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Progress of the Research on the Conservation of Crop Germplasm Resources in China

机译：中国作物种质资源保护研究进展

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In the last 20 years, China has made considerable achievements in the conservation of crop germplasm resources. A network for crop germplasm conservation has been established by the end of 2002, which includes a national long-term seed genebank and its duplicated genebank, 8 national medium-term seed genebanks, 30 national field genebanks, 2 national in vitro genebanks, and 3 in situ conservation sites including 1 for wild soybean and 2 for wild rice. More than 334 000 crop germplasm accessions are currently stored in the national long-term genebank, covering 35 families, 192 genera and 712 species, which rank in the first place in the world. More than 43 000 accessions of vegetatively propagated crops and perennial crops covering more than 900 species are conserved in the national field genebanks. In addition, 2 300 accessions are stored in the national in vitro genebanks. This paper reviewed the latest advances of techniques for safety preservation of stored germplasm in seed genebank, ultra-dried seed storage and in vitro preservation in China and discussed current highlights in germplasm conservation.
机译：在过去的20年中，中国在保护作物种质资源方面取得了可观的成就。到2002年底，已经建立了一个作物种质资源保存网络，其中包括一个国家长期种子基因库及其重复的基因库，8个国家中期种子基因库，30个国家田间基因库，2个国家体外基因库和3个国家现场保护地点，其中1个是野生大豆，2个是野生稻。目前，国家长期种质库中保存着超过33.4万种作物种质，覆盖35个科，192个属和712个物种，位居世界首位。在国家田间种质库中保存了超过43 000种无性繁殖作物和多年生作物，涵盖900多种物种。此外，国家体外基因库中还保存了2 300种材料。本文综述了中国种子种质库中种质安全保存，超干种子保存和离体保存的最新技术进展，并探讨了种质资源保存的最新趋势。

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