Phylogenetic relationships of sugarcane rust fungi

Dixon, L. J.; Castlebury, Lisa A.; Aime, M. Catherine; Glynn, Neil C.; Comstock, Jack C.

doi:10.1007/s11557-009-0649-6

Cited by 61 publications

(38 citation statements)

References 24 publications

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“…Large-scale systematic studies of rust fungi have focused mainly on the SSU and LSU regions of rDNA (Aime 2006;Beenken et al 2012;Dixon et al 2010;Maier et al 2003Maier et al , 2007Minnis et al 2012;Wingfield et al 2004;Yun et al 2011) (Table 21). Protein coding genes such as beta-tubulin ; Van der Merwe et al 2007 and elongation factor (TEF) (Seier et al 2009; Van der Merwe et al 2007) were successfully used at the family, genus and species level in rust fungi, although beta-tubulin required cloning rather than direct sequencing of PCR product.…”

Section: Molecular Phylogenymentioning

confidence: 99%

One stop shop: backbones trees for important phytopathogenic genera: I (2014)

et al. 2014

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Many fungi are pathogenic on plants and cause significant damage in agriculture and forestry. They are also part of the natural ecosystem and may play a role in regulating plant numbers/density. Morphological identification and analysis of plant pathogenic fungi, while important, is often hampered by the scarcity of discriminatory taxonomic characters and the endophytic or inconspicuous nature of these fungi. Molecular (DNA sequence) data for plant pathogenic fungi have emerged as key information for diagnostic and classification studies, although hampered in part by non-standard laboratory practices and analytical methods. To facilitate current and future research, this study provides phylogenetic synopses for 25 groups of plant pathogenic fungi in the Ascomycota, Basidiomycota, Mucormycotina (Fungi), and Oomycota, using recent molecular data, up-to-date names, and the latest taxonomic insights. Lineagespecific laboratory protocols together with advice on their application, as well as general observations, are also provided. We hope to maintain updated backbone trees of these fungal lineages over time and to publish them jointly as new data emerge. Researchers of plant pathogenic fungi not covered by the present study are invited to join this future effort. Bipolaris, Botryosphaeriaceae,

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Section: Molecular Phylogenymentioning

confidence: 99%

One stop shop: backbones trees for important phytopathogenic genera: I (2014)

et al. 2014

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“…It is important for sugarcane breeders to develop a database of parental clones using agronomic and physiological traits and molecular markers for improving disease resistance and for sustaining yields and profits [19]. Phylogenetic analysis of sugarcane rusts based on rDNA sequences and phylogenetic relationships of sugarcane rust fungi have been reported [26,27]. The sugarcane brown rust resistance gene (Bru1) was recently found to be prevalent in 86% of brown rust-resistant clones in a sample of 380 modern cultivars and breeding materials covering worldwide diversity [28].…”

Section: Bru1 In Parental Clones and Rust Rating In Their Progenymentioning

confidence: 99%

Screening for Sugarcane Brown Rust in the First Clonal Stage of the Canal Point Sugarcane Breeding Program

Zhao

Davidson²,

Baltazar³

et al. 2015

Agronomy

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Sugarcane (Saccharum spp.) brown rust (caused by Puccinia melanocephala Syd. & P. Syd.) was first reported in the United States in 1978 and is still one of the great challenges for sugarcane production. A better understanding of sugarcane genotypic variation in response to brown rust will help optimize breeding and selection strategies for disease resistance. Brown rust ratings were scaled from non-infection (0) to severe infection (4) with intervals of 0.5 and routinely recorded for genotypes in the first clonal selection stage of the Canal Point sugarcane breeding program in Florida. Data were collected from 14,272 and 12,661 genotypes and replicated check cultivars in 2012 and 2013, respectively. Mean rust rating, % infection, and severity in each family and progeny of female parent were determined, and their coefficients of variation (CV) within and among families (females) were estimated. Considerable variation exists in rust ratings among families or females. The families and female parents with high susceptibility or resistance to brown rust were identified and ranked. The findings of this study can help scientists to evaluate sugarcane crosses and parents for brown rust disease, to use desirable parents for crossing, and to improve genetic resistance to brown rust in breeding programs. OPEN ACCESSAgronomy 2015, 5 342

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“…A total of 34 isolates were obtained from 4 Brazilian states (Table 1). All leaf samples were examined under a microscope to evaluate uredinium and urediniospore structures that characterize P. melanocephala (Virtudazo et al, 2001a;Dixon et al, 2010).…”

Section: Sampling and Identification Of Rust Isolatesmentioning

confidence: 99%

Genetic diversity among Puccinia melanocephala isolates from Brazil assessed using simple sequence repeat markers

Peixoto-Junior¹,

Creste²,

Landell³

et al. 2014

Genet. Mol. Res.

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ABSTRACT. Brown rust (causal agent Puccinia melanocephala) is an important sugarcane disease that is responsible for large losses in yield worldwide. Despite its importance, little is known regarding the genetic diversity of this pathogen in the main Brazilian sugarcane cultivation areas. In this study, we characterized the genetic diversity of 34 P. melanocephala isolates from 4 Brazilian states using loci identified from an enriched simple sequence repeat (SSR) library. The aggressiveness of 3 isolates from major sugarcane cultivation areas was evaluated by inoculating an intermediately resistant and a susceptible cultivar. From the enriched library, 16 SSR-specific primers were developed, which produced scorable alleles. Of these, 4 loci were polymorphic and 12 were monomorphic for all isolates evaluated. The molecular Genetic diversity among Puccinia melanocephala isolates characterization of the 34 isolates of P. melanocephala conducted using 16 SSR loci revealed the existence of low genetic variability among the isolates. The average estimated genetic distance was 0.12. Phenetic analysis based on Nei's genetic distance clustered the isolates into 2 major groups. Groups I and II included 18 and 14 isolates, respectively, and both groups contained isolates from all 4 geographic regions studied. Two isolates did not cluster with these groups. It was not possible to obtain clusters according to location or state of origin. Analysis of disease severity data revealed that the isolates did not show significant differences in aggressiveness between regions.

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Phylogenetic relationships of sugarcane rust fungi

Cited by 61 publications

References 24 publications

One stop shop: backbones trees for important phytopathogenic genera: I (2014)

One stop shop: backbones trees for important phytopathogenic genera: I (2014)

Screening for Sugarcane Brown Rust in the First Clonal Stage of the Canal Point Sugarcane Breeding Program

Genetic diversity among Puccinia melanocephala isolates from Brazil assessed using simple sequence repeat markers

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