RustFungiGenomicsV1, Main, Corpus, bibRecord, 000423

Grass Hosts Harbor More Diverse Isolates of Puccinia striiformis Than Cereal Crops.

Identifieur interne : 000423 ( Main/Corpus ); précédent : 000422; suivant : 000424

Grass Hosts Harbor More Diverse Isolates of Puccinia striiformis Than Cereal Crops.

Auteurs : P. Cheng ; X M Chen ; D R See

Source :

Phytopathology [ 0031-949X ] ; 2016.

RBID : pubmed:26667189

English descriptors

KwdEn :
- Basidiomycota (genetics), Basidiomycota (pathogenicity), Cluster Analysis (MeSH), Crops, Agricultural (MeSH), Genetic Variation (MeSH), Genotype (MeSH), Hordeum (microbiology), Microsatellite Repeats (genetics), Plant Diseases (microbiology), Poaceae (microbiology), Triticum (microbiology), Virulence (MeSH).
MESH :
- genetics : Basidiomycota, Microsatellite Repeats.
- microbiology : Hordeum, Plant Diseases, Poaceae, Triticum.
- pathogenicity : Basidiomycota.
- Cluster Analysis, Crops, Agricultural, Genetic Variation, Genotype, Virulence.

Abstract

Puccinia striiformis causes stripe rust on cereal crops and many grass species. However, it is not clear whether the stripe rust populations on grasses are able to infect cereal crops and how closely they are related to each other. In this study, 103 isolates collected from wheat, barley, triticale, rye, and grasses in the United States were characterized by virulence tests and simple sequence repeat (SSR) markers. Of 69 pathotypes identified, 41 were virulent on some differentials of wheat only, 10 were virulent on some differentials of barley only, and 18 were virulent on some differentials of both wheat and barley. These pathotypes were clustered into three groups: group one containing isolates from wheat, triticale, rye, and grasses; group two isolates were from barley and grasses; and group three isolates were from grasses and wheat. SSR markers identified 44 multilocus genotypes (MLGs) and clustered them into three major molecular groups (MG) with MLGs in MG3 further classified into three subgroups. Isolates from cereal crops were present in one or more of the major or subgroups, but not all, whereas grass isolates were present in all of the major and subgroups. The results indicate that grasses harbor more diverse isolates of P. striiformis than the cereals.

DOI: 10.1094/PHYTO-07-15-0155-R
PubMed: 26667189

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pubmed:26667189

Le document en format XML

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<author><name sortKey="Cheng, P" sort="Cheng, P" uniqKey="Cheng P" first="P" last="Cheng">P. Cheng</name>
<affiliation><nlm:affiliation>First, second, and third authors: Department of Plant Pathology, Washington State University, Pullman 99164-6430; and second and third authors: U.S. Department of Agriculture-Agriculture Research Service, Wheat Genetics, Quality, Physiology and Disease Research Unit, Pullman, WA 99164-6430.</nlm:affiliation>
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<author><name sortKey="Chen, X M" sort="Chen, X M" uniqKey="Chen X" first="X M" last="Chen">X M Chen</name>
<affiliation><nlm:affiliation>First, second, and third authors: Department of Plant Pathology, Washington State University, Pullman 99164-6430; and second and third authors: U.S. Department of Agriculture-Agriculture Research Service, Wheat Genetics, Quality, Physiology and Disease Research Unit, Pullman, WA 99164-6430.</nlm:affiliation>
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<author><name sortKey="See, D R" sort="See, D R" uniqKey="See D" first="D R" last="See">D R See</name>
<affiliation><nlm:affiliation>First, second, and third authors: Department of Plant Pathology, Washington State University, Pullman 99164-6430; and second and third authors: U.S. Department of Agriculture-Agriculture Research Service, Wheat Genetics, Quality, Physiology and Disease Research Unit, Pullman, WA 99164-6430.</nlm:affiliation>
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<affiliation><nlm:affiliation>First, second, and third authors: Department of Plant Pathology, Washington State University, Pullman 99164-6430; and second and third authors: U.S. Department of Agriculture-Agriculture Research Service, Wheat Genetics, Quality, Physiology and Disease Research Unit, Pullman, WA 99164-6430.</nlm:affiliation>
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<affiliation><nlm:affiliation>First, second, and third authors: Department of Plant Pathology, Washington State University, Pullman 99164-6430; and second and third authors: U.S. Department of Agriculture-Agriculture Research Service, Wheat Genetics, Quality, Physiology and Disease Research Unit, Pullman, WA 99164-6430.</nlm:affiliation>
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<series><title level="j">Phytopathology</title>
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<term>Cluster Analysis (MeSH)</term>
<term>Crops, Agricultural (MeSH)</term>
<term>Genetic Variation (MeSH)</term>
<term>Genotype (MeSH)</term>
<term>Hordeum (microbiology)</term>
<term>Microsatellite Repeats (genetics)</term>
<term>Plant Diseases (microbiology)</term>
<term>Poaceae (microbiology)</term>
<term>Triticum (microbiology)</term>
<term>Virulence (MeSH)</term>
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<term>Microsatellite Repeats</term>
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<keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Hordeum</term>
<term>Plant Diseases</term>
<term>Poaceae</term>
<term>Triticum</term>
</keywords>
<keywords scheme="MESH" qualifier="pathogenicity" xml:lang="en"><term>Basidiomycota</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Cluster Analysis</term>
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<term>Genetic Variation</term>
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<front><div type="abstract" xml:lang="en">Puccinia striiformis causes stripe rust on cereal crops and many grass species. However, it is not clear whether the stripe rust populations on grasses are able to infect cereal crops and how closely they are related to each other. In this study, 103 isolates collected from wheat, barley, triticale, rye, and grasses in the United States were characterized by virulence tests and simple sequence repeat (SSR) markers. Of 69 pathotypes identified, 41 were virulent on some differentials of wheat only, 10 were virulent on some differentials of barley only, and 18 were virulent on some differentials of both wheat and barley. These pathotypes were clustered into three groups: group one containing isolates from wheat, triticale, rye, and grasses; group two isolates were from barley and grasses; and group three isolates were from grasses and wheat. SSR markers identified 44 multilocus genotypes (MLGs) and clustered them into three major molecular groups (MG) with MLGs in MG3 further classified into three subgroups. Isolates from cereal crops were present in one or more of the major or subgroups, but not all, whereas grass isolates were present in all of the major and subgroups. The results indicate that grasses harbor more diverse isolates of P. striiformis than the cereals. </div>
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<DateRevised><Year>2016</Year>
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<Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0031-949X</ISSN>
<JournalIssue CitedMedium="Print"><Volume>106</Volume>
<Issue>4</Issue>
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<Month>Apr</Month>
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<Title>Phytopathology</Title>
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<ArticleTitle>Grass Hosts Harbor More Diverse Isolates of Puccinia striiformis Than Cereal Crops.</ArticleTitle>
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<ELocationID EIdType="doi" ValidYN="Y">10.1094/PHYTO-07-15-0155-R</ELocationID>
<Abstract><AbstractText>Puccinia striiformis causes stripe rust on cereal crops and many grass species. However, it is not clear whether the stripe rust populations on grasses are able to infect cereal crops and how closely they are related to each other. In this study, 103 isolates collected from wheat, barley, triticale, rye, and grasses in the United States were characterized by virulence tests and simple sequence repeat (SSR) markers. Of 69 pathotypes identified, 41 were virulent on some differentials of wheat only, 10 were virulent on some differentials of barley only, and 18 were virulent on some differentials of both wheat and barley. These pathotypes were clustered into three groups: group one containing isolates from wheat, triticale, rye, and grasses; group two isolates were from barley and grasses; and group three isolates were from grasses and wheat. SSR markers identified 44 multilocus genotypes (MLGs) and clustered them into three major molecular groups (MG) with MLGs in MG3 further classified into three subgroups. Isolates from cereal crops were present in one or more of the major or subgroups, but not all, whereas grass isolates were present in all of the major and subgroups. The results indicate that grasses harbor more diverse isolates of P. striiformis than the cereals. </AbstractText>
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<KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">microsatellite markers</Keyword>
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Grass Hosts Harbor More Diverse Isolates of Puccinia striiformis Than Cereal Crops.

Grass Hosts Harbor More Diverse Isolates of Puccinia striiformis Than Cereal Crops.

Source :

English descriptors

Abstract

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