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  • 任奎,唐宇,范昱,等.中国西部六省(区)荞麦属稀有种质资源收集与分类鉴定[J].植物遗传资源学报,2021,22(4):963-970.    [点击复制]
  • ,et al.Collection and Identification of Rare Germplasm Resources of the Genus Fagopyrum Mill. in Six Provinces of China[J].植物遗传资源学报,2021,22(4):963-970.   [点击复制]
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中国西部六省(区)荞麦属稀有种质资源收集与分类鉴定
任奎1,2, 唐宇3, 范昱1, 李伟1, 赖弟利1, 严明理2, 张凯旋1, 周美亮1
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(1.中国农业科学院作物科学研究所;2.湖南科技大学生命科学学院;3.四川旅游学院食品学院)
摘要:
中国西南地区是国际公认的荞麦起源地,其复杂的地理环境和多样的气候类型孕育了丰富的野生荞麦资源。部分西北地区因拥有相似的生态环境气候,也有大量的野生荞麦分布,形成极具地域特色的民族植物资源群体,是中国荞麦现代育种的重要依托。为探明中国野生荞麦属植物的分布现状,抢救性收集野生荞麦种质资源,全国野生荞麦资源普查与收集行动自 2016 年起深入中国西部 6 个省(区),42 个县(市、区)进行了系统考察,采集野生荞麦种质资源 1014 份。根据表型鉴定进行分类研究,并对中国荞麦属植物的分类进行了修订。结果表明,收集的资源包括荞麦属 21 个种的稀有材料(含 1 个新种Fagopyrum longistylum),各个荞麦野生种间具有丰富的遗传多样性,多个稀有野生种存在独特的性状变异或优良品质。这些稀有的种质资源作为珍贵的基因库,为荞麦的产量和品质改良提供宝贵的材料基础。该研究不仅能够促进荞麦属的分类与进化研究,在遗传育种、优质基因发掘、植物资源保护等方面均具有重要意义。
关键词:  荞麦属  收集  分类  稀有种质资源
DOI:10.13430/j.cnki.jpgr.20201224001
投稿时间:2020-12-24修订日期:2021-02-19
基金项目:国家重点研发计划中欧政府间合作项目(2017YFE0117600);澜湄四国荞麦生态综合利用技术开发与示范推广项目;第三次全国农作物种质资源普查与收集行动
Collection and Identification of Rare Germplasm Resources of the Genus Fagopyrum Mill. in Six Provinces of China
Abstract:
Southwestern China is internationally recognized as the origin of Fagopyrum Mill.,and its complex geographical environment and diverse climate types breed abundant wild buckwheat resources. Due to the similar ecological environment and climate,there are also a large number of wild buckwheat in some northwestern regions,contributing to a famous ethnic plant resource group with regional characteristics,which is an important basis for modern buckwheat breeding in China. In order to find out the distribution status of wild buckwheat in China and rescue the collection of wild buckwheat germplasm resources,the national survey and collection of wild buckwheat resources has been carried out since 2016 and 1014 wild buckwheat germplasm resources were collected in 6 provinces(autonomous regions) containing 42 counties(cities,districts) of western China. The phenotypic identification was performed and the classification of Fagopyrum in China was revised. The results showed that our collection included 21 species of Fagopyrum Mill.,containing a new species Fagopyrum longistylum. There are abundant genetic diversity among different wild buckwheat species,and many rare wild buckwheat species have unique character variation or excellent quality. These rare germplasm resources contain valuable gene pool,which provides valuable material basis for the yield and quality improvement of buckwheat. This study is of great significance not only to promote the classification and evolution of buckwheat, but also in crop genetic breeding,high-quality gene exploration and plant resource protection.
Key words:  Fagopyrum Mill.  collection  classification  rare germplasm resources

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