Levels of fire blight (Erwinia amylovora) susceptibility of native apple, pear and quince germplasm from Lake Van Basin, Turkey

Özrenk, Koray; Balta, Fikri; Çelik, Ferit

doi:10.1007/s10658-011-9866-3

Cited by 24 publications

(16 citation statements)

References 29 publications

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“…The choice of shoots for inoculation is also important. Fully vigorous shoots are more susceptible to disease, while shoots that grow weakly or those that have already completed growth are more resistant (Hepaksoy et al, 1999;Ozrenk et al, 2012). Harshman et al (2017) also noticed that the susceptibility of shoots to fire blight depends on their vigor and physiological condition.…”

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confidence: 99%

Phenotypic and marker-assisted characterization of new apple genotypes with high resistance to fire blight

et al. 2021

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In the period 2016–2018 the susceptibility to fire blight of seven apple genotypes, including four recently bred was assessed. The studies showed that two of the genotypes (J-2003-05 and ‘Early Szampion’) are highly resistant to the disease. The indicator of assessment was evaluated by the size of necrotized part of terminal shoots after their inoculation with strain Ea659 of Erwinia amylovora. The analysis of disease incidence on individual shoots of both genotypes showed no symptoms on 92% and 100% of shoots inoculated in 2016, 83.8 and 77.0% of shoots in 2017, and 87.8 and 77.3% of shoots inoculated in 2018, respectively. Molecular tests based on 16 genetic markers revealed that genotype J-2003-05 possesses 10 resistance alleles (covering the region of interest from LG 3, 5, 7, 10 and 12). This genotype is derived from the cross between ‘Melfree’ and ‘Sawa’ and produces very large dark-red tasty fruits. Genotype ‘Early Szampion’ representing the selected hybrid from the cross of ‘Gold Milenium’ and ‘Šampion’, producing large, bright red, attractive fruits, was found to possess 10 resistance alleles (covering the region of interest from LG 3, 7, 10 and 12), Both genotypes have the prospect of being used in breeding programs and commercial planting.

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Phenotypic and marker-assisted characterization of new apple genotypes with high resistance to fire blight

et al. 2021

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“…Among the hybrids, 1- 16-130, 1-17-20, 2-12-47, 2-15-33, 3-36-87, 2-12-43 and 2-15-93 showed very low susceptibility to fire blight, the most destructive disease for the pome fruit species, while the hybrid 2-15-42 showed low susceptibility, and the remaining hybrids showed high susceptibility (Table 3). It has been reported that cultivated pear varieties were highly susceptible to fire blight disease and suffer from great economic losses due to the disease (Hepaksoy et al, 1998;Ozrenk et al, 2012;Gaaliche et al, 2018). Therefore, breeding studies are carried out for the development of pear hybrids that are resistant to fire blight disease and have high fruit quality parameters (Evrenosoglu et al, 2010;Hunter, 2016;Evrenosoğlu and Mertoğlu, 2018).…”

Section: Resultsmentioning

confidence: 99%

Evaluation of Fall Pear Variety Candidates Obtained by Hybridization in Terms of Fire Blight Disease Resistance, Pomological and Commercial Values

Mertoğlu¹,

Evrenosoğlu²,

Yeşilbaş³

et al. 2020

Ege Üniversitesi Ziraat Fakültesi Dergisi

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Objective: In this research, evaluations of F1 fall pear hybrids, that obtained from different cross combinations, were made to contribute to our country' s agriculture and gene pool.Material and Methods: 11 hybrids investigated in this research were obtained from the cross combinations that 'Magness' , 'Kiefer' , 'Williams' and 'Santa Maria' cultivars were maternal and, 'Güz' , 'Santa Maria' and 'Kiefer' cultivars were used as pollinator parents. Susceptibilities of those hybrids to fire blight disease, pomological and biochemical characteristics were determinated. Besides, sensory parameters were added to the data attained by the measurements, and promising hybrids were detected through the modified weighted ranking method.Results: Fruit width, fruit length, shape index, fruit weight, fruit firmness, soluble solid content, pH, titratable acidity, vitamin C and antioxidant activity characteristics were varied between 53.22 -84.25 mm, 52.91 -105.01 mm, 0.95 -1.62, 86.51 -317.70 g, 3.32 -8.41 kg/cm2, %8.77 -16.53, 3.52 -4.73, %0.14 -0.59, 0.53 -3.17 mg.L-1 and %26.43 -%75.09, respectively. Eight hybrids were evaluated as promising fall cultivars through the modified weighted ranking method.Conclusions: Due to the lack of a definite solution against fire blight, the chemicals used are harmful to human health and organic cultivation is becoming more widespread, the pears with high fruit quality parameters and disease resistant hybrids will come to the fore in the near future, it is thought that the hybrids (2-12-43, 2-15-93, 2-12-47, 1-17-20, 3-36-87, 2-33-32, 2-15-33 and 1-16-130) transferred to the forward observation plot will contribute to pear cultivation by registering in the following period. ÖZAmaç: Bu çalışmada, farklı melezleme kombinasyonları sonucu elde edilen güzlük F1 armut melezlerinin, ülke tarımına ve genetik havuza katkı sağlaması amaçları doğrultusunda, değerlendirmeleri yapılmıştır.

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“…In previous studies, it was stated that 'Kiefer' variety was resistant to blossom blight while moderately resistant to shoot blight; 'Conference' was moderately resistant to shoot blight but very susceptible to blossom blight; 'Santa Maria' and 'Williams' were susceptible to shoot blight and moderately susceptible to blossom blight (SOBICZEWSKI et al, 1997). As a result of similar researches, pears 'Williams' and 'Santa Maria' were determined to be susceptible to the disease, whereas 'Ankara', 'Mustafa Bey', 'Conference', and 'Kaiser Alexandre' were moderately susceptible, and 'Limon', 'Kiefer', and 'Magness' had low susceptibility (VAN DER ZWET and BEER, 1992; AYSAN et al, 1999;HEVESI et al, 2004;SESTRAS et al, 2008;OZRENK et al, 2012). As it can be understood from former studies in which the susceptibility of parental varieties to fire blight was investigated, s 'Ankara', 'Conference', 'Kaiser Alexandre', 'Kiefer' and 'Magness' were found to be relatively more resistant to the disease while 'Akca', 'Santa Maria' and 'Williams' were found to be susceptible.…”

Section: Discussionmentioning

confidence: 98%

“…Hybridization is generally used in breeding studies, due to the polygenic control of resistance to fire blight and complexity of its mechanism (BOKSZCZANIN et al, 2012). For this reason, studies have been carried out in many countries primarily on determining the susceptibility level of genetic resources for parent selection (HEVESI et al, 2004;HONTY et al, 2006;SESTRAS et al, 2008;OZRENK et al, 2012;KELLERHALS et al, 2012;TOTH et al, 2013;SOBICZEWSKI et al, 2015;CALIS et al, 2017;HARSHMAN et al, 2017;ŞAHIN et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Susceptibility, heterosis and heterobeltiosis evaluations for fire blight resistance in pear

Mertoğlu¹,

Evrenosoğlu²,

Nuri³

2020

Genetika

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Fire blight is a devastating disease of Pomaceous trees that can cause death of the plants and leading to substantial crop losses. Controlled hybridization is widely used in breeding programs, due to the polygenic nature of fire blight resistance and the complexity of its mechanism. Right choice of parents appears to be the most significant criterion for obtaining genotypes that have desired characteristics. In this study 13 parental pear cultivars and 9749 F1 pear hybrids that were obtained from 36 different hybridization combinations were evaluated for fire blight resistance. Manifestation of heterosis and heterobeltiosis were also determined. As results of the study, 'Magness' is foremost as the most resistant variety, and followed by 'Ankara', 'Moonglow', 'Kiefer' and 'Kaiser Alexandre', respectively. 'Conference', 'Williams' and 'Santa Maria' were found susceptible to disease, while 'Guz', 'Limon', 'Bursa', 'Akca' and 'Tas' were highly susceptible to disease. Maternal parent was more effective for the transmission of fire blight resistance, when compared to pollinator parent. For this reason, it is suggested that disease-resistant varieties should be used as maternal parent. Heterosis was detected in 12 hybridization combinations. However, heterobeltiosis-focused approach was more effective for resistance breeding. For fire blight resistance, 'Magness  Kaiser Alexandre' and 'Magness  Kiefer' hybridization combinations that heterobeltiosis was determined are recommended.

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Levels of fire blight (Erwinia amylovora) susceptibility of native apple, pear and quince germplasm from Lake Van Basin, Turkey

Cited by 24 publications

References 29 publications

Phenotypic and marker-assisted characterization of new apple genotypes with high resistance to fire blight

Phenotypic and marker-assisted characterization of new apple genotypes with high resistance to fire blight

Evaluation of Fall Pear Variety Candidates Obtained by Hybridization in Terms of Fire Blight Disease Resistance, Pomological and Commercial Values

Susceptibility, heterosis and heterobeltiosis evaluations for fire blight resistance in pear

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