Plant genotype and the preference and performance of herbivores: cultivar affects apple resistance to the florivorous weevil Anthonomus pomorum
Plant genotype and the preference and performance of herbivores: cultivar affects apple resistance to the florivorous weevil Anthonomus pomorum
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植物基因型与食草动物的偏好和表现：品种影响苹果对食花象甲 Anthonomus pomorum 的抗性
DOI：
10.1111/afe.12112
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发表时间：
2015
影响因子：
1.6
通讯作者：
S. Dorn
中科院分区：
文献类型：
--
作者：
K. Mody;J. Collatz;S. Dorn
植物抗性很大程度上取决于影响草食动物偏好或性能的植物特征。不同的植物基因型可能表现出特定的特征，从而导致对食草动物的不同抗性。很少有研究针对无性繁殖的果树品种上的象鼻虫（一种特殊的食草昆虫类群）进行这些方面的研究。我们研究了苹果品种对果树食草动物——食花苹果花象甲 Anthonomus pomorum（鞘翅目：象甲科）的偏好和性能的影响。我们量化了不同采集日期象鼻虫对五种不同苹果基因型的田间侵染作为偏好的衡量标准，以及在这些品种上发育的象鼻虫的质量和出现时间作为性能的衡量标准。不同品种间苹果花蕾受苹果蠹蛾侵染的情况存在显着差异。采集日期以品种特定的方式影响受感染花朵的数量。苹果品种之间的象鼻虫质量存在显着差异。 Ariwa（产生最重象鼻虫的品种）的象鼻虫平均质量比来自 Rewena（产生最轻象鼻虫的品种）的象鼻虫质量高 40%。不同品种的受侵染花朵中象鼻虫的出现时间存在显着差异。象鼻虫最早出现在 Ariwa 和 Retina 品种中，中间出现在 Discovery 和 Florina 品种中，最后出现在 Rewena 品种中。本研究表明，食果动物对果树的偏好和表现在代表特定树木基因型的苹果品种之间存在很大差异。这些差异可能直接或间接影响食草动物和拮抗动物种群，可考虑用于害虫管理。
Plant resistance strongly depends on plant characteristics that affect herbivore preference or performance. Different plant genotypes may express specific characteristics that lead to differential resistance to herbivores. Few studies have investigated these aspects for weevils, a particularly speciose taxon of insect herbivores, on fruit tree cultivars, which are vegetatively propagated. We studied the influence of apple cultivar on preference and performance of a fruit tree herbivore, the flower‐feeding apple blossom weevil Anthonomus pomorum (Coleoptera: Curculionidae). We quantified field infestation of five different apple genotypes by the weevil at different collection dates as measure of preference, as well as the mass and emergence time of weevils developing on these cultivars as measures of performance. Infestation of apple flower buds by A. pomorum differed significantly between cultivars. The collection date affected the number of infested flowers in a cultivar‐specific way. Weevil mass differed significantly between apple cultivars. The average mass of weevils from Ariwa, the cultivar producing the heaviest weevils, was 40% higher than the mass of weevils from Rewena, the cultivar producing the lightest weevils. Weevil emergence time from infested flowers differed significantly between cultivars. Weevils emerged earliest from cultivars Ariwa and Retina, at an intermediate time from Discovery and Florina, and latest from Rewena. The present study demonstrates that preference and performance of florivores feeding on fruit trees can strongly differ between apple cultivars representing specific tree genotypes. These differences may directly and indirectly affect herbivore and antagonist populations and can be considered for pest management.
食草动物引起的水果与食果动物相互作用的变化
影响因子：
5.5
作者：
Whitehead S;K. Poveda
通讯作者：
K. Poveda