Epidermal cell response to rust hyphae and the resistance mode of tropical maize to southern corn rust (Puccinia polysora underwood)

AbstractSouthern corn rust (SCR) caused by Puccinia polysora Underw is one of the most devastating maize diseases, resulting in substantial yield losses worldwide. The pathogen is an obligate biotrophic parasite that is difficult to culture on artificial media. In recent years, the disease has become prevalent—both globally and in China—and increasing difficult to control because of its wide distribution, long-distance migration, multiple physiological races and fast evolution, all of which have contributed to a considerable increase in the risks of associated epidemics. In this review, we summarize the current knowledge of P. polysora, with emphasis on its global distribution (particularly in China), life and disease cycle, population genetics, migration, physiological races, resistance genes in maize and management. Understanding the underlying factors and processes in SCR epidemics should facilitate management of the disease and breeding for resistant maize varieties.

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022 Crosstalk between vitiligo skin T-cell secretome and epidermal cell response

Journal of Investigative Dermatology ◽

10.1016/j.jid.2019.07.025 ◽

2019 ◽

Vol 139 (9) ◽

pp. S218

Author(s):

C. Martins ◽

C. Drullion ◽

L. Migayron ◽

C. Jacquemin ◽

F. Lucchese ◽

...

Keyword(s):

T Cell ◽

Epidermal Cell ◽

Cell Response

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A genome‐wide association study for partial resistance to southern corn rust in tropical maize

Plant Breeding ◽

10.1111/pbr.12718 ◽

2019 ◽

Vol 138 (6) ◽

pp. 770-780 ◽

Cited By ~ 4

Author(s):

Lucas Rafael Souza Camacho ◽

Marlon Mathias Dacal Coan ◽

Carlos Alberto Scapim ◽

Ronald José Barth Pinto ◽

Dauri José Tessmann ◽

...

Keyword(s):

Association Study ◽

Partial Resistance ◽

Genome Wide Association Study ◽

Genome Wide Association ◽

Tropical Maize ◽

Southern Corn Rust ◽

Genome Wide ◽

A Genome

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De novo transcriptome assembly, polymorphic SSR markers development and population genetics analyses for southern corn rust (Puccinia polysora)

Scientific Reports ◽

10.1038/s41598-021-97556-1 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Qiuyu Sun ◽

Jie Liu ◽

Keyu Zhang ◽

Chong Huang ◽

Leifu Li ◽

...

Keyword(s):

Ssr Markers ◽

De Novo ◽

Average Length ◽

Transcriptome Assembly ◽

Molecular Genetic ◽

Genotypic Diversity ◽

Molecular Genetic Analysis ◽

Significant Similarity ◽

Southern Corn Rust ◽

Puccinia Polysora

AbstractSouthern corn rust is a destructive maize disease caused by Puccinia polysora Underw that can lead to severe yield losses. However, genomic information and microsatellite markers are currently unavailable for this disease. In this study, we generated a total of 27,295,216 high-quality cDNA sequence reads using Illumina sequencing technology. These reads were assembled into 17,496 unigenes with an average length of 1015 bp. The functional annotation indicated that 8113 (46.37%), 1933 (11.04%) and 5516 (31.52%) unigenes showed significant similarity to known proteins in the NCBI Nr, Nt and Swiss-Prot databases, respectively. In addition, 2921 (16.70%) unigenes were assigned to KEGG database categories; 4218 (24.11%), to KOG database categories; and 6,603 (37.74%), to GO database categories. Furthermore, we identified 8,798 potential SSRs among 6653 unigenes. A total of 9 polymorphic SSR markers were developed to evaluate the genetic diversity and population structure of 96 isolates collected from Guangdong Province in China. Clonal reproduction of P. polysora in Guangdong was dominant. The YJ (Yangjiang) population had the highest genotypic diversity and the greatest number of the multilocus genotypes, followed by the HY (Heyuan), HZ (Huizhou) and XY (Xinyi) populations. These results provide valuable information for the molecular genetic analysis of P. polysora and related species.

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