• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Genetic Resources and Crop Evolution >Towards the conservation of crop wild relative diversity in North Africa: checklist, prioritisation and inventory
【24h】

Towards the conservation of crop wild relative diversity in North Africa: checklist, prioritisation and inventory

机译：朝向北非作物野生相对多样性的保护：清单，优先级和库存

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Crop wild relatives (CWR) are wild species that are more or less genetically related to crops that can be used to introgress useful genes for improvement of productivity, resistance to biotic and abiotic stresses and quality of cultivated crops. They are important in crop improvement to achieve food security for an increasing population and to overcome the challenges caused by climate change and the new virulence of major diseases and pests. These genetic resources are increasingly threatened in their natural habitats through over-exploitation and land reclamation and degradation. Therefore, their efficient and effective conservation would be taxonomically and genetically valuable and will contribute to maintaining and promoting the sustainability of crop diversity, facilitating agricultural production and supporting the increasing demand for food, feed and natural resources. A checklist of 5780 Crop Wild Relatives (CWR) taxa from North Africa was obtained using the CWR Catalogue for Europe and the Mediterranean (PGR Forum). Of which consists 76% of the flora of North Africa. The checklist contains 5588 (similar to 97%) native taxa and 192 introduced. Families with higher taxa richness are Fabaceae, Asteraceae, and Poaceae. These three families constitute more than 33% of the total taxa included in the checklist. About 9% (502) CWR taxa identified as a priority for conservation in North Africa using four criteria, the economic value of the crop, the relatedness degree of wild relatives to their crop, threat status using IUCN red list assessment, and finally the centre of origin and/or diversity of the crop. Of these, 112 taxa were assigned high, 268 medium and 122 low priorities for effective conservation. Those assessed as threatened using IUCN Red list and national assessment represent approximately 2% (119 taxa) of the CWR in the region. However, 21 taxa are assessed as critically endangered (CR), 53 as 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 T. durum L.) and barley (Hordeum vulgare L.) among the highest priority crops for the North Africa region. Amongst CWR assessed as threatened, only 8 (6.7%) CWR are related to food crops, Avena agadiriana B.R. Baum. et G. Fedak (VU), A. atlantica B.R. Baum et G. Fedak (VU), A. murphyi Ladiz. (EN), Beta macrocarpa Guss. (EN), Olea europaea subsp. maroccana Guss. (VU), Rorippa hayanica Maire (VU) and Aegilops bicornis (Forssk.) Jaub. et Spach (VU). The wild relative of Safflower Carthamus glaucus M. Bieb is restricted to Egypt and Libya and assessed as rare in Egypt. The information available about the conservation and threat status of CWR in North Africa still lags behind, and more investigations are required.
机译：作物野生亲属（CWR）是野生物种，或多或少地与农作物有关，可用于改善有用基因以改善生产力，抗生物和非生物胁迫和栽培作物的质量。它们在作物改善方面很重要，以实现人口越来越多的粮食安全，并克服气候变化引起的挑战以及主要疾病和害虫的新毒力。这些遗传资源通过过度剥削和陆地回收和降解越来越受到自然栖息地威胁。因此，他们的高效和有效的保护将是分类和基因上的有价值，并将有助于维持和促进作物多样性的可持续性，促进农业生产，并支持对食品，饲料和自然资源的日益增长的需求。使用欧洲和地中海（PGR Firuar）的CWR目录获得北非5780作物野生亲属（CWR）分类群的清单。其中包含76％的北非植物群。清单包含5588（类似于97％）本机分类群和192次引入。具有较高分类群的家庭是Fabaceae，Asteraceae和Poaceae。这三个家庭构成了清单中包含的总征集总数的33％以上。大约9％（502）CWR分类群被确定为北非保护的优先权，使用四个标准，作物的经济价值，野生亲属与其作物的相关程度，威胁状态使用IUCN红色列表评估，最后是中心作物的起源和/或多样性。其中，112个分类群分配高，268个中等和122个低优先事项，以获得有效保护。根据IUCN Red List和国家评估评估的那些评估的人数占该地区CWR的约2％（119个分类）。然而，21个分类群被评估为危险（CR），53，濒危（ZH），45个作为脆弱（VU）。存在一些全球重要作物的野生亲属，存在与小麦（Triticum Aestivum L.和T.Durum L.）和大麦（Hordeum Vulgare L.）相关的那些北非地区的最高优先作物。在评估为受威胁的CWR中，只有8（6.7％）CWR与食物作物有关，Avena Agadiriana B.R.鲍姆。 ET G. Fedak（VU），A.Atlantica B.R. Baum et G. Fedak（VU），A. Murphyi Ladiz。 （en），Beta Macrocarpa Guss。 （Zh），Olea Europaea亚木。 Maroccana Guss。 （vu），Rorippa Hayanica Maire（VU）和Aegilops Bicornis（Forssk。）Jaub。 ET ShaCH（VU）。红花冠状动脉甘蓝芥末菌的野生亲戚BIEB仅限于埃及和利比亚，并在埃及评估为罕见。关于北非CWR的保护和威胁状态的信息仍然落后，并且需要更多的调查。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号