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首页> 外文期刊>Plant Pathology >Diversity of populations of Phytophthora infestans in relation to patterns of potato crop management in Latvia and Lithuania
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Diversity of populations of Phytophthora infestans in relation to patterns of potato crop management in Latvia and Lithuania

机译:与拉脱维亚与立陶宛的马铃薯作物管理模式相关的植物培养患者植物的多样性

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摘要

> Potato crop losses can be substantial when conditions for late blight ( Phytophthora infestans ) development and spread are favourable. In this study, drivers of differences between the P.?infestans population structures in Latvia and Lithuania, two neighbouring countries with similar potato‐growing traditions, were investigated. Genotypes of P.?infestans and population genetic diversity were analysed using a 12‐plex simple sequence repeat ( SSR ) marker assay. High genetic diversity was demonstrated in both populations, with population diversity being higher in Latvia. It would appear that local populations established from soilborne oospores early in the season are well adapted to the conditions in the region. However, somewhat greater spread and survival of local clones was detected in Lithuania, suggesting that potato cropping there is more vulnerable to clonal invasion than in Latvia. For effective disease management, current strategies should be adjusted according to the specific pathogen populations in the region, considering the reproduction and survival of the pathogen. Potato growers should implement late blight preventive measures such as longer field rotation to prevent oospore infections, especially in Latvia, and should use more disease resistant cultivars and high‐quality seed potatoes.
机译: > 当枯萎病的条件时,马铃薯作物损失可能很大( 植物博士生infestans )发展和传播是有利的。在这项研究中,差异的驱动因素 p.?Infestans 拉脱维亚和立陶宛的人口结构研究了两个具有类似马铃薯增长传统的邻国。基因型 p.?Infestans 使用12-Plex简单序列重复分析群体遗传多样性( SSR )标记测定。在两种群体中证明了高遗传多样性,拉脱维亚的人口多样性更高。似乎本赛季早期从土壤中营养孢子建立的当地种群适应了该地区的条件。然而,在立陶宛检测到局部克隆的稍微繁殖和存活,表明马铃薯种植比拉脱维亚更容易受到克隆入侵的影响。对于有效的疾病管理,考虑到病原体的繁殖和存活,应根据该区域的特定病原体群体调整目前的策略。马铃薯种植者应该落实较晚的枯萎预防措施,如较长的场地旋转,以防止卵孢菌感染,特别是在拉脱维亚,并且应该使用更多抗病的品种和高质量的种子土豆。

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  • 来源
    《Plant Pathology》 |2019年第6期|共8页
  • 作者单位

    Institute of Agricultural and Environmental SciencesEstonian University of Life SciencesKreutzwaldi 1 Tartu 51014 Estonia;

    Institute of Agricultural Resources and EconomicsPriekuli Research CentreZinatnes 2 Priekuli 4126 Latvia;

    Institute of AgricultureLithuanian Research Centre for Agriculture and ForestryInsituto al. 1 Akademija K?dainiai distr LT‐58344 Lithuania;

    The James Hutton InstituteInvergowrie Dundee DD2 5DA UK;

    Department of AgroecologyAarhus UniversityFoulum Tjele DK‐8830 Denmark;

    Institute of Agricultural and Environmental SciencesEstonian University of Life SciencesKreutzwaldi 1 Tartu 51014 Estonia;

    Institute of Agricultural and Environmental SciencesEstonian University of Life SciencesKreutzwaldi 1 Tartu 51014 Estonia;

    Institute of Agricultural and Environmental SciencesEstonian University of Life SciencesKreutzwaldi 1 Tartu 51014 Estonia;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 植物病理学;
  • 关键词

    adaptation; late blight; population diversity; sexual reproduction; simple sequence repeat ( SSR ) markers;

    机译:适应;迟到枯萎;人口多样性;性繁殖;简单的序列重复(SSR)标记;

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