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Treasuring crop wild relative diversity: analysis of success from the seed collecting phase of the ‘Adapting Agriculture to Climate Change’ project
Genetic Resources and Crop Evolution ( IF 2 ) Pub Date : 2021-06-15 , DOI: 10.1007/s10722-021-01229-x
Jonas V. Müller , Christopher P. Cockel , Maraeva Gianella , Filippo Guzzon

The seed collecting phase of the ‘Adapting Agriculture to Climate Change’ project was, to the best of our knowledge, the most comprehensive crop wild relatives (CWR) collecting and conservation mission to-date and provides priceless genetic diversity for ongoing and future crop breeding efforts. The seed collecting started in 2013 and was concluded in 2019, it was carried out in 22 countries in Africa, Asia, the Americas and Europe, involving CWR taxa of 28 different crop genepools. 3002 target seed accessions of 242 taxa were collected and are currently stored long-term in the countries of collection and, in most of the cases, backed up at the Millennium Seed Bank (UK). Considering also non-target species, 3854 seed accessions were collected. For the genepools of bambara groundnut (Vigna subterranea (L.) Verdc.), barley (Hordeum L.), grass pea (Lathyrus sativus L.), sorghum (Sorghum bicolor (L.) Moench), and wheat (Triticum L.), the collecting phase was highly successful in terms of diversity of both, species and populations. Despite the overall success of the project, in our analysis we discovered several issues that were encountered in the seed collecting. In particular, comparing the initial collecting targets with the seed accessions effectively collected it emerges that: (1) some important crop genepools were characterized by a low collecting success (e.g. banana/plantain (Musa L.), potato (Solanum tuberosum L.), rice (Oryza L.), (2) genepool 1 (the most important for breeding efforts) of some crop genepools was under-collected (e.g. eggplant (Solanum L.) and sorghum), (3) some important centres of plant biodiversity (especially the Indian Subcontinent) were underrepresented in the seed collecting. This analysis can guide further collecting missions in order to fill gaps in the long-term conservation of CWR of great importance for crop improvement.



中文翻译:

珍惜作物野生相对多样性:“使农业适应气候变化”项目种子收集阶段的成功分析

据我们所知,“使农业适应气候变化”项目的种子收集阶段是迄今为止最全面的作物野生近缘种 (CWR) 收集和保护任务,为正在进行和未来的作物育种提供了无价的遗传多样性努力。种子收集工作于 2013 年开始,2019 年结束,在非洲、亚洲、美洲和欧洲的 22 个国家开展,涉及 28 个不同作物基因库的 CWR 分类群。收集了 242 个分类群的 3002 个目标种子种质,目前在收集国长期储存,在大多数情况下,备份在千年种子银行(英国)。还考虑到非目标物种,收集了 3854 份种子。对于班巴拉花生的基因库(Vigna subterranea(L.) Verdc.)、大麦 ( Hordeum L.)、草豌豆 ( Lathyrus sativus L.)、 高粱 ( Sorghum bicolor (L.) Moench) 和小麦 ( Triticum L.),收集阶段非常成功物种和种群的多样性。尽管该项目总体上取得了成功,但在我们的分析中,我们发现了种子收集过程中遇到的几个问题。特别是,将初始收集目标与有效收集的种子种质进行比较可以发现:(1)一些重要的作物基因库的特征是收集成功率低(例如香蕉/大蕉(Musa L.)、马铃薯(Solanum tuberosum L.) , 大米 ( OryzaL.),(2) 一些作物基因库(例如茄子 ( Solanum L.) 和高粱)的基因库 1(最重要的育种工作)收集不足,(3) 一些重要的植物生物多样性中心(尤其是印度次大陆)在种子收集中的代表性不足。该分析可以指导进一步的收集任务,以填补对作物改良具有重要意义的作物野生近缘种长期保护的空白。

更新日期:2021-06-15
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