scholarly journals Population Structure and Spatial Influence of Agricultural Variables on Hessian Fly Populations in the Southeastern United States

2011 ◽  
Vol 40 (5) ◽  
pp. 1303-1316 ◽  
Author(s):  
Philip K. Morton ◽  
Carolyn J. Foley ◽  
Brandon J. Schemerhorn
Keyword(s):  
United States ◽  
Population Structure ◽  
Southeastern United States ◽  
Hessian Fly ◽  
Spatial Influence

Virulence in Hessian Fly (Diptera: Cecidomyiidae) Field Collections From the Southeastern United States to 21 Resistance Genes in Wheat

2010 ◽  
Vol 103 (6) ◽  
pp. 2229-2235 ◽  
Author(s):  
Sue E. Cambron ◽  
G. David Buntin ◽  
Randy Weisz ◽  
Jeffery D. Holland ◽  
Kathy L. Flanders ◽  
...  
Keyword(s):  
United States ◽  
Resistance Genes ◽  
Southeastern United States ◽  
Hessian Fly

H33 : A Wheat Gene Providing Hessian Fly Resistance for the Southeastern United States

Crop Science ◽  
2014 ◽  
Vol 54 (5) ◽  
pp. 2045-2053 ◽  
Author(s):  
Melissa J. McDonald ◽  
Herbert W. Ohm ◽  
Kristen D. Rinehart ◽  
Marcelo P. Giovanini ◽  
Christie E. Williams
Keyword(s):  
United States ◽  
Southeastern United States ◽  
Hessian Fly ◽  
Hessian Fly Resistance ◽  
Wheat Gene

scholarly journals Effectiveness of Genes for Hessian Fly (Diptera: Cecidomyiidae) Resistance in the Southeastern United States

2015 ◽  
Vol 109 (1) ◽  
pp. 399-405 ◽  
Author(s):  
Richard H. Shukle ◽  
Sue E. Cambron ◽  
Hossam Abdel Moniem ◽  
Brandon J. Schemerhorn ◽  
Julie Redding ◽  
...  
Keyword(s):  
United States ◽  
Southeastern United States ◽  
Hessian Fly

scholarly journals Spatial Genetic Structure and Population Dynamics of Gummy Stem Blight Fungi Within and Among Watermelon Fields in the Southeastern United States

2016 ◽  
Vol 106 (8) ◽  
pp. 900-908 ◽  
Author(s):  
Hao-Xi Li ◽  
Marin Talbot Brewer
Keyword(s):  
United States ◽  
Population Structure ◽  
Genetic Structure ◽  
Spatial Genetic Structure ◽  
Southeastern United States ◽  
Principal Coordinates Analysis ◽  
Stem Blight ◽  
Gummy Stem Blight ◽  
Principal Coordinates ◽  
Regional Population

The epidemiology of gummy stem blight (GSB) of cucurbits, particularly the sources of inoculum for epidemics, and the regional population genetic structure of the causal fungi Stagonosporopsis cucurbitacearum (syn. Didymella bryoniae), S. citrulli, and S. caricae are not well understood. Our goal was to better understand the population structure and fine-scale spatial genetic structure of Stagonosporopsis spp. in the southeastern United States. Overall, 528 isolates collected from nine fields in 2012, 2013, and 2014 were genotyped with 16 microsatellite markers. In 2013, S. caricae was first detected in the southeastern United States; however, S. citrulli remained the dominant species, representing 96.4% of the isolates. Principal coordinates analysis, discriminant analysis of principle components, and analysis of molecular variance indicated that most populations of S. citrulli were genotypically diverse, yet dominated by widely distributed clones that contributed to regional population structure. Spatial genetic structure resulting from aggregation of clonal genotypes at distances of less than 10 meters was detected within two of three fields in which isolate location was recorded. Studies on the epidemiological and fitness differences between S. citrulli and S. caricae and of prevalent and widespread clones will provide insight into the population structure and species dynamics observed in GSB epidemics.

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