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The distribution and host range of the banana Fusarium wilt fungus, Fusarium oxysporum f. sp cubense, in Asia

文献类型： 外文期刊

作者： Mostert, Diane 1 ; Molina, Agustin B. 2 ; Daniells, Jeff 3 ; Fourie, Gerda 4 ; Hermanto, Catur 5 ; Chao, Chih-Ping; 1 ;

作者机构： 1.Stellenbosch Univ, Dept Plant Pathol, Stellenbosch, South Africa

2.Biovers Int Asia Pacific, IRRI Campus, Los Banos, Philippines

3.Dept Agr & Fisheries, South Johnstone, Qld, Australia

4.Univ Pretoria, Dept Microbiol & Plant Pathol, FABI, Pretoria, South Africa

5.Indonesian Agcy Agr Res & Dev, Jakarta, Indonesia

6.Taiwan Banana Res Inst, Pingtung, Taiwan

7.Lapanday Foods Corp, Davao, Philippines

8.Malaysian Agr Res & Dev Inst, Selangor, Malaysia

9.ICAR Natl Res Ctr Banana, Tiruchchirappalli, Tamil Nadu, India

10.Guangdong Acad Agr Sci, Inst Fruit Tree Res, Guangzhou, Guangdong, Peoples R China

期刊名称：PLOS ONE （ 影响因子：3.24； 五年影响因子：3.788 ）

ISSN： 1932-6203

年卷期： 2017 年 12 卷 7 期

页码：

收录情况： SCI

摘要： Fusarium oxysporum formae specialis cubense (Foc) is a soil-borne fungus that causes Fusarium wilt, which is considered to be the most destructive disease of bananas. The fungus is believed to have evolved with its host in the Indo-Malayan region, and from there it was spread to other banana-growing areas with infected planting material. The diversity and distribution of Foc in Asia was investigated. A total of 594 F. oxysporum isolates collected in ten Asian countries were identified by vegetative compatibility groups (VCGs) analysis. To simplify the identification process, the isolates were first divided into DNA lineages using PCR-RFLP analysis. Six lineages and 14 VCGs, representing three Foc races, were identified in this study. The VCG complex 0124/5 was most common in the Indian subcontinent, Vietnam and Cambodia; whereas the VCG complex 01213/16 dominated in the rest of Asia. Sixty-nine F. oxysporum isolates in this study did not match any of the known VCG tester strains. In this study, Foc VCG diversity in Bangladesh, Cambodia and Sri Lanka was determined for the first time and VCGs 01221 and 01222 were first reported from Cambodia and Vietnam. New associations of Foc VCGs and banana cultivars were recorded in all the countries where the fungus was collected. Information obtained in this study could help Asian countries to develop and implement regulatory measures to prevent the incursion of Foc into areas where it does not yet occur. It could also facilitate the deployment of disease resistant banana varieties in infested areas.

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