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Article
Whole-genome sequencing enables molecular dissection and candidate gene identification of the rust resistance gene R12 in sunflower (Helianthus annuus L.)
We finely mapped the rust resistance gene R12 to a 0.1248-cM region, identified a potential R12 candidate gene in the XRQ reference genome, and developed three diagnostic SNP markers for R12.
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Article
Introgression and targeting of the Pl37 and Pl38 genes for downy mildew resistance from wild Helianthus annuus and H. praecox into cultivated sunflower (Helianthus annuus L.)
Two new downy mildew resistance genes, Pl37 and Pl38, were introgressed from wild sunflower species into cultivated sunflower and mapped to sunflower chromosomes 4 and 2, respectively
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Article
Characterization and map** of a downy mildew resistance gene, Pl36, in sunflower (Helianthus annuus L.)
Downy mildew (DM) is one of the most serious diseases in sunflower-growing regions worldwide, often significantly reducing sunflower yields. The causal agent of sunflower DM, the oomycete pathogen Plasmopara hals...
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Article
Discovery and map** of two new rust resistance genes, R17 and R18, in sunflower using genoty** by sequencing
Discovery of two rust resistance genes, R17 and R18, from the sunflower lines introduced from South Africa and genetic map** of them to sunflower chromosome 13.
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Article
Diversification of the downy mildew resistance gene pool by introgression of a new gene, Pl35, from wild Helianthus argophyllus into oilseed and confection sunflowers (Helianthus annuus L.)
We have mapped a new downy mildew resistance gene, Pl35, derived from wild Helianthus argophyllus to sunflower linkage group 1. New germplasms incorporating the Pl35 gene were developed for both oilseed and confe...
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Article
Molecular map** of the downy mildew and rust resistance genes in a sunflower germplasm line TX16R
The sunflower germplasm line TX16R is resistant to Plasmopara halstedii (causal agent of sunflower downy mildew) and Puccinia helianthi (causal agent of sunflower rust), which are two destructive foliar diseases ...
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Article
High-throughput genoty**-by-sequencing facilitates molecular tagging of a novel rust resistance gene, R 15 , in sunflower (Helianthus annuus L.)
A novel rust resistance gene, R 15 , derived from the cultivated sunflower HA-R8 was assigned to linkage group 8 of the sunflower genome using a genoty**-by-sequencing appr...
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Article
Genoty**-by-sequencing targeting of a novel downy mildew resistance gene Pl 20 from wild Helianthus argophyllus for sunflower (Helianthus annuus L.)
Genoty**-by-sequencing revealed a new downy mildew resistance gene, Pl 20 , from wild ...
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Article
Development and dissection of diagnostic SNP markers for the downy mildew resistance genes Pl Arg and Pl 8 and maker-assisted gene pyramiding in sunflower (Helianthus annuus L.)
Diagnostic DNA markers are an invaluable resource in breeding programs for successful introgression and pyramiding of disease resistance genes. Resistance to downy mildew (DM) disease in sunflower is mediated by
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Article
An innovative SNP genoty** method adapting to multiple platforms and throughputs
An innovative genoty** method designated as semi-thermal asymmetric reverse PCR (STARP) was developed for genoty** individual SNPs with improved accuracy, flexible throughputs, low operatio...
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Article
Discovery and introgression of the wild sunflower-derived novel downy mildew resistance gene Pl 19 in confection sunflower (Helianthus annuus L.)
A new downy mildew resistance gene, Pl 19 , was identified from wild Helianthus a...
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Article
Genetics and map** of a novel downy mildew resistance gene, Pl 18 , introgressed from wild Helianthus argophyllus into cultivated sunflower (Helianthus annuus L.)
A novel downy mildew resistance gene, Pl 18 , was introgressed from wild Helianth...
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Article
Map saturation and SNP marker development for the rust resistance genes (R 4 , R 5 , R 13a , and R 13b ) in sunflower (Helianthus annuus L.)
Sunflower rust, which is incited by the fungus Puccinia helianthi Schwein., is the most common disease in Australia, Argentina, South Africa, and North America. Three independent genes, R
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Article
Pl 17 is a novel gene independent of known downy mildew resistance genes in the cultivated sunflower (Helianthus annuus L.)
Pl 17 , a novel downy mildew resistance gene independent of known downy mildew resistance genes in sunflowers, was ge...
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Article
Relocation of a rust resistance gene R 2 and its marker-assisted gene pyramiding in confection sunflower (Helianthus annuus L.)
The rust resistance gene R 2 was reassigned to linkage group 14 of the sunflower genome. DNA mark...
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Article
Sequence organization and evolutionary dynamics of Brachypodium-specific centromere retrotransposons
Brachypodium distachyon is a wild annual grass belonging to the Pooideae, more closely related to wheat, barley, and forage grasses than rice and maize. As an experimental model, the completed ge...
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Article
Genetic map** of rust resistance genes in confection sunflower line HA-R6 and oilseed line RHA 397
Few widely effective resistance sources to sunflower rust, incited by Puccinia helianthi Schwein., have been identified in confection sunflower (Helianthus annuus L.). The USDA inbred line HA-R6 is one of the few...
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Article
Molecular tagging of a novel rust resistance gene R 12 in sunflower (Helianthus annuus L.)
Sunflower production in North America has recently suffered economic losses in yield and seed quality from sunflower rust (Puccinia helianthi Schwein.) because of the increasing incidence and lack of resistance t...
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Article
Genetics and map** of the R 11 gene conferring resistance to recently emerged rust races, tightly linked to male fertility restoration, in sunflower (Helianthus annuus L.)
Sunflower oil is one of the major sources of edible oil. As the second largest hybrid crop in the world, hybrid sunflowers are developed by using the PET1 cytoplasmic male sterility system that contributes to ...
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Article
Chromosome location, DNA markers and rust resistance of the sunflower gene R 5
Sunflower rust, caused by the fungus Puccinia helianthi Schwein., was not a serious problem for many decades because of successful deployment of effective resistance genes in commercial sunflower (Helianthus annu...