Welcome to VII International Chestnut Symposium

Lugo, Spain 

Higher Polytechnic Engineering School/Escuela Politécnica Superior (EPS)
Pabellón III / Pavilion III
C/ Benigno Ledo

June 26-29, 2023


The Chestnut Leaf of the Botanica Album by Abe Rábade

Welcome to VII International Chestnut Symposium


June 25 Sunday

19:00 - 20:30
Welcome cocktail reception

La Ferretería Eventos & Co
Rúa San Froilán, 11, 27001 Lugo


June 26 Monday

8:00 - 9:00


Opening Ceremony and welcome

General Director of Forest Planning and Management. Xunta de Galicia: Mr. José Luis Chan Rodríguez. Spain. 

Major of Lugo. Concello de Lugo. Ms. Lara Méndez López. Spain. 

Deputy Director of the Polytechnic High School of Engineering: Dr. Emilio Carral Vilariño 

Chairperson ISHS Division Temperate Tree Nuts (DNUT): Dr. Giulia Marino. Department of Plant Sciences. University of California. USA.

Chairperson of the ISHS Chestnut Workgroup: Dr. José Gomes Laranjo. Universidade Trás-os-Montes e Alto Douro. Portugal.  

Vice-Chairperson ISHS Division Temperate Tree Nuts (DNUT). Convener: Dr. Santiago Pereira-Lorenzo. Universidade de Santiago de Compostela. Spain.


Coffee Break


Plenary lectures:

Chairperson: Dr. Ángela Martín. UCO. Spain

Dr. José Gomes Laranjo. The world chestnut sector. UTAD. Portugal.

Dr. Andrea Vaninni. How the integration of different innovative solutions can improve the sustainability of chestnuts fruits production and quality. UNITUS. Italy.


13:30 - 15:00


Oral presentations: 15 minutes, questions included.

Pósters will be presented orally for a maximum of 5 minutes, questions included.

It is strictly prohibited to take photos of any scientific material without the explicit permission from the authors. Authors are therefore asked to indicate explicitly on their poster whether they forbid or allow photography of their work: photography encouraged | photography NOT allowed

1st Session: Chestnut and climate change
Chairperson: Dr. Giovanni Gamba. UNITO. Italy.

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Oral presentations:

Chestnut orchards sustainability and resilience to climate change, a multidisciplinary approach through precision farming and breeding. Dr. Lorenzo Rosso. UNITO. Italy.

Methodology for developing phenoclimatic modelling of chestnut varieties and revitalizing approach of chestnut grower's local knowledfge in France in the ROC-CHA project. Dr. Yildiz Aumeeruddy-Thomas. CEFE-CNRS France.

Effects of osmoprotective compounds on freezing tolerance in chestnut (Castanea sativa L) leaves. Dr. Miguel Ellena. INIA. Chile.

ClimCast. Predicting the behavior of Portuguese chestnut cultivars grafted on ColUTAD under different edafoclimatic conditions. Dr. Laranjo. UTAD. Portugal.


Effects of climatic conditions on parasitism of D. kuriphilus by native and introduced parasitoids at the western edge of the sweet chestnut distribution. Dr. M. F. Romay-Río. USC. Spain.

On-farm evaluation of 471 Chinese and hybrid chestnut grower selections in the Eastern US. Dr. Elizabeth Prenger. MU. USA.

Estimation of carbon stock in young sweet chestnut forest and agroforest plantations. Dr. Maria Sameiro Patrício. IPB. Portugal.


16:15 - 18:00
2nd Session: Chestnut Genomics
Chairperson: Dr. Claudia Mattioni. CNR. Italy

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Oral presentations:

Functional identification of CmAP1, the homologous gene of APETALA1, in Castanea mollissima. Dr. Yunhe Cheng. Beijing Academy of Forestry & Pomology Sci. China.

Pooled whole genome sequencing method (Pool-Seq) to identify genomic regions associated to Dryocosmus Kuriphilus Yasumatsu resistance in European Castanea sativa Mill. Dr. Isacco Beritognolo. CNR-IRET. Italy.

Castanea crenata Ginkbilobin2-like as a resistance gene to Phytophthora cinnamomi infection. Dr. Susana Serrazina. ULisboa. Portugal.

The first european chestnut (C. sativa) genome. Dr. Diego Micheletti. Fondazione Mach. Italy.

A comparative transcriptomic analysis of low boron-efficiency and high boron-efficiency Castanea mollissima varieties. Beijing Academy of Agriculture and Forestry Sciences. Dr. Guanglong Hu. China.


Genes activated during the defensive response of resistant chestnut genotypes againts Dryocosmus kuriphilus. Dr. Beatriz Cuenca. TRAGSA. Spain.

A specific molecular diagnostic test for Gnomoniopsis castanea (syn. smithogilvyi) and Cryphonectria parasitica. Dr. François LEFORT. University of Applied Sciences and Arts Western Switzerland. Switzerland.

Genomic approaches to dissect drought tolerance in Castanea sativa Mill. Adrian Perez Rial. UCO. Spain.

Chromosome-level genome assembly of the red mutant of Chinese chestnut(Castanea mollissima)provides new insights into acumination of anthocyanin. Dr. Qingzhong Liu. Shandong Institute of Pomology. China.

Identification of a new QTL for ink disease resistance caused by Phytophthora cinnamomi in a chestnut interspecific hybrid progeny. Dr. Clement Larue. INRAE, UMR Biogeco. France.

Establishment of an efficient somatic embryo regeneration system and CmGRF7 modulates the development of somatic embryos in Chinese chestnut. Dr. Qingqin Cao. Beijing University of Agriculture. China.


19:00 - 20:00
Visit to the Roman Town

June 27 Tuesday

09:00 - 09:30
Chairperson: Dr. Luca Dondini. UNIBO. Italy
Invited speaker: Present and Future of Chestnut Production in Turkey. Dr. Burak AKYÜZ (Co-author: Dr. Ümit Serdar). Ondokuz Mayis University, Turkey.


09:30 – 11:00
3rd Session: Pests and Diseases
Chairperson: Dr. Andrea Vannini. UNITUS. Italy

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Oral presentations:

The fungal community associated with individuals of the ambrosia beetle Xylosandrus germanus captured in chestnut groves. Dr. Carmen Morales-Rodriguez. UNITUS. Italy.

Establishment of a biological control program of the blight fungus (Cryphonectria parasitica) adapted to a chestnut production site in western Hungary. UNIDEB. Dr. László Radócz.

Past and present comparison of the incidence of chestnut blight in South Tyrol (northern Italy). Dr. Sanja Baric. Free University of Bozen-Bolzano. Italy.

Gall wasp susceptibility of chestnut cultivars in an organic South Carolina orchard. Dr. Gregory L. Reighard. Clemson University. USA.

Chestnut mosaic virus and the interference with plant canopy and production. Dr. Sergio Murolo. UNIVPM. Italy.

Determination of the susceptibility levels to root rot disease of some rootstock candidates in chestnut. Dr. Burak AKYÜZ. Ondokuz Mayis University. Turkey.


Coffee Break


3rd Session: Pests and Diseases (continued)
Chairperson: Dr. Francois Lefort. HEPIA. Switzerland.


Anthropogenic and landscape features are associated with ink disease impact in Central Italy. Dr. Andrea Vannini. UNITUS. Italy.

Hybrid de novo genome assembly and comparative genomics of three different isolates of Gnomoniopsis castaneae. Dr. Andrea Vannini. UNITUS. Italy.

Preventive biological protection method on young chestnut seedlings for controlling the chestnut blight disease. Dr. László Radócz. UNIDEB. Hungary.

Presence of Gnomoniopsis castaneae in chestnut areas in Spain and possible association with Dryocusmus kuriphilus infestation. Dr. Andrea Vannini. UNITUS. Italy.

Presence of Gnomoniopsis castanea (syn. smithogilvyi) in chestnuts, rootstocks and grafts of chestnut varieties in Ticino. Dr. François lefort. University of Applied Sciences and Arts Western Switzerland. Switzerland.

Protection from ink disease of Castanea sativa orchards: first steps of INKAS Project the rural development program for Marche region (Central – Eastern Italy). Dr. Sergio Murolo. UNIVPM. Italy.

Wasps and weevils in Michigan chestnut orchards: biology, distribution, and management. Dr. Maximilian Ferguson. MSU. USA.

Identification of two pathogenic fungi, Neofusicoccum parvum and Neopestalotiopsis sp., on European chestnut (Castanea sativa Mill.). Dr. Marta Ciordia. SERIDA. Spain.

Pathogenicity of Gnomoniopsis smithogilvyi on Four Varieties of Sweet Chestnut from Galicia (Spain). Dr. María Fraga. Fauna Útil. Spain.

Evaluation of the biological control of Cryphonectria parasitica in four orchards of sweet chestnut in Galicia (Spain). Dr. Olga Aguín Casal. Estación Fitopatolóxica Areeiro. Spain.

First experiences with chestnut brown rot (Gnomoniopsis castaneae) in Austria. Ulrike Persen. Institute of Plant Health. Austria.



4th Session: Biodiversity and conservation
Chairperson: Ángela Martín. UCO. Spain.

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Oral presentations:

Genetic heritage of sweet chestnut genotypes in Montseny Natural Park, Catalonia. Dr. Joan Abel Bachs. IRTA. Spain.

Biocultural diversity of Castanea sativa (Mill.) across Eurasia. Dr. Paola Pollegioni. CNR. Italy.

Castanea sativa ancient trees across Europe: source of genetic diversity. Dr. Claudia Mattioni. CNR. Italy.

Location and differentiation of chestnut tree (Castanea sativa Mill.) individuals grafted with traditional cultivars using spatio-temporal analysis of remote-sensed imagery, dendro-chronological analysis, and SSR genotyping. Dr. Emilio Díaz-Varela. USC. Spain.

Monitoring and protection of local genetic resources of sweet chestnut (Castanea sativa Mill.) by integrated analysis of cultivated and wild populations: case study of Umbria and Lombardy regions (Italy). Dr. Isacco Beritognolo. CNR. Italy.


Principal Component Analysis and phytochemical fingerprinting as tools for genotype traceability in Castanea spp. fruits. Dr. Gabriele Loris Beccaro. UNITO. Italy.

Conservation of European chestnut germplasm using biotechnological tools. Dr. Elena Corredoira. CSIC. Spain.

Genetic diversity of the Italian chestnut accessions. Dr. Luisa Palmieri. Fondazione Mach. Italy.

Genetic diversity of chestnut trees of Martaínha variety assayed by iPBS and ISSR markers. Dr. José Gomes Laranjo. UTAD. Portugal.

Morphological characterization of characters associated with chestnut fruit from Martaínha variety. Dr. José Gomes Laranjo. UTAD. Portugal.


14:00 - 15:30


Short trip to Maceda’s Nursery of TRAGSA. Dr. Beatriz Cuenca-Valera.

Visit to Ourense (those who already know the Nursery).

June 28 Wednesday

9:00 - 10:25
5th Session: Chestnut propagation
Chairperson: Dr. Beatriz Cuenca Valera. TRAGSA. Spain

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Oral presentations:

Study of the biochemical and physiological dynamics occurring during grafting: a further step towards the prediction of graft incompatibility in chestnut. Dr. Giovanni Gamba. UNITO. Italy.

Protocols for the micropropagation of several chestnut varieties. Dr. Juan Fernández-Lorenzo. USC. Spain.

Development of a regeneration protocol for chestnut Italian cultivar ‘Marrone di Zocca’. Dr. Marco Defrancesco. Italy.

In Vitro Propagation of Castanea sativa Mill. Dr. Hashimah Elias. Universiti Malaysia Sarawak. Malaysia.


The new EU chestnut nursery certification: processes, opportunities and critical issues for the sector. Dr. Lorenzo Rosso. UNITO. Italy.

Efficient in vitro shoot proliferation of ‘Marrone’ accessions (Castanea sativa Mill.). Dr. Sara Alessandri. UNIBO. Italy.

Cryopreservation of Chestnut Zygotic Embryos by Dehydration ‘One-Step Freezing’. Dr. Tamari Kutchava. Tbilisi State University. Georgia.

In vitro micrografting of selected Galician chestnut cultivars on chestnut hybrids (Castanea x coudercii). Dr. Juan Fernández-Lorenzo. USC. Spain.

In vitro establishment of chestnut clones of Martaínha variety. Dr. José Gomes Laranjo. UTAD. Portugal.


6th Session: Population Genetics and Landscape conservation
Chairperson: Dr. Jose Gomes Laranjo. UTAD. Portugal.

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Oral presentations

Evaluation of introgression of Asian germplasm into natural populations of Castanea sativa Mill. from southern Europe. Dr. Elena Cubera. UNEX. Spain.

Ascertainment of ancestry and parentage analysis of the parents and progeny of elite grower selections in the Eastern United States. Dr. Jeanne Romero-Severson. University of Notre Dame. USA.


Coffee Break


6th Session: Population Genetics and Landscape conservation

Best adapted chestnut trees to new environmental scenario for timber production at the Montseny Natural Park. Dr. Rut Sanchez Bragado. CTFC. Spain.


Contribution of ancient rootstocks to the genetic diversity of chestnut orchards in southern Spain. Dr. Angela Martín. UCO. Spain.

Genetic diversity of chestnut to water stress and tolerance to Phytophthora cinnamomi based on EST-SSR markers. Dr. Elena Cubera. UNEX. Spain.

Distribution of sweet chestnut (Castanea sativa mill.) in the Oltenia region, Romania. Dr. Sina Cosmulescu. University of Craiova. Romania.

7th Session: Chestnut Breeding
Chairperson: Dr. Luca Dondini. UNIBO. Italy.

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Oral presentations:

Backcross, transgenic, or both? Using logic models and data to decide on effective paths to evolutionary rescue of American chestnut. Dr. Jared Westbrook. The American Chestnut Foundation. USA.

Chestnut trees (Castanea sativa Mill.) for climate change. Dr. Alejandro Solla. UNEX. Spain.

Performance of ten elite Chinese Chestnut Cultivars in Replicated Trial over 16 years in Central Missouri. Dr. Dr. Nicholas Meier. Missouri University. USA.

Conservation of the Ozark chinquapin by applying biotechnology developed for American chestnut. Dr. Patrícia Fernandes. SUNY-ESF. USA.

Application of CRISPR/cas9 technology to chestnut breeding. Dr. Roberto Botta. UNITO. Italy.


Selection of new chestnut rootstocks. Dr. Fabrice Lheureux. France.


13:15 - 14:45


14:45 – 16:30
8th Session: Management or physiology
Chairperson: Dr. Burak Akyuz. OMU. Turkey.

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Oral presentations:

Microbial biostimulants tend to reduce chestnut trees mortality caused by chestnut rot and canker in nursery. Dr. François Lefort. University of Applied Sciences and Arts Western Switzerland. Switzerland.

Castanea sativa burr growth in its final stages. Dr. Giulio Demetrio Perulli. UNIBO. Italy.

Evaluation of commercial products for the control of Gnomoniopsis smithogilvyi and Cydia splendana in chestnut trees. Dr. Jose Laranjo. UTAD. Portugal.

Why are male-sterile chestnut trees more productive than male-fertile trees? Dr. Clement Larue. INRAE, UMR Biogeco. France.

The phenolic profile of different chestnut (Castanea sativa Mill.) accessions at different locations in Slovenia. Dr. Aljaz Medic. University of Ljubljana. Slovenia.

Impact of SiK in promotion of chestnut tolerance against Cryphonetria parasitica. Dr. Jose Gomes Laranjo. UTAD. Portugal.

European chestnut in Slovakia: overview of health condition and its cultivation for the future in the term of climate change. Ladislav Bakay. Slovak Academy of Sciences. Slovakia.

Artificial Neural Networks unravel the key factors influencing in vitro solid culture of Boletus reticulatus mycelium for chestnut mycorrhization. Dr. Pedro Pablo Gallego. UVIGO.


16:45 – 17:50
8th Session: Management or physiology
Chairperson: Dr. Gabriele Beccaro. UNITO. Italy.

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The effects of chestnut apical buds position on vegetative and reproductive annual growth. Dr. Giulio Demetrio Perulli. UNIBO. Italy.

Chestnut leaf and burr composting techniques as alternatives to burning. Dr. Gabriele Loris Beccaro. UNITO. Italy.

Effects of thermohidroterapy against Dryocosmus kuriphilus in dormant rooted Castanea sativa plants. Dr. Marta Ciordia. SERIDA. Spain.

Chestnuts are (entirely) insect-pollinated? Dr. Clement Larue. INRAE, UMR Biogeco. France.

Developmental anatomy and histochemistry reveal the neo-ontogenesis of the leaf tissues of Castanea mollissima (Fagaceae) towards the galls of Chestnut. Dr. Cancan Zhu. Institute of Botany, Jiangsu Province and Chinese Academy of Sciences. China.

Impact of the cooking process and chemical and enzymatic methods on the sensory characteristics of chestnut and, in consumer approval. Dr. Teresa Maria Pinto. UTAD. Portugal.

Silicon fertilization in chestnut plants: an efficient solution to ink disease. Dr. Laranjo. UTAD. Portugal.

Comparative growth and yield performance of sweet chestnut in high-forest and coppice systems in young plantations. Dr. Maria Sameiro Patrício. IPB. Portugal.

Metagenomic characterization of soil bacterial communities in young chestnut orchards in northern Portugal. Ermelinda Lopes Pereira. IPB. Portugal.

Late season irrigation improves chestnut physiology and nut quality. Dr. Giulio Demetrio Perulli. UNIBO. Italy

Application of commercial disinfectants to improve chestnut fruit sanitation. Ermelinda Lopes Pereira. IPB. Portugal.

Stem volume ratio equations to variable merchantable limits for sweet chestnut in Portugal. Dr. Maria Sameiro Patrício. IPB. Portugal.

Enhancing in vitro solid culture of B. edulis and B. reticulatus through elicitation with indoleacetic acid and oxalic acid. Dr. Pedro Pablo Gallego. UVIGO.


17:50 – 18:30
ISHS Young Minds Award:

The ISHS representative, together with the Convener, will set up a Special Committee to select the best oral and the best poster presentation, given by a junior scientist as presenter and first author of the work. Junior scientists should be enrolled in a university or college and can be undergraduate, graduate or postgraduate (limited to 6 months after finishing the program of study), and with an age limit of 35.

Business meeting:

Selecting the next convener


Gala dinner


June 29 Thursday

Field trips (check on the website):

Route to the giant chestnut trees, including traditional chestnut orchards (O Caurel).

Field Trip

Download International Chestnut Symposium program

Special Accommodation Offer

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