scholarly journals Genetic diversity and population structure of Iranian isolates of Fusarium oxysporum f. sp. ciceris, the causal agent of chickpea wilt, using ISSR and DAMD-PCR markers

2018 ◽  
Vol 16 (4) ◽  
Keyword(s):  
Genetic Diversity ◽  
Population Structure ◽  
Fusarium Oxysporum ◽  
Causal Agent ◽  
Pcr Markers ◽  
Chickpea Wilt

scholarly journals Genetic Diversity and Population Structure of Races of Fusarium oxysporum Causing Cotton Wilt

2020 ◽  
Vol 10 (9) ◽  
pp. 3261-3269
Author(s):  
Hannah C Halpern ◽  
Peng Qi ◽  
Robert C Kemerait ◽  
Marin T Brewer
Keyword(s):  
Genetic Diversity ◽  
Population Structure ◽  
Fusarium Oxysporum ◽  
Principal Components ◽  
Phylogenetic Trees ◽  
Elongation Factor ◽  
Intergenic Spacer ◽  
Pathogenic Fungi ◽  
The United States ◽  
Intergenic Spacer Region

Abstract To better understand the evolution of virulence we are interested in identifying the genetic basis of this trait in pathogenic fungi and in developing tools for the rapid characterization of variation in virulence among populations associated with epidemics. Fusarium oxysporum f. sp. vasinfectum (FOV) is a haploid fungus that causes devastating outbreaks of Fusarium wilt of cotton wherever it is grown. In the United States, six nominal races and eleven genotypes of FOV have been characterized based on the translation elongation factor (EF-1α) gene and intergenic spacer region (IGS), but it is unclear how race or genotype based on these regions relates to population structure or virulence. We used genotyping-by-sequencing to identify SNPs and determine genetic diversity and population structure among 86 diverse FOV isolates. Six individuals of Fusarium oxysporum closely related to FOV were genotyped and included in some analyses. Between 193 and 354 SNPs were identified and included in the analyses depending on the pipeline and filtering criteria used. Phylogenetic trees, minimum spanning networks (MSNs), principal components analysis (PCA), and discriminant analysis of principal components (DAPC) demonstrated that races and genotypes of FOV are generally not structured by EF-1α genotype, nor are they monophyletic groups with the exception of race 4 isolates, which are distinct. Furthermore, DAPC identified between 11 and 14 genetically distinct clusters of FOV, whereas only eight EF-1α genotypes were represented among isolates; suggesting that FOV, especially isolates within the widely distributed and common race 1 genotype, is more genetically diverse than currently recognized.

Genetic diversity and population structure ofRhizoctonia solaniAG-1 IA, the causal agent of rice sheath blight, in South China

2014 ◽  
Vol 36 (2) ◽  
pp. 179-186 ◽  
Author(s):  
Can-Wei Shu ◽  
Cheng-Jia Zou ◽  
Jie-Ling Chen ◽  
Fang Tang ◽  
Run-Hua Yi ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Population Structure ◽  
South China ◽  
Sheath Blight ◽  
Causal Agent ◽  
Rice Sheath Blight

scholarly journals Inhibitory Potential of Selected Fungicides and Plant Extracts Against Mycelial Growth of Fusarium oxysporum f. sp. ciceri Causal Agent of Chickpea Wilt

2021 ◽  
Vol 1 (1) ◽  
pp. 09-13
Author(s):  
Hafiz Abdul Haseeb ◽  
Usama Naseem ◽  
Safdar Ali ◽  
Shahbaz Talib Sahi
Keyword(s):  
Fusarium Oxysporum ◽  
Plant Extracts ◽  
Mycelial Growth ◽  
Colony Growth ◽  
Causal Agent ◽  
Limiting Factors ◽  
Chickpea Wilt ◽  
Inhibitory Potential

Chickpea wilt is one of the major limiting factors, for low yield of chickpea. In Pakistan chickpea wilt causes 10-50% losses every year. At all concentrations, Carbendazim and Benomyl proved most effective while Acrobat was least effective in suppressing the mycilial growth of the Fusarium oxysporum f. sp. ciceri.  However, higher concentration of Acrobat was also slightly effective. Among the plant extracts, higher concentrations of Sufaida and Neem proved to be effective while onion failed to control the colony growth of Fusarium oxysporum f.sp. ciceri at all concentrations.

Genetic diversity and population structure of Populus yunnanensis revealed by SSR markers

2020 ◽  
Vol 52 (6) ◽  
Author(s):  
Anpei Zhou ◽  
Dan Zong ◽  
Peihua Gan ◽  
Yao Zhang ◽  
Dan Li ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Population Structure ◽  
Ssr Markers
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