Log traceability and supply-chain verification by DNA markers in Fagus sylvatica L. in Italy
Verifying the match of a timber log with its population of origin represents a meaningful improvement for the preservation and valorisation of the wood chain. In this study, we tested the applicability of the molecular approach for tracing the supply chain of timber of European beech (Fagus sylvat...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria - Research Centre for Forestry and Wood
2022-12-01
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| Series: | Annals of Silvicultural Research |
| Subjects: | |
| Online Access: | https://journals-crea.4science.it/index.php/asr/article/view/2408 |
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| Summary: | Verifying the match of a timber log with its population of origin represents a meaningful improvement for the preservation and valorisation of the wood chain.
In this study, we tested the applicability of the molecular approach for tracing the supply chain of timber of European beech (Fagus sylvatica L.) to check if the declared source of timber truly complied with the declared origin.
Samples were collected in four sawmills and in the declared forest standing populations. Different assignment tests for the “unknown” timber were used. Ordination pattern and STRUCTURE analyses identified three clusters and one case of mismatch between the analysed wood and the declared source. The Bayesian method (GeneClass2) and the machine learning approach (AssignPop) assigned 42-72% of the cases to the proper source, with higher uncertainty in one site.
This study permitted to detect the lack of congruence of the declared wood source with the actual logging site by DNA markers, screening sampling reference populations (standing trees) and timber from sawmills. Thus, the application of DNA markers confirmed to be able to find failure in the wood supply chain. This application could act as a benchmark to further develop an independent supply-chain verification system that should be implemented as part of the inventory process.
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| ISSN: | 2284-354X |