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

被引：1

作者：

Dhlamini, Lerato ^{[1
]}

Jacobs, Adriaana ^{[1
,2
]}

van der Merwe, Nicolaas A. ^{[3
]}

Summerell, Brett ^{[1
,4
]}

Venter, Eduard ^{[1
]}

机构：

[1] Univ Johannesburg, Dept Bot & Plant Biotechnol, ZA-2006 Auckland Pk, South Africa

[2] Agr Res Council, Plant Hlth & Protect, Pretoria, South Africa

[3] Univ Pretoria, Forestry & Agr Biotechnol Inst, Dept Biochem Genet & Microbiol, Pretoria, South Africa

[4] Royal Bot Gardens Sydney, Australian Inst Bot Sci, Sydney, NSW 2000, Australia

来源：

AUSTRALASIAN PLANT PATHOLOGY | 2024年 / 53卷 / 01期

关键词：

Fusarium brachygibbosum; Intraspecific variation; DNA fingerprinting; Inter-simple sequence repeats; Genetic diversity; Molecular markers; MAT genes; 1ST REPORT; GENETIC DIVERSITY; IDENTIFICATION; DIEBACK; ROOT; WILT; ROT;

D O I：

10.1007/s13313-023-00943-7

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

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.

引用

页码：31 / 39

页数：9

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