中文摘要：烟粉虱严重威胁全球番茄的种植，这是因为如今种植的所有番茄品种都对烟粉虱高度敏感。大多野生潘那利番茄对烟粉虱有较高的抗性。本文利用图谱技术研究该番茄品种对烟粉虱的相关抗性特征及其生化特征的遗传背景。研究结果表明，野生潘那利番茄的生化抗性特征与烟粉虱发生率的减少有直接的遗传相关性。
外文摘要：The whitefly Bemisia tabaci is a serious threat in tomato cultivation worldwide as all varieties grown today are highly susceptible to this devastating herbivorous insect. Many accessions of the tomato wild relative Solanum pennellii show a high resistance towards B. tabaci. A mapping approach was used to elucidate the genetic background of whitefly-resistance related traits and associated biochemical traits in this species. Minor quantitative trait loci (QTLs) for whitefly adult survival (AS) and oviposition rate (OR) were identified and some were confirmed in an F2BC1 population, where they showed increased percentages of explained variance (more than 30%). Bulked segregant analyses on pools of whitefly-resistant and -susceptible F-2 plants enabled the identification of metabolites that correlate either with resistance or susceptibility. Genetic mapping of these metabolites showed that a large number of them co-localize with whitefly-resistance QTLs. Some of these whitefly-resistance QTLs are hotspots for metabolite QTLs. Although a large number of metabolite QTLs correlated to whitefly resistance or susceptibility, most of them are yet unknown compounds and further studies are needed to identify the metabolic pathways and genes involved. The results indicate a direct genetic correlation between biochemical-based resistance characteristics and reduced whitefly incidence in S. pennellii.
外文关键词：Genetic linkage map；life-history；metabolic fingerprinting；parameters；tomato；whitefly
作者：van den Oever-van den Elsen, Floor；Lucatti, Alejandro F.；van Heusden, Sjaak；等
作者单位：瓦赫宁根大学研究中心
期刊名称：JOURNAL OF INTEGRATIVE PLANT BIOLOGY
期刊影响因子：3.67
出版年份：2016
出版刊次：4
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