南非草地生物群落中布拉希吉布斯镰刀菌复合菌种的种群结构

IF 0.9 4区 农林科学 Q4 PLANT SCIENCES
Lerato Dhlamini, Adriaana Jacobs, Nicolaas A. van der Merwe, Brett Summerell, Eduard Venter
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引用次数: 0

摘要

Brachygibbosum Fusarium Padwick 是一种植物病原菌,分布广泛,可感染多种寄主植物。在南非,有关镰刀菌遗传多样性的研究数量有限,尤其是在未受干扰的土壤中。本研究利用简单序列间重复(ISSR)和交配型基因调查了 F. brachygibbosum 的遗传多样性。F. brachygibbosum 分离物采集自南非草原生物群落中的四个不同地理区域。共有 10 个 ISSR 引物产生了 64 个不同的、可重复的扩增子,多态性达到 100%。ISSR 标记揭示了高水平的种内变异,这体现在各种遗传多样性指数上。在交配型基因分析中,四个种群中都发现了 MAT1-1-2 基因,但只有来自 Groenkloof 自然保护区的种群存在 MAT1-2-1 基因。这项研究的数据将大大有助于了解南非草地镰刀菌及其在草地生物群落中的种群结构。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

The population structure of the Fusarium brachygibbosum species complex in the grassland biome of South Africa

The population structure of the Fusarium brachygibbosum species complex in the grassland biome of South Africa

Fusarium brachygibbosum Padwick is a phytopathogen with a widespread distribution, infecting various host plants. In South Africa, there is a limited number of studies on the genetic diversity of fusaria, particularly in undisturbed soils. In the current study, the genetic diversity of F. brachygibbosum was investigated using inter-simple sequence repeat (ISSR) and mating type genes. The F. brachygibbosum isolates were collected from four different geographic regions within the grassland biome of South Africa. A total of ten ISSR primers produced 64 distinct and reproducible amplicons, with 100% polymorphism. The ISSR markers revealed high levels of intraspecific variation, which is depicted by various genetic diversity indexes. In the analysis of mating type genes, the MAT1-1-2 gene was found among the four populations, but the MAT1-2-1 gene was only present in the population from the Groenkloof Nature Reserve. The data from this study will contribute substantially to knowledge of grassland fusaria of South Africa and their population structure in the grassland biome.

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来源期刊
Australasian Plant Pathology
Australasian Plant Pathology 生物-植物科学
CiteScore
2.90
自引率
0.00%
发文量
51
审稿时长
3 months
期刊介绍: Australasian Plant Pathology presents new and significant research in all facets of the field of plant pathology. Dedicated to a worldwide readership, the journal focuses on research in the Australasian region, including Australia, New Zealand and Papua New Guinea, as well as the Indian, Pacific regions. Australasian Plant Pathology is the official journal of the Australasian Plant Pathology Society.
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