Towards a practical threat assessment methodology for crop landraces
Crop landraces (LR), the traditional varieties of crops that have been maintained for millennia by repeated cycles of planting, harvesting, and selection, are genetically diverse compared to more modern varieties and provide one of the key components for crop improvement due to the ease of trait tra...
| Autores principales: | , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
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Frontiers Media
2024
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| Acceso en línea: | https://hdl.handle.net/10568/139599 |
| _version_ | 1855526671238561792 |
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| author | Almeida, M.J. Barata, A.M. Haan, Stef de Joshi, B.K. Brehm, J.M. Yazbek, M. Maxted, N. |
| author_browse | Almeida, M.J. Barata, A.M. Brehm, J.M. Haan, Stef de Joshi, B.K. Maxted, N. Yazbek, M. |
| author_facet | Almeida, M.J. Barata, A.M. Haan, Stef de Joshi, B.K. Brehm, J.M. Yazbek, M. Maxted, N. |
| author_sort | Almeida, M.J. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Crop landraces (LR), the traditional varieties of crops that have been maintained for millennia by repeated cycles of planting, harvesting, and selection, are genetically diverse compared to more modern varieties and provide one of the key components for crop improvement due to the ease of trait transfer within the crop species. However, LR diversity is increasingly threatened with genetic erosion and extinction by replacement with improved cultivars, lack of incentives for farmers to maintain traditional agricultural systems, and rising threats from climate change. Their active conservation is necessary to maintain this critical resource. However, as there are hundreds of thousands of LR and millions of LR populations for crops globally, active conservation is complex and resource-intensive. To assist in implementation, it is useful to be able to prioritise LR for conservation action and an obvious means of prioritisation is based on relative threat assessment. There have been several attempts to propose LR threat assessment methods, but none thus far has been widely accepted or
applied. The aim of this paper is to present a novel, practical, standardised, and objective methodology for LR threat assessment derived from the widely applied IUCN Red Listing for wild species, involving the collation of time series information for LR population range, LR population trend, market, and farmer characteristics and LR context information. The collated information is compared to a set of threat criteria and an appropriate threat category is assigned to the LR when a threshold level is reached. The proposed methodology can be applied at national, regional, or global levels and any crop group. |
| format | Journal Article |
| id | CGSpace139599 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Frontiers Media |
| publisherStr | Frontiers Media |
| record_format | dspace |
| spelling | CGSpace1395992025-12-08T10:29:22Z Towards a practical threat assessment methodology for crop landraces Almeida, M.J. Barata, A.M. Haan, Stef de Joshi, B.K. Brehm, J.M. Yazbek, M. Maxted, N. resource conservation crops extinction genetic erosion plant genetic resources biodiversity landraces Crop landraces (LR), the traditional varieties of crops that have been maintained for millennia by repeated cycles of planting, harvesting, and selection, are genetically diverse compared to more modern varieties and provide one of the key components for crop improvement due to the ease of trait transfer within the crop species. However, LR diversity is increasingly threatened with genetic erosion and extinction by replacement with improved cultivars, lack of incentives for farmers to maintain traditional agricultural systems, and rising threats from climate change. Their active conservation is necessary to maintain this critical resource. However, as there are hundreds of thousands of LR and millions of LR populations for crops globally, active conservation is complex and resource-intensive. To assist in implementation, it is useful to be able to prioritise LR for conservation action and an obvious means of prioritisation is based on relative threat assessment. There have been several attempts to propose LR threat assessment methods, but none thus far has been widely accepted or applied. The aim of this paper is to present a novel, practical, standardised, and objective methodology for LR threat assessment derived from the widely applied IUCN Red Listing for wild species, involving the collation of time series information for LR population range, LR population trend, market, and farmer characteristics and LR context information. The collated information is compared to a set of threat criteria and an appropriate threat category is assigned to the LR when a threshold level is reached. The proposed methodology can be applied at national, regional, or global levels and any crop group. 2024-02-22 2024-02-22T18:54:21Z 2024-02-22T18:54:21Z Journal Article https://hdl.handle.net/10568/139599 en Open Access Frontiers Media Almeida, M.J.; Barata, A.M.; De Haan, S.; Joshi, B.K.; Brehm, J.M.; Yazbek, M.; Maxted, N. 2024. Towards a practical threat assessment methodology for crop landraces. Frontiers in Plant Science. ISSN 1664-462X. 13 p. DOI: 10.3389/fpls.2024.1336876 |
| spellingShingle | resource conservation crops extinction genetic erosion plant genetic resources biodiversity landraces Almeida, M.J. Barata, A.M. Haan, Stef de Joshi, B.K. Brehm, J.M. Yazbek, M. Maxted, N. Towards a practical threat assessment methodology for crop landraces |
| title | Towards a practical threat assessment methodology for crop landraces |
| title_full | Towards a practical threat assessment methodology for crop landraces |
| title_fullStr | Towards a practical threat assessment methodology for crop landraces |
| title_full_unstemmed | Towards a practical threat assessment methodology for crop landraces |
| title_short | Towards a practical threat assessment methodology for crop landraces |
| title_sort | towards a practical threat assessment methodology for crop landraces |
| topic | resource conservation crops extinction genetic erosion plant genetic resources biodiversity landraces |
| url | https://hdl.handle.net/10568/139599 |
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