Identification and characterisation of the traditional varieties of chestnut (castanea sativa mill.) in Valle del Jerte, Valle del Ambroz, La Vera and Valencia de Alcántara regions
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[1] Universidad de Extremadura
Universidad de Extremadura
Badajoz, España
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- Localización: XI young researchers meeting on conservation and sustainable use of forest systems / coord. por Elena Hidalgo Rodríguez, Francisco Javier Dorado Reyes, Ainhoa Iñiguez Soto, Diego A. Damián Carrión, Samuel Gato Martín, Guillermo Jové Alcalde, Raúl Arcadio Fernández González, 2017, ISBN 978-84-617-9574-1, pág. 26
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
Agrobiodiversity is defined as biodiversity within farming and its reduction implicates the loss of species or cultivated varieties. In Extremadura, Castanea sativa Mill. is considered an agroenvironmental species given that its maintenance produces goods such as fruit, wood, honey, mushrooms and environmental values, which help to sustain rural population. Nevertheless, thereare serious threats over this species such as the abandonment of the crop due to its low profitability, the introduction of foreign material without previous evaluation, or the replacement and/or elimination of the traditional varieties. The objective of this project consists of thedescription of chestnut genetic resources from Valle del Jerte, Valle del Ambroz, La Vera and Valencia de Alcántara regions through the identification and characterisation of the traditional varieties in these areas. One hundred grafted chestnut trees corresponding to 30 traditional denominations have been analysed using qualitative morphological traits and simple sequence repeat (SSRs) markers. The combination of these two types of markers has allowed us to identify 28 varieties, 22 of which are local varieties and six have proved to be interspecific hybrids between C. sativa and C. crenata. Moreover, five cases of homonymies and two of synonymies were detected. As a result, this project has stated that chestnut traditional systems in these areas and its management favor a high level of genetic diversity and local distribution, and constitute on farm conservation units.
