Canopy and Ear Traits Associated With Avoidance of Fusarium Head Blight in Wheat.
Canopy and Ear Traits Associated With Avoidance of Fusarium Head Blight in Wheat.
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DOI：
10.3389/fpls.2018.01021
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发表时间：
2018
影响因子：
5.6
通讯作者：
Ray RV
中科院分区：
文献类型：
--
作者：
Jones S;Farooqi A;Foulkes J;Sparkes DL;Linforth R;Ray RV
以小麦赤霉病（Fusarium head blight， FHB）为研究对象，采用3个田间试验和2个温室试验，分别对小麦双单倍体和优良基因型进行地面接种和头部喷雾接种，以鉴定与赤霉病（Fusarium head blight， FHB）相关的作物冠层和穗部性状。在所有试验中，旗叶长度和分蘖数都被一致认为是对禾枯镰刀菌、枯镰刀菌和avenaceum引起的FHB进展最重要的冠层性状。穗部性状对黄斑蝽的影响更大，因为黄斑蝽可能具有更多样化的传播途径。一致地，小穗密度与田间疾病严重程度的增加有关。稻瘟病菌（F. graminearum， F. culmorum， F. langsethiae）是主要的真菌毒素产生菌，其毒素与真菌生物量和穗粒数显著相关。分蘖数较低、叶片较短、穗密度较低的基因型可能能够避免由F. graminearum、F. culmorum、F. avenaceum或Microdochium引起的FHB疾病，但选择这些冠层和穗结构性状来避免小麦疾病可能会导致潜在的粮食产量权衡，因此在易感基因型中仅具有适度优势。
Doubled haploid and elite wheat genotypes were ground inoculated in three field experiments and head spray inoculated in two glasshouse experiments, using mixed Fusarium and Microdochium species, to identify crop canopy and ear traits associated with Fusarium head blight (FHB) disease. In all experiments, flag leaf length and tiller number were consistently identified as the most significant canopy traits contributing to progression of FHB caused by Fusarium graminearum, F. culmorum, and F. avenaceum. The influence of ear traits was greater for F. poae that may possess more diverse routes for transmission and spread. Consistently, spikelet density was associated with increased disease severity in the field. F. graminearum, F. culmorum, and F. langsethiae were the main mycotoxin producers and their respective toxins were significantly related to fungal biomass and number of spikelets per ear. Genotypes with lower tiller numbers, shorter flag leaves and less dense ears may be able to avoid FHB disease caused by F. graminearum, F. culmorum, F. avenaceum, or Microdochium species however selection for these canopy and ear architectural traits to enable disease avoidance in wheat is likely to result in a potential trade-off with grain yield and therefore only moderately advantageous in susceptible genotypes.
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影响因子：
5.4
作者：
Buerstmayr, H;Lemmens, M;Ruckenbauer, P
通讯作者：
Ruckenbauer, P
影响因子：
2.3
作者：
Buerstmayr, H;Steiner, B;Ruckenbauer, P
通讯作者：
Ruckenbauer, P
影响因子：
5.8
作者：
Daoura, Bachir Goudia;Chen, Liang;Hu, Yin-Gang
通讯作者：
Hu, Yin-Gang
近等基因系的抗旱QTL评价以及影响水稻剑叶宽度、小穗数和根体积的位点精细定位
影响因子：
5.4
作者：
Ding, Xipeng;Li, Xiaokai;Xiong, Lizhong
通讯作者：
Xiong, Lizhong
DOI：
10.1590/s1516-89132001000400001
发表时间：
2001-01-01
影响因子：
1
作者：
Destro, D;Miglioranza, E;de Almeida, JCV
通讯作者：
de Almeida, JCV