QTLS Associated With Powdery Mildew Resistance Responses in Roses

Leus, Leen; Moghaddam, Hossein Hosseini; Huylenbroeck, Johan Van; Riek, Jan De

doi:10.17660/actahortic.2015.1064.34

Cited by 4 publications

(2 citation statements)

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“…Yan et al (2006) observed relatively high broad-sense heritability (57-62 %) for the PM resistance in tetraploid rose genotype P540 and P867. Hosseini Moghaddam et al (2012) and Leus et al (2015) detected nine QTL for the PM resistance in cultivar 'Yesterday' and R. wichurana.…”

Section: Powdery Mildew [Pm;mentioning

confidence: 99%

Breeding for Disease Resistance in Florists’ Crops

Deng¹

2016

Handbook of Plant Disease Management

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Utilization of disease-resistant cultivars is considered as the most cost-effective and environmentally sound approach to managing plant diseases including diseases of florists' crops. Improving disease resistance has been a main objective in a number of florists' crop breeding programs. The commonly used breeding approach has been classic hybridization followed by progeny screening for resistance to targeted diseases. Breeding efforts over the last several decades have resulted in the development and release of numerous cultivars with resistance to major diseases in anthurium, caladium, carnation, chrysanthemum, gerbera, gladiolus, hydrangea, lily, narcissus, rose, tulip, and other florists'

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Section: Powdery Mildew [Pm;mentioning

confidence: 99%

Breeding for Disease Resistance in Florists’ Crops

Deng¹

2016

Handbook of Plant Disease Management

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“…is reported to be quantitatively inherited with a low to moderate narrow-sense (h 2 = 0.51) and moderate to high broad-sense heritabilities (H 2 = 0.72) (Kang et al, 2019), indicating that resistance should be a feasible breeding goal. Thus far, no distinct races of CLS or resistance genes have been identified for CLS, whereas genes, QTLs, and pathogenic races associated with BSD (Soufflet-Freslon et al, 2019;Yan et al, 2019;Lopez Arias et al, 2020a;Lopez Arias et al, 2020b) and powdery mildew (Xu et al, 2005;Linde et al, 2006;Xu et al, 2007;Hosseini Moghaddam et al, 2012;Leus et al, 2015) have been reported.…”

Section: Introductionmentioning

confidence: 99%

Pedigree-based analysis in multi-parental diploid rose populations reveals QTLs for cercospora leaf spot disease resistance

et al. 2023

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Cercospora leaf spot (CLS) (Cercospora rosicola) is a major fungal disease of roses (Rosa sp.) in the southeastern U.S. Developing CLS-resistant cultivars offers a potential solution to reduce pesticide use. Yet, no work has been performed on CLS resistance. This study aimed to identify QTLs and to characterize alleles for resistance to CLS. The study used pedigree-based QTL analysis to dissect the genetic basis of CLS resistance using two multi-parental diploid rose populations (TX2WOB and TX2WSE) evaluated across five years in two Texas locations. A total 38 QTLs were identified across both populations and distributed over all linkage groups. Three QTLs on LG3, LG4, and LG6 were consistently mapped over multiple environments. The LG3 QTL was mapped in a region between 18.9 and 27.8 Mbp on the Rosa chinensis genome assembly. This QTL explained 13 to 25% of phenotypic variance. The LG4 QTL detected in the TX2WOB population spanned a 35.2 to 39.7 Mbp region with phenotypic variance explained (PVE) up to 48%. The LG6 QTL detected in the TX2WSE population was localized to 17.9 to 33.6 Mbp interval with PVE up to 36%. Also, this study found multiple degrees of favorable allele effects (q-allele) associated with decreasing CLS at major loci. Ancestors ‘OB’, ‘Violette’, and PP-M4-4 were sources of resistance q-alleles. These results will aid breeders in parental selection to develop CLS-resistant rose cultivars. Ultimately, high throughput DNA tests that target major loci for CLS could be developed for routine use in a DNA-informed breeding program.

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Breeding for Disease Resistance in Florists’ Crops

Deng

2018

Handbook of Plant Disease Management

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QTLS Associated With Powdery Mildew Resistance Responses in Roses

Cited by 4 publications

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Breeding for Disease Resistance in Florists’ Crops

Breeding for Disease Resistance in Florists’ Crops

Pedigree-based analysis in multi-parental diploid rose populations reveals QTLs for cercospora leaf spot disease resistance

Breeding for Disease Resistance in Florists’ Crops

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