共查询到19条相似文献,搜索用时 217 毫秒
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以31份百合品种(野生)为试材,采用人工蚜虫接种及蚜量比值法,研究了不同百合品种(野生)对蚜虫虫口数量的影响,以期获得抗蚜虫的百合种质。结果表明:不同百合品种(野生)对蚜虫的抗性表现出明显差异,蚜虫接种15d时各品种(野生)虫口数量差异甚大,0~237头不等。31份百合品种(野生)根据蚜量比值法可分为5级,7个品种(野生)为高感品种(野生);4个品种为感虫品种;2个品种(野生)为中抗品种(野生);5个品种(野生)为抗虫品种(野生);13个品种(野生)为高抗品种(野生)。 相似文献
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1菜蚜俗称蜜虫,是危害十字花科蔬菜多种蚜虫的总称。主要有桃蚜〔MyZus persicae Sulzer,又称桃赤蚜、烟蚜〕、萝卜蚜〔Lipaphiserysimi Kalt,又称菜缢管蚜〕和甘蓝蚜〔Brevicoryne brassicae Linn.〕3种。 相似文献
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苹果种质资源枝干轮纹病抗性评价 总被引:2,自引:0,他引:2
将田间自然发病抗性鉴定法与利用苹果轮纹病菌ZZ26人工接种枝条鉴定法相结合,对189份栽培种苹果种质资源进行了苹果轮纹病综合抗性鉴定,并根据抗病性鉴定结果对其进行抗病类型分类和评价。结果表明:不同苹果种质资源抗病性表现存在差异,但参试种质中未发现免疫种质。通过人工接种,189份苹果种质资源的抗病类型可分为:高抗(16个);中抗(75个);中感(81个);高感(17个)。通过田间调查,2012年得到抗病类型3种,即高抗(144个);中抗(44个);中感(1个)。2013年同样是3个抗病类型:高抗(14个);中抗(162个);中感(13个)。两年调查均无高感品种。2017年再次调查,结果显示田间调查与人工接种鉴定结果有随种植年限增加一致率逐渐提高的趋势,2012年为13.23%,2013年为38.62%,2017年则超过一半,达到57.14%。经过综合抗性筛选,最终得到表现一致性较好的高抗种质2份:北之幸和秦冠。 相似文献
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辣椒种质资源对桃蚜的抗性鉴定初报 总被引:3,自引:0,他引:3
温室苗期接蚜鉴定与田间鉴定结果表明,24个参试辣椒品种对桃蚜的反应不同,其中凉椒一号等4个品种对桃蚜表现为高抗;苗丰三号等4个品种对桃蚜表现为抗;超丰五号等8个品种对桃蚜表现为中抗;大羊角椒等4个品种对桃蚜表现为高感;保椒二号等4个品种对桃蚜表现为感。以高抗品种猪大肠和高感品种大羊角椒为亲本进行杂交,其杂交F1代对桃 蚜的反应表现为高抗(HR),F2代的抗虫与感虫植株分离符合3:1的比率,表明辣椒抗蚜性能够稳定遗传,其遗传方式为显性单基因控制的质量遗传。 相似文献
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47份鲜食玉米对丝黑穗病和瘤黑粉病的抗性鉴定与评价 总被引:1,自引:0,他引:1
2018年通过田间人工接种对47份鲜食玉米杂交种进行了由丝孢堆黑粉菌(Sporisorium reilianum)引起的玉米丝黑穗病和玉蜀黍黑粉菌(Ustilago maydis)引起的玉米瘤黑粉病的抗性鉴定和评价。对丝黑穗病的鉴定结果表明,47份鲜食玉米杂交种中无高抗材料;4份材料表现抗病,分别是三禾甜加糯6号、金辉588、金辉895和黑甜糯520,占8.5%;1份材料盛彩甜3号表现中抗,占2.1%;14份材料表现感病,占29.8%;28份材料表现高感,占59.6%。对瘤黑粉病的鉴定结果表明,47份鲜食玉米杂交种中27份材料表现高抗,占57.4%;6份材料表现抗病,占12.8%;6份材料表现中抗,占12.8%;5份材料表现感病,占10.6%;3份材料表现高感,占6.4%。鲜食玉米新品种中抗丝黑穗病品种比较匮乏,抗瘤黑粉病品种比较丰富,但兼抗两种病害的品种严重缺乏。 相似文献
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桃种质资源对桃蚜的抗性评价 总被引:8,自引:0,他引:8
通过对桃属(Prunus L.)植物5个种419份资源进行抗桃蚜(Myzus persicae)性的田间自然鉴定和初选出的34份抗性资源的人工接种鉴定,结果表明:山桃(P.davidiana)的抗性最强,甘肃桃(P.kansuensis)的抗性最弱 不同品种的抗蚜性差异很大,按照品种群划分,其蚜害指数寿星桃20.00、白桃45.70、油桃77.00、黄桃60.16、蟠桃77.86 筛选出15份抗性资源,这些资源可分为三类 山桃、寿星桃、碧桃。 相似文献
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D. Lewis 《The Journal of Horticultural Science and Biotechnology》2013,88(3):207-220
The world literature on the resistance of cultivated varieties of apple to Eriosoma lanigerum is critically surveyed, and a list of 18 varieties found immune or highly resistant by at least three independent workers is provided. In addition, 19 varieties are tabulated that have been variously described as immune (or highly resistant) and susceptible in different localities. Well authenticated but conflicting reports on a further 43 varieties confirm that biologic races of the aphid must exist.Despite this, Northern Spy has maintained an outstanding level of resistance wherever it has been tested. This resistance is shown to be controlled by a single dominant gene, Er, having little or no minor gene background. This gene appears to be closely linked with an incompatibility gene. The gene Er has considerable potential value in breeding for resistance in rootstock and scion apple varieties. 相似文献
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ABSTRACT: BACKGROUND: Phloem-feeding insects are among the most devastating pests worldwide. They not only cause damage by feeding from the phloem, thereby depleting the plant from photo-assimilates, but also by vectoring viruses. Until now, the main way to prevent such problems is the frequent use of insecticides. Applying resistant varieties would be a more environmental friendly and sustainable solution. For this, resistant sources need to be identified first. Up to now there were no methods suitable for high throughput phenotyping of plant germplasm to identify sources of resistance towards phloem-feeding insects. RESULTS: In this paper we present a high throughput screening system to identify plants with an increased resistance against aphids. Its versatility is demonstrated using an Arabidopsis thaliana activation tag mutant line collection. This system consists of the green peach aphid Myzus persicae (Sulzer) and the circulative virus Turnip yellows virus (TuYV). In an initial screening, with one plant representing one mutant line, 13 virus-free mutant lines were identified by ELISA. Using seeds produced from these lines, the putative candidates were re-evaluated and characterized, resulting in nine lines with increased resistance towards the aphid. CONCLUSIONS: This M. persicae-TuYV screening system is an efficient, reliable and quick procedure to identify among thousands of mutated lines those resistant to aphids. In our study, nine mutant lines with increased resistance against the aphid were selected among 5160 mutant lines in just 5 months by one person. The system can be extended to other phloem-feeding insects and circulative viruses to identify insect resistant sources from several collections, including for example genebanks and artificially prepared mutant collections. 相似文献
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为挖掘柑橘溃疡病抗性关键基因,对柑橘促分裂原活化蛋白激酶(MAPK)基因家族进行注释和功能域分析,明确了CsMPK1、CsMPK3、CsMPK4、CsMPK6和CsMPK19的组织表达特异性和在抗病品种‘金弹’(Fortunella japonica Swingle)和感病品种‘晚锦橙’(Citrus sinensis Osbeck)中受病原菌(Xanthomonas citri subsp.citri,Xcc)诱导的表达情况;并对CsMPK19进行了生物信息分析。共注释出12个柑橘MAPK基因家族成员,根据系统发育树将其分为3个亚类,均含有促分裂原活化蛋白激酶(Pkinase)功能结构域。其中CsMPK1、CsMPK3、CsMPK4-1和CsMPK6在果实中表达水平较高,CsMPK19在叶片中表达量相对较高。CsMPK1的表达在溃疡病抗(感)品种中均受病原菌强烈诱导,且在感病品种中上调的幅度高于抗病品种;CsMPK3和CsMPK6仅在感病品种中病原菌处理早期有较强烈的响应;CsMPK4-1和CsMPK4-2的表达在感病品种中受病原菌诱导上调,而在抗病品种中病原菌处理后低于水处理对照;... 相似文献