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Genetic diversity of Ganoderma in oil palm plantings


Citation

Miller, R.N.G. and Holderness, M. and Bridge, P.D. and Chung, G.F. (1999) Genetic diversity of Ganoderma in oil palm plantings. Plant Pathology, 48 (5). pp. 595-603. ISSN 0032-0862; eISSN: 0032-0862

Abstract

Isolates of Ganoderma spp. associated with basal stem rot of oil palm were obtained by sampling from two palm plantings in Malaysia. Members of a subset of these were compared using a combination of somatic incompatibility and molecular genetic analyses. Incompatibility interactions between heterokaryons in culture indicated that Ganoderma generally occurred as numerous distinct strains, with compatible strains usually confined to individual palms. Analysis of restriction fragment length polymorphisms (RFLPs) in presumptive mitochondrial DNA (mtDNA) revealed heterogeneity among isolates from neighbouring palms, and from within individual palms. The combination of mtDNA variability and somatic incompatibility suggests that Ganoderma BSR does not spread by direct root-to-root contact between palms. The results may indicate infection spread through basidiospore dispersal or through contact with a heterogenous long-term residual inoculum in debris.


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Additional Metadata

Item Type: Article
Divisions: Universiti Putra Malaysia
DOI Number: https://doi.org/10.1046/j.1365-3059.1999.00390.x
Publisher: British Society for Plant Pathology
Keywords: Basal stem rot (BSR); Ganoderma; Mitochondrial variation; Oil palm; Somatic incompatibility
Depositing User: Ms. Zaimah Saiful Yazan
Date Deposited: 15 Jan 2025 08:11
Last Modified: 15 Jan 2025 08:11
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1046/j.1365-3059.1999.00390.x
URI: http://psasir.upm.edu.my/id/eprint/114463
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