scholarly journals Селекция лука репчатого с устойчивостью к пероноспорозу

2019 ◽  
Author(s):  
G.F. Monakhos ◽  
S.G. Monakhos ◽  
R.R. Alizhanova
Keyword(s):  
Disease Resistance ◽  
Downy Mildew ◽  
Resistance Gene ◽  
Inbred Lines ◽  
F1 Hybrids ◽  
Downy Mildew Resistance ◽  
European Origin ◽  
Molecular Genotyping ◽  
Breeding Station ◽  
Selection Of

На Селекционной станции имени Н.Н. Тимофеева гибридизацией с донором устойчивости к пероноспорозу F1 Santero, беккроссом, инбридингом и отбором на инфекционном фоне с помощью молекулярного маркера DMR1 создано 15 линий лука репчатого гомозиготного по гену устойчивости Pd1. Оценка в однолетней культуре позволила выделить линии с массой луковиц 100120 г с высокой сохранностью, которые могут быть использованы в селекции F1 гибридов в качестве отцовских компонентов.Fifteen homozygous for Pd1 downy mildew resistance gene onion lines were developed by hybridization followed backcrossing F1 Santero of downy mildew resistant onion accession of European origin and a collection of onion inbred lines from LC Breeding station after N.N. Timofeev. The resistant to downy mildew, caused by Peronospora destructor (Berk.), plants were selected in segregated populations based on disease resistance test and molecular genotyping using DMR1marker. The lines with a mass of bulbs 100 120 g with high preservation, which can be used in the selection of F1 hybrids as paternal components.

scholarly journals The Arabidopsis Downy Mildew Resistance Gene, RPP13-Nd, Functions Independently of NDR1 and EDS1 and Does Not Require the Accumulation of Salicylic Acid

2001 ◽  
Vol 14 (3) ◽  
pp. 416-421 ◽  
Author(s):  
Peter D. Bittner-Eddy ◽  
Jim L. Beynon
Keyword(s):  
Salicylic Acid ◽  
Disease Resistance ◽  
Downy Mildew ◽  
Resistance Gene ◽  
Transgenic Arabidopsis ◽  
Downy Mildew Resistance ◽  
R Gene ◽  
Peronospora Parasitica ◽  
Resistance Mutations ◽  
Mutant Lines

RPP13-Nd-mediated resistance prevents parasitism by five isolates of Peronospora parasitica (At) in a transgenic Arabidopsis. Columbia background. We tested the effect of a number of known disease resistance mutations on the RPP13-Nd function and found that resistance remained unaltered in plants carrying mutations in either EDS1 or NDR1 and in double ndr1-1/eds1-2 mutant lines. Furthermore, we found that pbs2, pad4-1, npr1-1, and rps5-1, which compromise resistance to a number of P. parasitica (At) isolates, had no affect on RPP13-Nd function. In addition, RPP13-Nd-mediated resistance remained unchanged in a background of salicylic acid depletion (nahG). We conclude that RPP13-Nd is the first Arabidopsis R gene product reported to act via a novel signaling pathway that is independent of salicylic acid-mediated responses and is completely independent of NDR1 and EDS1.

scholarly journals Identification of Downy Mildew Resistance Loci in Sunflower Germplasm

2017 ◽  
Vol 9 (4) ◽  
pp. 515-519 ◽  
Author(s):  
Maryam MIRZAHOSEIN-TABRIZI
Keyword(s):  
Helianthus Annuus ◽  
Downy Mildew ◽  
Genetic Map ◽  
Inbred Line ◽  
Resistance Genes ◽  
Positive Control ◽  
Inbred Lines ◽  
Downy Mildew Resistance ◽  
Mildew Resistance ◽  
Selection Of

Downy mildew caused by Plasmopara halstedii is one of the most economically important fungal diseases on sunflower (Helianthus annuus). To date, several downy mildew resistance genes called Pl genes have been reported on sunflower genetic map. Previous findings have confirmed that Iranian sunflower germplasms are harbouring Pl resistance genes that may be used to control downy mildew. In the current study, there were investigated the Pl5 and Pl16 downy mildew resistance genes in 51 inbred lines of Iranian sunflower, using PCR-based method. Fifteen differential lines carrying Pl5 and Pl16 downy mildew resistance genes were used as positive control. DNAs from 51 sunflower inbred lines were used in PCR reactions using primer pair RS1008 and Hap3 previously reported to serve as tightly linked to Pl16 and P5 loci, respectively. The PCR results confirmed the presence of two Pl16 and Pl5 bands with the size of about 280 and 1,580 bp, respectively, in differential lines. The results indicated that 1 inbred line out of 51 was found to carry Pl5 gene and 10 lines were found to carry Pl16 gene across the studied Iranian sunflower genotypes. These findings may be used to assist breeders for conservation and selection of downy mildew resistant sunflower genotypes.

scholarly journals Historical Introgression of the Downy Mildew Resistance Gene Rpv12 from the Asian Species Vitis amurensis into Grapevine Varieties

PLoS ONE ◽  
2013 ◽  
Vol 8 (4) ◽  
pp. e61228 ◽  
Author(s):  
Silvia Venuti ◽  
Dario Copetti ◽  
Serena Foria ◽  
Luigi Falginella ◽  
Sarolta Hoffmann ◽  
...  
Keyword(s):  
Downy Mildew ◽  
Resistance Gene ◽  
Vitis Amurensis ◽  
Downy Mildew Resistance ◽  
Mildew Resistance ◽  
Asian Species

Detection and integration of gene mapping of downy mildew resistance in maize inbred lines though linkage and association

Euphytica ◽  
2012 ◽  
Vol 187 (3) ◽  
pp. 369-379 ◽  
Author(s):  
Chalermpol Phumichai ◽  
Julapark Chunwongse ◽  
Sansern Jampatong ◽  
Pichet Grudloyma ◽  
Taweesak Pulam ◽  
...  
Keyword(s):  
Gene Mapping ◽  
Downy Mildew ◽  
Inbred Lines ◽  
Downy Mildew Resistance ◽  
Mildew Resistance ◽  
Maize Inbred Lines

CYCLOPHILIN: A DOWNY MILDEW RESISTANCE GENE CANDIDATE IN GRAPEVINE

2014 ◽  
pp. 371-377 ◽  
Author(s):  
A. Figueiredo ◽  
F. Monteiro ◽  
A.M. Fortes ◽  
M.S. Pais ◽  
M. Rex ◽  
...  
Keyword(s):  
Downy Mildew ◽  
Resistance Gene ◽  
Cyclophilin A ◽  
Downy Mildew Resistance ◽  
Mildew Resistance ◽  
Resistance Gene Candidate

scholarly journals The Arabidopsis downy mildew resistance gene RPP5 shares similarity to the toll and interleukin-1 receptors with N and L6.

1997 ◽  
Vol 9 (6) ◽  
pp. 879-894 ◽  
Author(s):  
J E Parker ◽  
M J Coleman ◽  
V Szabò ◽  
L N Frost ◽  
R Schmidt ◽  
...  
Keyword(s):  
Downy Mildew ◽  
Resistance Gene ◽  
Interleukin 1 ◽  
Downy Mildew Resistance ◽  
Mildew Resistance
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