Scholarlink

<p>Agriculture is increasingly challenged by emerging pathogenic fungal variants that cause severe diseases and substantial yield losses. Solanaceous crops, including tomato, brinjal, chili, and bell pepper, are particularly vulnerable due to their economic importance and contribution to human nutrition. Among the diseases affecting these crops, <i>Fusarium</i> wilt has become a major global concern. In this study, a total of 75 <i>Fusarium</i> wilt isolates were collected from solanaceous crops across three agro-climatic regions (North, Central, and South) of Kashmir. Genetic diversity, population structure, and evolutionary relationships among the isolates were assessed using seven microsatellite markers. Analysis of molecular variance (AMOVA) indicated high genetic variability within populations, with limited differentiation among regions. Population structure analysis grouped the isolates into two distinct genetic clusters with minimal admixture. Notably, dendrogram-based clustering did not strictly correspond to host species or <i>Fusarium</i> species, suggesting complex ecological and evolutionary drivers underlying pathogen distribution. Isolate identity was further confirmed through ITS and TEF gene sequencing. These findings provide insights into the population dynamics of <i>Fusarium</i> species infecting solanaceous crops and may support the development of effective disease management strategies.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Population structure and genetic diversity of Fusarium species on solanaceous crops in the North-Western Himalayas

  • 期刊论文

  • 发表日期：

    2026年3月2日

查看全文
  • Tasmeen J. Parihar,
  • Sehla Khursheed,
  • Syed Shoaib Mubashir,
  • Shafqat Mehraj,
  • Zahoor A. Bhat,
  • Asif B. Shikari,
  • Niyaz A. Dar,
  • M. Ashraf Bhat,
  • Mehraj D. Shah,
  • Khalid Z. Masoodi

摘要

Agriculture is increasingly challenged by emerging pathogenic fungal variants that cause severe diseases and substantial yield losses. Solanaceous crops, including tomato, brinjal, chili, and bell pepper, are particularly vulnerable due to their economic importance and contribution to human nutrition. Among the diseases affecting these crops, Fusarium wilt has become a major global concern. In this study, a total of 75 Fusarium wilt isolates were collected from solanaceous crops across three agro-climatic regions (North, Central, and South) of Kashmir. Genetic diversity, population structure, and evolutionary relationships among the isolates were assessed using seven microsatellite markers. Analysis of molecular variance (AMOVA) indicated high genetic variability within populations, with limited differentiation among regions. Population structure analysis grouped the isolates into two distinct genetic clusters with minimal admixture. Notably, dendrogram-based clustering did not strictly correspond to host species or Fusarium species, suggesting complex ecological and evolutionary drivers underlying pathogen distribution. Isolate identity was further confirmed through ITS and TEF gene sequencing. These findings provide insights into the population dynamics of Fusarium species infecting solanaceous crops and may support the development of effective disease management strategies.