A New Late-ripening Large-nut Indigenous Korean Chestnut Cultivar, Mipung

Kim, Mahn Jo; Lee, Uk; Byun, K.O.; Lee, Moon Ho; Jung, Myung Suk; Kwon, Yong Hee

doi:10.21273/hortsci.43.6.1918

Cited by 3 publications

(2 citation statements)

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“…Thus, during the 40 years of selection of C. crenata in Japan, resistant varieties have been used successfully, but the mode of inheritance of resistance was not established, which limits the application of more rapid contemporary methods for selection. Kim et al (2008) report that in South Korea, during the period 1985-1999, a new variety of C. crenata resistant to D. kuriphilus was obtained. It was selected from wild plantings of the Japanese chestnut in the country.…”

Section: Resistant Varietiesmentioning

confidence: 99%

Risk assessment of the oriental chestnut gall wasp, Dryocosmus kuriphilus for the EU territory and identification and evaluation of risk management options

2010

EFS2

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The Panel on Plant Health was requested by the European Commission to deliver a scientific opinion on the risk posed by the oriental chestnut gall wasp, Dryocosmus kuriphilus to the EU territory and to identify and evaluate risk management options. Additional analyses were conducted by the Panel to a) determine the distribution of the endangered area within the EU territory; b) investigate the pattern and rate of pest diffusion and c) consider the environmental risk of introduction of the biological control agent Torymus sinensis identified as a potential management option. The Panel concluded in its assessment that a) Castanea plants for intended planting represent the main pathway for entry of D. kuriphilus to the EU; b) D. kuriphilus has a very high potential for establishment in the EU and the climate is suitable wherever Castanea sativa is grown in southern, central and western Europe; c) the average rate of spread of D. kuriphilus is estimated as 8 km/yr; d) spread within the EU is likely, due to adult dispersal by flight and the movement of plants containing eggs and larvae which remain undetected within dormant buds; e) the potential effects on fruit yield reduction are considered moderate and the environmental impact in Castanea woodland is considered as low; f) all EU chestnut production is endangered but the areas of fruit production with the highest degree day accumulations where D. kuriphilus is absent, e.g. in northern Portugal, northern Spain and south-west France, are identified as particularly at risk; g) management options to reduce likelihood of introduction and spread consist of certifying Castanea planting material from pest free areas/places of production; h) classical biological control and plant varietal resistance are identified as management options to reduce the magnitude of impact. KEY WORDSCastanea spp., Dryocosmus kuriphilus, EU territory, management options, oriental chestnut gall wasp, risk assessment. SUMMARYFollowing a request from the European Commission, the Panel on Plant Health was asked to deliver a scientific opinion on the risk posed by the oriental chestnut gall wasp, Dryocosmus kuriphilis Yasumatsu to the EU territory. It was asked to identify risk management options and to evaluate their efficiency in reducing the risk to plant health posed by this organism.The Panel conducted its assessment following the EFSA Guidance on a harmonised framework for pest risk assessment 4 . Additional analyses were conducted to a) determine the distribution of Castanea spp. and the endangered area within the EU territory b) investigate the mechanisms of pest diffusion based on historical records following first introduction of the pest into the EU in 2002 and c) consider the environmental risk of introduction of the biological control agent Torymus sinensis identified as a potential management option to reduce the magnitude of impact of D. kuriphilus.From its analysis of the evidence, the Panel reached the following conclusions:• The movement of Castanea spp. as living parts of...

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Section: Resistant Varietiesmentioning

confidence: 99%

Risk assessment of the oriental chestnut gall wasp, Dryocosmus kuriphilus for the EU territory and identification and evaluation of risk management options

2010

EFS2

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“…mollissima , are widely cultivated in the fields 7 . Moreover, new Korean indigenous cultivars, such as Mipung 8 and Jahong 9 , have been developed to improve production under various environmental conditions. The nut weight represents one of the most important traits that can determine the economic success of a grower 1 .…”

Section: Introductionmentioning

confidence: 99%

Identification of transcriptome-wide, nut weight-associated SNPs in Castanea crenata

Kang

Shin

et al. 2019

Sci Rep

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Nut weight is one of the most important traits that can affect a chestnut grower’s returns. Due to the long juvenile phase of chestnut trees, the selection of desired characteristics at early developmental stages represents a major challenge for chestnut breeding. In this study, we identified single nucleotide polymorphisms (SNPs) in transcriptomic regions, which were significantly associated with nut weight in chestnuts (Castanea crenata), using a genome-wide association study (GWAS). RNA-sequencing (RNA-seq) data were generated from large and small nut-bearing trees, using an Illumina HiSeq. 2000 system, and 3,271,142 SNPs were identified. A total of 21 putative SNPs were significantly associated with chestnut weight (false discovery rate [FDR] < 10−5), based on further analyses. We also applied five machine learning (ML) algorithms, support vector machine (SVM), C5.0, k-nearest neighbour (k-NN), partial least squares (PLS), and random forest (RF), using the 21 SNPs to predict the nut weights of a second population. The average accuracy of the ML algorithms for the prediction of chestnut weights was greater than 68%. Taken together, we suggest that these SNPs have the potential to be used during marker-assisted selection to facilitate the breeding of large chestnut-bearing varieties.

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Current state of knowledge of the Korean Cynipini: subspecies description, new combinations and checklist (Hymenoptera, Cynipidae)

Pujadé-Villar

Kang

Bae

et al. 2020

Journal of Asia-Pacific Entomology

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A New Late-ripening Large-nut Indigenous Korean Chestnut Cultivar, Mipung

Cited by 3 publications

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Risk assessment of the oriental chestnut gall wasp, Dryocosmus kuriphilus for the EU territory and identification and evaluation of risk management options

Risk assessment of the oriental chestnut gall wasp, Dryocosmus kuriphilus for the EU territory and identification and evaluation of risk management options

Identification of transcriptome-wide, nut weight-associated SNPs in Castanea crenata

Current state of knowledge of the Korean Cynipini: subspecies description, new combinations and checklist (Hymenoptera, Cynipidae)

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