Resistance of Wheat Accessions to the English Grain Aphid Sitobion avenae.
Resistance of Wheat Accessions to the English Grain Aphid Sitobion avenae.
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小麦种质对英国谷蚜 Sitobion avenae 的抗性
DOI：
10.1371/journal.pone.0156158
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发表时间：
2016
期刊：
影响因子：
3.7
通讯作者：
Liu TX
中科院分区：
文献类型：
--
作者：
Hu XS;Liu YJ;Wang YH;Wang Z;Yu XL;Wang B;Zhang GS;Liu XF;Hu ZQ;Zhao HY;Liu TX
麦长管蚜（Sitobion avenae）是小麦作物的主要害虫;然而，某些品种可能比其他品种对感染具有更强的抵抗力。本文以14个小麦品种（系）为材料，研究了抗感、抗逆和耐性3种典型的抗感机制。在实验室和田间条件下，在实验室条件下，在2个小麦品种之间进行选择时，对某些品种表现出强烈的歧视。具体而言，'Amigo'品种对S的适口性最低。所有品种的燕麦。Tm、Astron、Xanthus、Ww 2730和Batis的适口性也较低。因此，这些种质可能利用败育作为抗性机制。而在田间条件下，14个小麦品种上检测到的Alcohol数量差异不显著。以普通小麦（Triticum aestivum var. Chris）和Triticum turgidum（var. durum）杂交）的蚜量低，但产量损失大，说明其蚜量高，但耐蚜性差。相比之下，“Amigo”、"小偃22“和部分”186 Tm“样品的蚜量较高，但产量损失率较低，表明它们的蚜量低，但耐受性较好。98-10-35、小偃22、Tp、Tam 200、PI高等186 Tm小麦品种的蚜量和产量损失率在不同年份和不同田间表现出较大差异。小麦和小麦相关物种。因此，这些种质应考虑用于未来的研究。总体而言，S.在14个小麦品种中，‘西农1376’的适口性最好，产量损失率也最大，因此，燕麦最适合‘西农1376’。但不同品种/品系对蚜虫种群数量的影响在不同年份存在差异。因此，我们强烈建议在目标种植区域结合实验室和长期田间试验，以确定始终表现出对S.燕麦侵染
The English grain aphid, Sitobion avenae, is a major pest species of wheat crops; however, certain varieties may have stronger resistance to infestation than others. Here, we investigated 3 classical resistance mechanisms (antixenosis, antibiosis, and tolerance) by 14 wheat varieties/lines to S. avenae under laboratory and field conditions. Under laboratory conditions, alatae given the choice between 2 wheat varieties, strongly discriminated against certain varieties. Specifically, the ‘Amigo’ variety had the lowest palatability to S. avenae alatae of all varieties. ‘Tm’ (Triticum monococcum), ‘Astron,’ ‘Xanthus,’ ‘Ww2730,’ and ‘Batis’ varieties also had lower palatability than other varieties. Thus, these accessions may use antibiosis as the resistant mechanism. In contrast, under field conditions, there were no significant differences in the number of alatae detected on the 14 wheat varieties. One synthetic line (98-10-30, a cross between of Triticum aestivum (var. Chris) and Triticum turgidum (var. durum) hybridization) had low aphid numbers but high yield loss, indicating that it has high antibiosis, but poor tolerance. In comparison, ‘Amigo,’ ‘Xiaoyan22,’ and some ‘186Tm’ samples had high aphid numbers but low yield loss rates, indicating they have low antibiosis, but good tolerance. Aphid population size and wheat yield loss rates greatly varied in different fields and years for ‘98-10-35,’ ‘Xiaoyan22,’ ‘Tp,’ ‘Tam200,’ ‘PI high,’ and other ‘186Tm’ samples, which were hybrid offspring of T. aestivum and wheat related species. Thus, these germplasm should be considered for use in future studies. Overall, S. avenae is best adapted to ‘Xinong1376,’ because it was the most palatable variety, with the greatest yield loss rates of all 14 wheat varieties. However, individual varieties/lines influenced aphid populations differently in different years. Therefore, we strongly recommend a combination of laboratory and long-term field experiments in targeted planting regions to identify varieties/lines that consistently show high resistance to S. avenae infestation.