Genotypic responses of scab-resistant apple cultivars/selections to two strains of Erwinia amylovora and the inheritance of resistance to fire blight
Genotypic responses of scab-resistant apple cultivars/selections to two strains of Erwinia amylovora and the inheritance of resistance to fire blight
复制标题
抗赤霉病苹果品种/选种对两株梨火疫病菌的基因型反应及抗火疫病的遗传
DOI：
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发表时间：
1988
期刊：
影响因子：
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通讯作者：
D. Hattermann
中科院分区：
文献类型：
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作者：
S. Korban;S. M. Ries;M. Klopmeyer;J. Morrisey;D. Hattermann
总结
在温室条件下，采用茎尖接种法测定了苹果品种和选择系对梨火疫病菌（Erwinia amylovora）的抗性。CV. Liberty对菌株Ea 273具有抗性，而Priscilla、Delicious和Coop 17对菌株Apple # 1具有高度抗性。一个显着的基因型×菌株的相互作用，表明一个差异主机×病原体的相互作用。
分离的幼苗来自16个控制杂交后接种火疫病表明，火疫病的抗性是定量控制的证据存在显性加性基因效应。
SUMMARY
Apple cultivars and selections were tested for resistance to two strains of Erwinia amylovora following shoot tip inoculation in the greenhouse. Cv. Liberty was resistant to strain Ea 273, and Priscilla, Delicious and Coop 17 were highly resistant to strain Apple # 1. A significant genotype x strain interaction was obtained suggesting a differential host × pathogen interaction.
Segregation of seedlings derived from 16 controlled crosses after fire blight inoculation indicated that resistance to fire blight is quantitatively controlled with evidence for presence of dominant additive gene effects.