graminis f. 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 F1 plants were allowed to self-pollinate and to produce F2 seeds. Seedlings of F2 plants and their parents were inoculated with isolates nos. 5 and 12 of Erysiphe graminis f. 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 designated Pm 24.

KW - Gene location

KW - Monosomic analysis

KW - Powdery mildew resistance

KW - Triticum aestivum

KW - Wheat landrace

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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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Keywords

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