Evaluation of the Resistance of <i>Malus</i> Germplasm to Bot Canker Caused by <i>Botryosphaeria dothidea</i>

Liu, Hai Tao; Zhang, Yu Jing; Li, Chun Min; Wang, Yi; Liu, Guo Jian; Chang, Rui Feng; Xu, Xuefeng; Han, Zhen; Zhang, Xin Zhong

doi:10.1111/j.1439-0434.2011.01794.x

Cited by 7 publications

(9 citation statements)

References 2 publications

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“…However, both Jonathan and Golden Delicious were moderately resistant to bot canker (Liu et al. ). A hybrid cross was performed in 2002, and the seedlings were planted in 2003 at the Changli Institute of Pomology, Hebei (119°09′E, 39°41′N).…”

Section: Methodsmentioning

confidence: 99%

“…Jonathan was highly resistant, and Golden Delicious was susceptible to all the five FRR isolates (Zhang et al 2010). However, both Jonathan and Golden Delicious were moderately resistant to bot canker (Liu et al 2011b). A hybrid cross was performed in 2002, and the seedlings were planted in 2003 at the Changli Institute of Pomology, Hebei (119°09 0 E, 39°41 0 N).…”

Section: Plant Materialsmentioning

confidence: 99%

“…The pathogenicity of isolate Lw048 to the branches of apple cultivars Jiguan and Pingding Crab was considerably greater than that of isolate Ls1 (Liu et al. ). Similarly, Lw048 was highly virulent to the fruit of Allington and Winter Banana, whereas isolate Zz26 was almost avirulent to the same two cultivars (Zhang et al.…”

Section: Introductionmentioning

confidence: 99%

“…Nonwounded peach (Prunus persica L.) tree stems inoculated with an isolate of B. dothidea from apple were almost symptomless, whereas when they were inoculated with an isolate of the same fungus from peach, 69% trees died or became severely diseased (Pusey 1993). Inoculation with mycelium plugs of B. dothidea has resulted in warts or lesions on both wounded and unwounded fruits and shoots of apple and pear, than that of isolate Ls1 (Liu et al 2011b). Similarly, Lw048 was highly virulent to the fruit of Allington and Winter Banana, whereas isolate Zz26 was almost avirulent to the same two cultivars (Zhang et al 2010).…”

Section: Introductionmentioning

confidence: 99%

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Genetic Mapping Reveals Sophisticated Responses of Malus domestica to Botryosphaeria dothidea Isolates

Cui

Han

et al. 2014

Journal of Phytopathology

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Infection by the globally distributed pathogenic fungus Botryosphaeria dothidea (Moug.) Ces. et de Not. causes bot canker on the stems, branches and limbs or causes fruit ring rot (FRR) on the fruit in apple. To investigate the relationship between resistance to bot canker and FRR and among resistance mechanisms in response to different pathogen isolates, 34 major gene loci and six quantitative trait loci (QTLs) for bot canker and FRR resistance/susceptibility were genetically mapped on Malus genome using an F1 hybrid population (Jonathan × Golden Delicious) in 2008 and 2009. None of the QTLs for bot canker and FRR overlapped with the region of the major gene loci. Some of the FRR‐ and bot canker‐associated loci either coincided or overlapped, and some were independent, suggesting that the responses of different organs to the pathogen would be correlated but might deviate from each other. Some major gene loci and QTLs associated with different pathogen isolates of bot canker or, FRR were mapped to different regions of the genome. The results indicated that not only did the resistance mechanisms differ between bot canker and FRR but also that genetic differentiation occurred among pathogen isolates.

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Section: Methodsmentioning

confidence: 99%

Section: Plant Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Genetic Mapping Reveals Sophisticated Responses of Malus domestica to Botryosphaeria dothidea Isolates

Cui

Han

et al. 2014

Journal of Phytopathology

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“…Different results of inheritance analysis may also be caused by different resistance evaluation approaches. Incidence and severity are both important parameters when evaluating the disease resistance in apple (Liu et al. 2011).…”

Section: Discussionmentioning

confidence: 99%

Selection and Evaluation of Interspecific Hybrids of Pear Highly Resistant to Venturia nashicola

Zhang

Yue

et al. 2012

Journal of Phytopathology

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Pear scab (Venturia nashicola Tanaka et Yamamoto or Venturia pirina Aderhold) is one of the most important diseases of pears. Two hybrids, 03‐04‐034 and 03‐08‐080, highly resistant to pear scab were selected from interspecific reciprocal crosses of Pyrus × bretschneideri cv. Yali and Pyrus × ussuriensis cv. Jingbaili. The content of salicylic acid (SA) and polyphenols in the leaves of 03‐04‐034 and a highly susceptible hybrid individual were tested by high‐performance liquid chromatography. The two scab‐resistant individuals 03‐04‐034 and 03‐08‐080 were backcrossed with both of their parents, and the progenies were used for inheritance analysis of the resistance trait. The results indicated that diseased and non‐diseased progenies segregated qualitatively and that diseased was dominant over non‐diseased. The ratio of diseased/non‐diseased progenies in all of the backcross populations was not significantly different from 1 : 15 indicating the segregation of four major gene loci was involved in the variation of resistance in these hybrid populations. When susceptible subpopulations from the two crosses were assessed for the severity of infection as measured by the ratio of lesion area to total leaf area, resistance was identified as a quantitative trait. Endogenous SA content in the leaves was extensively induced as early as 3 h after inoculation of the highly resistant individual 03‐04‐034, but no significant change in leaf SA content was found in the highly susceptible individual 03‐19‐136. Polyphenolic compounds, such as phlorhizin, catechol, quercetin and rutin, began to accumulate in leaves of 03‐04‐034 several hours earlier than that 03‐19‐136. The lignin content increased 45 h after inoculation in the resistant individual 03‐04‐034, but not in the susceptible individual 03‐19‐136. These observations indicated that the genetic resistance to pear scab of this interspecific population was correlated to SA induction, earlier polyphenol accumulation and the subsequent lignification of leaf tissue.

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Development of high-density interspecific genetic maps for the identification of QTLs conferring resistance to Valsa ceratosperma in apple

et al. 2016

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Evaluation of the Resistance of Malus Germplasm to Bot Canker Caused by Botryosphaeria dothidea

Cited by 7 publications

References 2 publications

Genetic Mapping Reveals Sophisticated Responses of Malus domestica to Botryosphaeria dothidea Isolates

Genetic Mapping Reveals Sophisticated Responses of Malus domestica to Botryosphaeria dothidea Isolates

Selection and Evaluation of Interspecific Hybrids of Pear Highly Resistant to Venturia nashicola

Development of high-density interspecific genetic maps for the identification of QTLs conferring resistance to Valsa ceratosperma in apple

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