Inheritance of Resistance to Downy Mildew inCucumis meloPI 124112 and Commonality of Resistance Genes with PI 124111F

Plant Disease ◽  
1992 ◽  
Vol 76 (6) ◽  
pp. 615 ◽  
Author(s):  
David Kenigsbuch
Keyword(s):  
Downy Mildew ◽  
Resistance Genes ◽  
Inheritance Of Resistance

scholarly journals Inheritance of Resistance to Downy Mildew Disease in Maize

2018 ◽  
Vol 9 (12) ◽  
pp. 897-900
Author(s):  
S. Elmoghazy ◽  
M. Badr ◽  
G. El- Kot ◽  
Samar Tolba
Keyword(s):  
Downy Mildew ◽  
Inheritance Of Resistance ◽  
Downy Mildew Disease

Colocation of downy mildew (Plasmopara halstedii) resistance genes in sunflower (Helianthus annuus L.)

Euphytica ◽  
1996 ◽  
Vol 91 (2) ◽  
pp. 225-228 ◽  
Author(s):  
Patricia Roeckel-Drevet ◽  
Geneviève Gagne ◽  
Said Mouzeyar ◽  
Laurent Gentzbittel ◽  
Jacqueline Philippon ◽  
...  
Keyword(s):  
Helianthus Annuus ◽  
Downy Mildew ◽  
Resistance Genes ◽  
Plasmopara Halstedii ◽  
Helianthus Annuus L

Inheritance of Resistance to Race 4 of Sunflower Downy Mildew in Wild Sunflower Accessions

Crop Science ◽  
1992 ◽  
Vol 32 (4) ◽  
pp. 949-952 ◽  
Author(s):  
Ahmet S. Tan ◽  
Chao‐Chien Jan ◽  
Thomas J. Gulya
Keyword(s):  
Downy Mildew ◽  
Inheritance Of Resistance ◽  
Wild Sunflower ◽  
Race 4

Validation of Microsatellite Markers of Pl Resistance Genes to Downy Mildew of Sunflower

Helia ◽  
2018 ◽  
Vol 41 (68) ◽  
pp. 73-82
Author(s):  
A. Solodenko
Keyword(s):  
Downy Mildew ◽  
Ssr Markers ◽  
Resistance Genes ◽  
Microsatellite Loci ◽  
Marker Assisted Selection ◽  
Parental Line ◽  
Gene Control ◽  
Genetically Determined ◽  
Ssr Polymorphism ◽  
Simple Sequence

AbstractSimple sequence repeats (SSR) polymorphism of 34 microsatellite loci (LG1, 8 and 13) was studied in lines carrying the downy mildew resistance genes Pl and lines with no Pl. The microsatellite loci ORS328 and ORS781 were selected as markers for genes Pl6 and Pl8 in lines HA 335 and QHP-1, respectively. Markers were identified for gene PlARG in RHA 419 and some accessions of H. argophyllus. The SSR markers ORS509, ORS605, ORS610, ORS1182 and ORS1039 were proven to reliably identify the parental line carrying PlARG gene, control and select the heterozygous F1 hybrids and identify homozygous genotypes in F2 generations. Obtained results indicate the necessity of validation of the markers in various germplasm pools and breeding collections. The SSR markers that are tightly linked to Pl6, Pl8, PlARG would be useful in the sunflower breeding. PlARG homozygous F2 segregants, developed and identified with marker assisted selection in this study, are recommended for further breeding as a new source of genetically determined resistance to downy mildew.

scholarly journals Relationship Between Loci Conferring Downy Mildew and Powdery Mildew Resistance in Melon Assessed by Quantitative Trait Loci Mapping

2005 ◽  
Vol 95 (5) ◽  
pp. 556-565 ◽  
Author(s):  
L. Perchepied ◽  
M. Bardin ◽  
C. Dogimont ◽  
M. Pitrat
Keyword(s):  
Quantitative Trait Loci ◽  
Powdery Mildew ◽  
Downy Mildew ◽  
Resistance Genes ◽  
Quantitative Trait ◽  
Pseudoperonospora Cubensis ◽  
Podosphaera Xanthii ◽  
Resistance Qtl ◽  
Trait Loci ◽  
Artificial Inoculations

Partial resistance to downy mildew (Pseudoperonospora cubensis) and complete resistance to powdery mildew (Podosphaera xanthii races 1, 2, 3, and 5 and Golovinomyces cichoracearum race 1) were studied using a recombinant inbred line population between ‘PI 124112’ (resistant to both diseases) and ‘Védrantais’ (susceptible line). A genetic map of melon was constructed to tag these resistances with DNA markers. Natural and artificial inoculations of Pseudoperonospora cubensis were performed and replicated in several locations. One major quantitative trait loci (QTL), pcXII.1, was consistently detected among the locations and explained between 12 to 38% of the phenotypic variation for Pseudoperonospora cubensis resistance. Eight other Pseudoperonospora cubensis resistance QTL were identified. Artificial inoculations were performed with several strains of four races of Podosphaera xanthii and one race of G. cichoracearum. Two independent major genes, PmV.1 and PmXII.1, were identified and shown to be involved in the simple resistance to powdery mildew. Three digenic epistatic interactions involving four loci were detected for two races of Podosphaera xanthii and one race of G. cichoracearum. Co-localization between PmV.1, resistance genes, and resistance genes homologues was observed. Linkage between the major resistance QTL to Pseudoperonospora cubensis, pcXII.1, and one of the two resistance genes to powdery mildew, PmXII.1, was demonstrated.

scholarly journals Potential of genetic resistance of new table grape hybrids to fungal pathogens

2021 ◽  
Vol 34 ◽  
pp. 02001
Author(s):  
Elena Ilnitskaya ◽  
Marina Makarkina ◽  
Valeriy Petrov
Keyword(s):  
Powdery Mildew ◽  
Downy Mildew ◽  
Resistance Genes ◽  
Dna Markers ◽  
Fungal Pathogens ◽  
Genetic Resistance ◽  
Plasmopara Viticola ◽  
Table Grape ◽  
Table Grapes ◽  
Hybrid Forms

Downy mildew (Plasmopara viticola) and powdery mildew (Erysiphe necator) are the most common and economically significant fungal diseases in vineyards. The task of this work is to study the genotypes of new promising hybrid forms of table grapes for the presence of resistance genes to downy mildew (Rpv10 and Rpv3) and powdery mildew (Ren9) using DNA-markers. The study was carried out on table grape hybrids under the working names Agat dubovskiy, Akelo, Arabella, Artek, Dubovskiy rozovyi, Gamlet, Ispolin, Kishmish dubovskiy, Kurazh, Pestryi, Valensiya and registered variety Liviya. The studied genes were analyzed using markers UDV305 and UDV737 (Rpv3), GF09-46 (Rpv10), CenGen6 (Ren9). The following cultivars were used as reference genotypes: Saperavi severnyi (carries Rpv10 gene) and Regent (Rpv3 and Ren9). It was established that Rpv3 gene is carried by hybrids Kishmish dubovskiy, Agat dubovskiy, Kurazh, Valensiya, Akelo, Gamlet, Dubovskiy rozovyi, Pestryi. Ren9 gene was found in Artek, Agat dubovskiy, Kurazh, Ispolin, Valensiya, Arabella, Gamlet, Dubovskiy rozovyi, Pestryi. The Rpv10 gene was not detected in any of the analyzed grapevine samples. genotypes Agat dubovskiy, Kurazh, Gamlet, Dubovskiy rozovyi, Pestryi, Valensiya carry Rpv3 and Ren9 genes simultaneously. These grapevines have an elegant bunch and large berries that are attractive to consumers.

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