Current status of resistance breeding of Japanese pine species to pine wilt disease

Kurinobu, Susumu

doi:10.1080/21580103.2008.9656338

Cited by 20 publications

(20 citation statements)

References 3 publications

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“…& Zucc) of Japan, where approximately 40,000,000 m 3 of pine forests have been blighted by the PWN since 1978 [7]. As a means of dealing with PWD in Japan, a breeding project to develop resistant pine varieties was started in western Japan in 1978 [8], and related projects have been promoted throughout Japan, excluding Hokkaido Island, as the damage has spread [7, 9]. In the first breeding project from 1978 to 1984, 16 PWD-resistant P. thunbergii clones (selection efficiency; 0.1%) were selected from 15,000 candidate trees, and 92 PWD-resistant P. densiflora clones (selection efficiency; 0.8%) were selected from 11,000 candidate trees [8].…”

Section: Introductionmentioning

confidence: 99%

Construction of genetic linkage map and identification of a novel major locus for resistance to pine wood nematode in Japanese black pine (Pinus thunbergii)

et al. 2019

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Background Pine wilt disease (PWD), which is caused by the pine wood nematode (PWN) Bursaphelenchus xylophilus, is currently the greatest threat to pine forests in Europe and East Asian countries including Japan. Constructing a detailed linkage map of DNA markers and identifying PWD resistance genes/loci lead to improved resistance in Pinus thunbergii, as well as other Pinus species that are also susceptible to PWD. Results A total F1 mapping population of 188 individuals derived from a cross between the PWD-resistant P. thunbergii varieties ‘Tanabe 54’ (resistant rank 2 to PWD) and ‘Tosashimizu 63’ (resistant rank 4 to PWD) was inoculated with PWN, and was evaluated for disease symptoms. To perform linkage analysis for PWN resistance, a set of three maps was constructed; two parental maps generated using the integrated two-way pseudo-testcross method, and a consensus map with population-type cross-pollination. The linkage map of ‘Tanabe 54’ consisted of 167 loci, and covered 14 linkage groups (LGs), with a total genetic distance of 1214.6 cM. The linkage map of ‘Tosashimizu 63’ consisted of 252 loci, and covered 14 LGs, with a total genetic distance of 1422.1 cM. The integrated consensus map comprised 12 LGs with the basic chromosome number of P. thunbergii, and a total genetic distance of 1403.6 cM. Results from quantitative trait loci (QTL) analysis using phenotype data and linkage maps indicated that PWN resistance is controlled by a single dominant allele, which was derived from the ‘Tanabe 54’ female parent. This major QTL was located on linkage group 3 and was designated PWD1 for PINE WILT DISEASE 1. Conclusions The PWD1 locus is a major resistance QTL located on the Pinus consensus LG03 that acts in a dominant manner to confer pine wood nematode resistance. Information from the present study will be useful for P. thunbergii breeding programs to improve resistance to PWD, and also to help identify susceptibility genes in Pinus species.

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Section: Introductionmentioning

confidence: 99%

Construction of genetic linkage map and identification of a novel major locus for resistance to pine wood nematode in Japanese black pine (Pinus thunbergii)

et al. 2019

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“…Following the era of intensive control via aerial insecticidal sprays, in the 1970s in Japan, environmental-friendly strategies for PWD control are nowadays a primary concern, and are mainly focused on the application of natural or/ and chemical nematicides/insecticides with low side effects (Naves et al 2005;Wang et al 2010b); biological agents (Maehara 2008;Wang et al 2011); and the more challenging and long-term approach, breeding programs for resistance and tolerance of forest trees (Toda and Kurinobu 2001;Kurinobu 2006;Sniezko 2006).…”

Section: Integrative Management Procedures -From Detection To Controlmentioning

confidence: 99%

Pine Wilt Disease: a threat to European forestry

et al. 2011

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“…Strict quarantine measures and extensive breeding programs for the selection of resistant trees represent the main effective strategies available for controlling the spread of the disease [ 18 , 19 ]. Yet, several methods have been studied and proposed for the management of PWD, including insect vector eradication, physical chipping, and tree injection with nematicidal compounds [ 20 , 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Resistance-Inducing Chemical Elicitors against Pine Wilt Disease on the Rhizosphere Microbiome

et al. 2020

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Pine wilt disease (PWD) caused by Bursaphelenchus xylophilus is a major threat to pine forests worldwide. Induction of resistance is a promising and safe management option that should be investigated in relation to its possible influence on the pine tree ecosystem, including the surrounding microbial communities. In this study, two main resistance-inducing chemical elicitors, methyl salicylic acid (MeSA) and acibenzolar-s-methyl (ASM), were tested for their control efficiency against PWD and their influence on the rhizosphere microbial composition. Foliar treatment of pine seedlings with the chemical elicitors resulted in a reduction in PWD severity, with ASM showing better control efficacy, reaching up to 73% compared to the untreated control. Moreover, bacterial community analysis of the rhizosphere revealed significant changes in several microbial taxa that were present at low relative abundance. In particular, ASM treatment resulted in a significant increase in specific microbial taxa, including members of the Rhodanobacter, Devosia, Bradyrhizobium, Acidibacter, Mesorhizobium, and Hyphomicrobium genera, which are known to play ecological and plant growth-promoting roles. Furthermore, chitinolytic bacteria were shown to be reduced in response to treatment with both MeSA and ASM. Altogether, the present findings demonstrate the occurrence of significant alterations in several ecologically important microbial taxa after treatment with resistance-inducing chemicals. As compared to MeSA treatment, ASM treatment was more effective at suppressing PWD and resulted in more beneficial changes in rhizosphere microbial composition.

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Current status of resistance breeding of Japanese pine species to pine wilt disease

Cited by 20 publications

References 3 publications

Construction of genetic linkage map and identification of a novel major locus for resistance to pine wood nematode in Japanese black pine (Pinus thunbergii)

Construction of genetic linkage map and identification of a novel major locus for resistance to pine wood nematode in Japanese black pine (Pinus thunbergii)

Pine Wilt Disease: a threat to European forestry

Influence of Resistance-Inducing Chemical Elicitors against Pine Wilt Disease on the Rhizosphere Microbiome

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