Chromosomal location of genes for seedling resistance to tan spot and Stagonospora nodorum blotch in tetraploid wheat

P. K. Singh; M. Mergoum; T. B. Adhikari; S. F. Kianian; E. M. Elias

doi:10.1007/s10681-006-9297-y

Chromosomal location of genes for seedling resistance to tan spot and Stagonospora nodorum blotch in tetraploid wheat

P. K. Singh, M. Mergoum, T. B. Adhikari, S. F. Kianian, E. M. Elias

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

15 Scopus citations

Abstract

Tan spot and Stagonospora nodorum blotch caused by Pyrenophora tritici-repentis (Died.) Drechs. and Phaeosphaeria nodorum (E. Müller) Hedjarroude, respectively, are the major components of the leaf spotting disease complex of durum wheat (Triticum turgidum L.). These diseases induce significant quality and yield reductions and control through host plant resistance is the most effective and economical method. The objectives of this study were to determine the chromosomal locations of major genes conferring resistance to P. tritici-repentis races 1-3 and 5, toxins Ptr ToxA and Ptr ToxB, and P. nodorum isolate Sn2000 in a set of Langdon- Triticum dicoccoides (Israel A) durum substitution lines. Plants were evaluated for disease reaction at the two-leaf stage under controlled environmental conditions. Based on the reactions of the substitution lines, the chromosomal locations of the resistance genes for P. tritici-repentis races 1 and 2, and 3 and 5, were determined to be chromosomes 5B and 3B, respectively. Resistance to toxin Ptr ToxA was located on chromosome 5B whereas toxin Ptr ToxB failed to induce symptoms in the tetraploid genotypes, including the substitution lines. Resistance to P. nodorum isolate Sn2000 was located on chromosome 5B. This is the first study to reveal the chromosomal locations of major genes for resistance to tan spot and Stagonospora nodorum blotch in tetraploid wheat using the Langdon-T. dicoccoides (Israel A) substitution lines.

Original language	English (US)
Pages (from-to)	27-34
Number of pages	8
Journal	Euphytica
Volume	155
Issue number	1-2
DOIs	https://doi.org/10.1007/s10681-006-9297-y
State	Published - May 2007
Externally published	Yes

Bibliographical note

Funding Information:
Acknowledgments Financial support from Wheat Research and Promotion Council, Minnesota, USA, North Dakota Wheat Commission, and State Board of Agricultural Research and Education, North Dakota, USA, is gratefully acknowledged. Technical help provided by Seema Singh is greatly appreciated.

Keywords

Durum
Leaf spots
Resistance
Wheat

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title = "Chromosomal location of genes for seedling resistance to tan spot and Stagonospora nodorum blotch in tetraploid wheat",

abstract = "Tan spot and Stagonospora nodorum blotch caused by Pyrenophora tritici-repentis (Died.) Drechs. and Phaeosphaeria nodorum (E. M{\"u}ller) Hedjarroude, respectively, are the major components of the leaf spotting disease complex of durum wheat (Triticum turgidum L.). These diseases induce significant quality and yield reductions and control through host plant resistance is the most effective and economical method. The objectives of this study were to determine the chromosomal locations of major genes conferring resistance to P. tritici-repentis races 1-3 and 5, toxins Ptr ToxA and Ptr ToxB, and P. nodorum isolate Sn2000 in a set of Langdon- Triticum dicoccoides (Israel A) durum substitution lines. Plants were evaluated for disease reaction at the two-leaf stage under controlled environmental conditions. Based on the reactions of the substitution lines, the chromosomal locations of the resistance genes for P. tritici-repentis races 1 and 2, and 3 and 5, were determined to be chromosomes 5B and 3B, respectively. Resistance to toxin Ptr ToxA was located on chromosome 5B whereas toxin Ptr ToxB failed to induce symptoms in the tetraploid genotypes, including the substitution lines. Resistance to P. nodorum isolate Sn2000 was located on chromosome 5B. This is the first study to reveal the chromosomal locations of major genes for resistance to tan spot and Stagonospora nodorum blotch in tetraploid wheat using the Langdon-T. dicoccoides (Israel A) substitution lines.",

keywords = "Durum, Leaf spots, Resistance, Wheat",

author = "Singh, {P. K.} and M. Mergoum and Adhikari, {T. B.} and Kianian, {S. F.} and Elias, {E. M.}",

note = "Funding Information: Acknowledgments Financial support from Wheat Research and Promotion Council, Minnesota, USA, North Dakota Wheat Commission, and State Board of Agricultural Research and Education, North Dakota, USA, is gratefully acknowledged. Technical help provided by Seema Singh is greatly appreciated.",

year = "2007",

month = may,

doi = "10.1007/s10681-006-9297-y",

language = "English (US)",

volume = "155",

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T1 - Chromosomal location of genes for seedling resistance to tan spot and Stagonospora nodorum blotch in tetraploid wheat

AU - Singh, P. K.

AU - Mergoum, M.

AU - Adhikari, T. B.

AU - Kianian, S. F.

AU - Elias, E. M.

N1 - Funding Information: Acknowledgments Financial support from Wheat Research and Promotion Council, Minnesota, USA, North Dakota Wheat Commission, and State Board of Agricultural Research and Education, North Dakota, USA, is gratefully acknowledged. Technical help provided by Seema Singh is greatly appreciated.

PY - 2007/5

Y1 - 2007/5

N2 - Tan spot and Stagonospora nodorum blotch caused by Pyrenophora tritici-repentis (Died.) Drechs. and Phaeosphaeria nodorum (E. Müller) Hedjarroude, respectively, are the major components of the leaf spotting disease complex of durum wheat (Triticum turgidum L.). These diseases induce significant quality and yield reductions and control through host plant resistance is the most effective and economical method. The objectives of this study were to determine the chromosomal locations of major genes conferring resistance to P. tritici-repentis races 1-3 and 5, toxins Ptr ToxA and Ptr ToxB, and P. nodorum isolate Sn2000 in a set of Langdon- Triticum dicoccoides (Israel A) durum substitution lines. Plants were evaluated for disease reaction at the two-leaf stage under controlled environmental conditions. Based on the reactions of the substitution lines, the chromosomal locations of the resistance genes for P. tritici-repentis races 1 and 2, and 3 and 5, were determined to be chromosomes 5B and 3B, respectively. Resistance to toxin Ptr ToxA was located on chromosome 5B whereas toxin Ptr ToxB failed to induce symptoms in the tetraploid genotypes, including the substitution lines. Resistance to P. nodorum isolate Sn2000 was located on chromosome 5B. This is the first study to reveal the chromosomal locations of major genes for resistance to tan spot and Stagonospora nodorum blotch in tetraploid wheat using the Langdon-T. dicoccoides (Israel A) substitution lines.

AB - Tan spot and Stagonospora nodorum blotch caused by Pyrenophora tritici-repentis (Died.) Drechs. and Phaeosphaeria nodorum (E. Müller) Hedjarroude, respectively, are the major components of the leaf spotting disease complex of durum wheat (Triticum turgidum L.). These diseases induce significant quality and yield reductions and control through host plant resistance is the most effective and economical method. The objectives of this study were to determine the chromosomal locations of major genes conferring resistance to P. tritici-repentis races 1-3 and 5, toxins Ptr ToxA and Ptr ToxB, and P. nodorum isolate Sn2000 in a set of Langdon- Triticum dicoccoides (Israel A) durum substitution lines. Plants were evaluated for disease reaction at the two-leaf stage under controlled environmental conditions. Based on the reactions of the substitution lines, the chromosomal locations of the resistance genes for P. tritici-repentis races 1 and 2, and 3 and 5, were determined to be chromosomes 5B and 3B, respectively. Resistance to toxin Ptr ToxA was located on chromosome 5B whereas toxin Ptr ToxB failed to induce symptoms in the tetraploid genotypes, including the substitution lines. Resistance to P. nodorum isolate Sn2000 was located on chromosome 5B. This is the first study to reveal the chromosomal locations of major genes for resistance to tan spot and Stagonospora nodorum blotch in tetraploid wheat using the Langdon-T. dicoccoides (Israel A) substitution lines.

KW - Durum

KW - Leaf spots

KW - Resistance

KW - Wheat

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M3 - Article

AN - SCOPUS:34047233872

SN - 0014-2336

VL - 155

SP - 27

EP - 34

JO - Euphytica

JF - Euphytica

IS - 1-2

ER -

Chromosomal location of genes for seedling resistance to tan spot and Stagonospora nodorum blotch in tetraploid wheat

Abstract

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Keywords

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