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首页> 外文期刊>International Sugar Journal >Resistance to plant-parasitic nematodes {Pratylenchus zeae and Meloidogyne javanica) in Erianthus and crosses between Erianthus and sugarcane
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Resistance to plant-parasitic nematodes {Pratylenchus zeae and Meloidogyne javanica) in Erianthus and crosses between Erianthus and sugarcane

机译：对Erianthus的植物寄生线虫（Pratylenchus zeae和Meloidogyne javanica）的抗性以及Erianthus和甘蔗之间的杂交

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摘要

This study showed that clones of Erianthus arundinaceus and clones derived from crosses between Erianthus and sugarcane have useful resistance to root-knot nematode (Meloidogyne javanica) and lesion nematode (Pratylenchus zeae), the two most important nematode pests of sugarcane in Australia and worldwide. In pot experiments with M. javanica, the nematode did not multiply on several E. arundinaceus clones but populations increased 5-9 times in 9 weeks on two susceptible varieties (Q208A and Q235A). Some E. arundinaceus clones were also moderately resistant to P. zeae, as final nematode population densities in one pot experiment were significantly lower than on the standard varieties. Although a wider selection of hybrids must eventually be evaluated, these initial results indicate that Erianthus is a source of nematode resistance genes that are likely to be useful in sugarcane breeding programs.
机译：这项研究表明，非洲菊科植物Erianthus arundinaceus的克隆和杂交产生的克隆对根结线虫（Meloidogyne javanica）和病虫害线虫（Pratylenchus zeae）是有用的抗药性，这是澳大利亚和世界范围内甘蔗的两种最重要的线虫害虫。在用爪哇分枝杆菌进行的盆栽试验中，线虫并未在数个纯合大肠杆菌中克隆，但在两个敏感品种（Q208A和Q235A）上，种群在9周内增加了5-9倍。由于一个罐实验中的最终线虫种群密度显着低于标准品种，因此，某些阿鲁狄埃斯菌克隆也对玉米斑节菌具有中等抗性。尽管必须最终评估更多种类的杂种，但这些初步结果表明Erianthus是线虫抗性基因的来源，可能在甘蔗育种计划中有用。

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