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Towards the Conservation of Crop Wild Relative Diversity in North Africa: Checklist, Prioritisation and Inventory Lala, Sami; Amri, Ahmed; Maxted, Nigel

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Towards the Conservation of Crop Wild Relative Diversity in North Africa: Checklist, Prioritisation and Inventory Lala, Sami; Amri, Ahmed; Maxted, Nigel View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by University of Birmingham Research Portal Towards the conservation of crop wild relative diversity in North Africa: checklist, prioritisation and inventory Lala, Sami; Amri, Ahmed; Maxted, Nigel DOI: 10.1007/s10722-017-0513-5 License: Creative Commons: Attribution (CC BY) Document Version Publisher's PDF, also known as Version of record Citation for published version (Harvard): Lala, S, Amri, A & Maxted, N 2017, 'Towards the conservation of crop wild relative diversity in North Africa: checklist, prioritisation and inventory', Genetic Resources and Crop Evolution, vol. 65, no. 1, pp. 113–124. https://doi.org/10.1007/s10722-017-0513-5 Link to publication on Research at Birmingham portal General rights Unless a licence is specified above, all rights (including copyright and moral rights) in this document are retained by the authors and/or the copyright holders. The express permission of the copyright holder must be obtained for any use of this material other than for purposes permitted by law. •Users may freely distribute the URL that is used to identify this publication. •Users may download and/or print one copy of the publication from the University of Birmingham research portal for the purpose of private study or non-commercial research. •User may use extracts from the document in line with the concept of ‘fair dealing’ under the Copyright, Designs and Patents Act 1988 (?) •Users may not further distribute the material nor use it for the purposes of commercial gain. Where a licence is displayed above, please note the terms and conditions of the licence govern your use of this document. When citing, please reference the published version. Take down policy While the University of Birmingham exercises care and attention in making items available there are rare occasions when an item has been uploaded in error or has been deemed to be commercially or otherwise sensitive. If you believe that this is the case for this document, please contact [email protected] providing details and we will remove access to the work immediately and investigate. Download date: 01. Feb. 2019 Genet Resour Crop Evol DOI 10.1007/s10722-017-0513-5 RESEARCH ARTICLE Towards the conservation of crop wild relative diversity in North Africa: checklist, prioritisation and inventory Sami Lala . Ahmed Amri . Nigel Maxted Received: 3 October 2016 / Accepted: 28 March 2017 Ó The Author(s) 2017. This article is an open access publication Abstract Crop wild relatives (CWR) are wild CWR Catalogue for Europe and the Mediterranean species that are more or less genetically related to (PGR Forum). Of which consists 76% of the flora of crops that can be used to introgress useful genes for North Africa. The checklist contains 5588 (*97%) improvement of productivity, resistance to biotic and native taxa and 192 introduced. Families with higher abiotic stresses and quality of cultivated crops. They taxa richness are Fabaceae, Asteraceae, and Poaceae. are important in crop improvement to achieve food These three families constitute more than 33% of the security for an increasing population and to overcome total taxa included in the checklist. About 9% (502) the challenges caused by climate change and the new CWR taxa identified as a priority for conservation in virulence of major diseases and pests. These genetic North Africa using four criteria, the economic value of resources are increasingly threatened in their natural the crop, the relatedness degree of wild relatives to habitats through over-exploitation and land reclama- their crop, threat status using IUCN red list assess- tion and degradation. Therefore, their efficient and ment, and finally the centre of origin and/or diversity effective conservation would be taxonomically and of the crop. Of these, 112 taxa were assigned high, 268 genetically valuable and will contribute to maintaining medium and 122 low priorities for effective conser- and promoting the sustainability of crop diversity, vation. Those assessed as threatened using IUCN Red facilitating agricultural production and supporting the list and national assessment represent approximately increasing demand for food, feed and natural 2% (119 taxa) of the CWR in the region. However, 21 resources. A checklist of 5780 Crop Wild Relatives taxa are assessed as critically endangered (CR), 53 as (CWR) taxa from North Africa was obtained using the endangered (EN), and 45 as vulnerable (VU). Wild relatives of some globally important crops are present, with those related to wheat (Triticum aestivum L. and Electronic supplementary material The online version of this article (doi:10.1007/s10722-017-0513-5) contains supple- T. durum L.) and barley (Hordeum vulgare L.) among mentary material, which is available to authorized users. the highest priority crops for the North Africa region. Amongst CWR assessed as threatened, only 8 (6.7%) & S. Lala ( ) Á N. Maxted CWR are related to food crops, Avena agadiriana B.R. School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK Baum. et G. Fedak (VU), A. atlantica B.R. Baum et G. e-mail: [email protected] Fedak (VU), A. murphyi Ladiz. (EN), Beta macro- carpa Guss. (EN), Olea europaea subsp. maroccana A. Amri Guss. (VU), Rorippa hayanica Maire (VU) and Genetic Resources Section in the International Centre for Agricultural Research in the Dry Areas (ICARDA), Aegilops bicornis (Forssk.) Jaub. et Spach (VU). The Rabat, Morocco wild relative of Safflower Carthamus glaucus M. Bieb 123 Genet Resour Crop Evol is restricted to Egypt and Libya and assessed as rare in Materials and methods Egypt. The information available about the conserva- tion and threat status of CWR in North Africa still lags A preliminary CWR checklist for North Africa was behind, and more investigations are required. extracted from CWR Catalogue of Europe and Mediterranean (http://www.pgrforum.org/) estab- Keywords Agrobiodiversity Á Checklist Á lished by PGR Forum (Kell et al. 2005; Kell et al. Conservation Á Crop wild relatives Á Inventory Á 2008) for the five countries in North Africa. This ini- Prioritisation Á North Africa tial checklist was then enhanced using information from USDA, ARS, Germplasm Resources Information Network (Gregory et al. 2009); the Harlan and de Wet Crop Wild Relative inventory (Vincent et al. 2013), Introduction the flora of Tunisia (Le Floch et al. 2010) and Flora of Libya (Jafri et al. 1976). The number of CWR in the North Africa is well-known as a hotspot of floristic checklist is relatively large, exceeding the available richness and endemism (Myers et al. 2000; Cincotta resources (human and financial) required for their et al. 2000), being part of the Mediterranean centre of conservation. Therefore, prioritising the checklist was diversity defined among the Vavilov centres of necessary for an effective and efficient conservation. origin/diversity of cultivated crops (Vavilov 1926; The prioritisation process used four criteria for Zeven and Zhukovsky 1975). Recent analysis has establishing immediate conservation priorities: the found it to be a centre of crop wild relative (CWR) relative economic value of the related crop, the actual diversity (Castan˜eda-A´ lvarez et al. 2016; Vincent or potential ease of use in crop breeding (i.e. Gene et al. 2013). CWR are wild species genetically related Pool and Taxon Group Concepts), relative threats to crops, including their progenitors. They are using IUCN red list assessment and centre of origin valuable genetic resources in developing new crop and/or diversity of the crop. Several authors suggested varieties capable of coping with the major biotic and these criteria as common criteria that could be used to abiotic stresses associated with climate change, prioritise CWR taxa and develop strategies for CWR because of the possibility to transfer these traits from conservation (e.g. Barazani et al. 2008; Ford-Lloyd the CWR to the related crop (Maxted et al. 2006). et al. 2008; Kell et al. 2012; Maxted et al. 1997). Several nationally and globally important crop The related crop value was obtained from genepools occur in the region, including many cereal FAOSTAT (http://faostat.fao.org/site/567/default. plants, food legumes, vegetables, forage crops, fruit aspx#ancor) for human food, animal forage and fod- trees and nut crops (IUCN–EGA 1996–1998; Zehni der, industrial and ornamental crops to establish the 2006). However, currently CWR species and genetic relative economic value of CWR for the five countries diversity are threatenedbygeneticerosionand in North Africa. Crops were identified using the crop extinction due to desertification, drought, agricul- category then value attributed using: (i) crop production tural development, urbanization, and habitat destruc- in tonnes, (ii) gross production value in the US $ and tion by overgrazing and forest clearing, plus the (iii) crop surface area of cultivation in hectares. The projected more considerably negative impact of gross production value of the crop was estimated using climatechange(Derneg˘i 2010; El-Beltagy 2006; a five-year period between 2009 and 2013. To establish UNU-WIDER 2011). Thus there is an urgent need for relative crop/CWR relatedness Gene Pool concept systematic CWR conservation in North Africa to (Harlan and de Wet 1971) and Taxon Group concept ensure their continued availability for contribution to (Maxted et al. 2006) were used as a proxy for the CWR the sustainable agricultural development and food ease of use in breeding programmes. Primarily focusing security. In this context, as a crucial first step to on CWR taxa in the primary gene pool (GP1B) and achieving this goal, the aim of this paper is to create a secondary gene pool, the coenospecies (GP2), but also regional CWR checklist, to prioritise the checklist including more remote tertiary gene pool (GP3) taxa if and produce a CWR inventory for North Africa they have previously been used in breeding.
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