Microsatellite markers linked to six Russian wheat aphid resistance genes in wheat

2001 ◽  
Vol 102 (4) ◽  
pp. 504-510 ◽  
Author(s):  
X. M. Liu ◽  
C. M. Smith ◽  
B. S. Gill ◽  
V. Tolmay
Keyword(s):  
Microsatellite Markers ◽  
Resistance Genes ◽  
Russian Wheat Aphid ◽  
Aphid Resistance

Genetic mapping of Russian wheat aphid resistance genes Dn2 and Dn4 in wheat

Genome ◽  
1998 ◽  
Vol 41 (2) ◽  
pp. 303-306 ◽  
Author(s):  
Z.-Q. Ma ◽  
A. Saidi ◽  
J.S. Quick ◽  
N.L.V. Lapitan
Keyword(s):  
Genetic Mapping ◽  
Resistance Genes ◽  
Russian Wheat Aphid ◽  
Aphid Resistance

Molecular Mapping and Allelic Relationships of Russian Wheat Aphid–Resistance Genes

Crop Science ◽  
2005 ◽  
Vol 45 (6) ◽  
pp. 2273-2280 ◽  
Author(s):  
X. M. Liu ◽  
C. M. Smith ◽  
B. R. Friebe ◽  
B. S. Gill
Keyword(s):  
Resistance Genes ◽  
Molecular Mapping ◽  
Russian Wheat Aphid ◽  
Aphid Resistance

Genetic mapping of Russian wheat aphid resistance genes Dn2 and Dn4 in wheat

Genome ◽  
1998 ◽  
Vol 41 (2) ◽  
pp. 303-306 ◽  
Author(s):  
Z -Q Ma ◽  
A Saidi ◽  
J S Quick ◽  
NLV Lapitan
Keyword(s):  
Triticum Aestivum ◽  
Restriction Fragment Length Polymorphism ◽  
Resistance Genes ◽  
Fragment Length Polymorphism ◽  
Triticum Aestivum L ◽  
Russian Wheat Aphid ◽  
Aphid Resistance ◽  
Rflp Markers ◽  
Marker Assisted Breeding ◽  
Restriction Fragment Length

To obtain markers for marker-assisted breeding of Russian wheat aphid resistance in wheat (Triticum aestivum L.), resistance genes Dn2 and Dn4 were mapped with restriction fragment length polymorphism (RFLP) markers, using populations derived from PI 62660 x 'Carson' and PI 372129 x 'Yuma'. PI 262660 and PI 372129 are the donor parents of Dn2 and Dn4, respectively. A locus detected by marker KsuA1 was linked to Dn2 at a distance of 9.8 cM on the long arm of chromosome 7D, and a locus detected by marker ABC156 was 11.6 cM away from Dn4 on the short arm of chromosome 1D.Key words: Russian wheat aphid, RFLP markers, Triticum aestivum.

Variation in Soybean Aphid (Hemiptera: Aphididae) Biotypes Within Fields

2021 ◽  
Author(s):  
S J Bhusal ◽  
R L Koch ◽  
A J Lorenz
Keyword(s):  
Resistance Genes ◽  
Environmental Sustainability ◽  
Soybean Aphid ◽  
Aphis Glycines ◽  
Aphid Resistance ◽  
Soybean Cultivars ◽  
Major Pest ◽  
Single Field ◽  
Aphis Glycines Matsumura ◽  
Multiple Resistance Genes

Abstract Soybean aphid (Aphis glycines Matsumura (Hemiptera: Aphididae)) has been a major pest of soybean in North America since its detection in this continent in 2000 and subsequent spread. Although several aphid resistance genes have been identified, at least four soybean aphid biotypes have been discovered, with three of them being virulent on soybean cultivars with certain soybean aphid resistance genes. These biotypes are known to vary across years and locations, but information on their variation within single fields is limited. An investigation was conducted to study the variation of soybean aphid biotypes within single townships and fields in Minnesota. Screening of 28 soybean aphid isolates collected from seven soybean fields (six soybean fields in Cairo and Wellington Townships of Renville County, MN and one field in Wilmar Township of Kandiyohi County, MN) revealed the existence of multiple known biotypes of soybean aphid within single fields of soybean. We found up to three biotypes of soybean aphid in a single field. Two biotypes were found in five fields while only one field had only a single biotype. Three isolates presented reactions on a panel of resistant and susceptible indicator lines that were different from known biotypes. These results highlight the importance of characterizing soybean aphid biotypes in small geographical areas and utilizing generated knowledge to develop soybean cultivars pyramided with multiple resistance genes. The outcome will be decreased use of insecticides, thereby improving economic and environmental sustainability of soybean production.

Molecular Mapping of Russian Wheat Aphid Resistance from Triticale Accession PI 386156

Crop Science ◽  
1999 ◽  
Vol 39 (6) ◽  
pp. 1707-1710 ◽  
Author(s):  
A. K. Fritz ◽  
S. Caldwell ◽  
W. D. Worrall
Keyword(s):  
Molecular Mapping ◽  
Russian Wheat Aphid ◽  
Aphid Resistance

scholarly journals Accessing a Russian Wheat Aphid Resistance Gene in Bread Wheat by Long‐Read Technologies

2019 ◽  
Vol 12 (2) ◽  
pp. 180065 ◽  
Author(s):  
Zuzana Tulpová ◽  
Helena Toegelová ◽  
Nora L. V. Lapitan ◽  
Frank B. Peairs ◽  
Jiří Macas ◽  
...  
Keyword(s):  
Resistance Gene ◽  
Bread Wheat ◽  
Russian Wheat Aphid ◽  
Aphid Resistance ◽  
Long Read
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