海南野生稻白叶枯病抗性种质资源的收集与初步鉴定
作者:
作者单位:

1.中国农业科学院作物科学研究所;2.沈阳师范大学生命科学学院;3.海南省农业科学院粮食作物研究所

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基金项目:

国家重点研发计划(2021YFD1200101);科技创新工程(2060299-2);基本科研业务费专项(S2022NF01)


Collection and Preliminary Identification of Germplasm Resources Resistant to Bacterial Blight of Wild Rice from Hainan Province
Author:
Affiliation:

1.Institute of Crop Sciences, Chinese Academy of Agricultural Sciences;2.College of Life Sciences, Shenyang Normal University;3.Institute of Grain Crops, Hainan Academy of Agricultural Sciences

Fund Project:

National key R&D Program of China (2021YFD1200101),Science and technology innovation project (2060299-2),Basic scientific research business (S2022NF01)

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    摘要:

    为抢救性收集和保护海南省野生稻资源,2021年11月中国农业科学院作物科学研究所与海南省农业科学院粮食作物研究所联合开展了海南省野生稻调查、异位保护及白叶枯病抗性鉴定工作。本研究对海南省原记载的11个县市中17个乡镇21个野生稻分布点进行考察,发现原分布点中7个分布点处于极度濒危状态,6个分布点遭受到不同程度破坏,并发现3个新的野生稻分布点。抢救性收集野生稻资源239份,统一保存于国家野生稻种质圃。同时,本研究使用毒性强、致病性广的白叶枯病菲律宾致病小种6(PXO99),采用人工接种的方式对本次考察收集的145份普通野生稻和47份药用野生稻进行白叶枯病抗性鉴定,最终筛选出5份高抗白叶枯病的野生稻种质资源,为水稻抗白叶枯病的研究和育种奠定了丰富的材料基础。

    Abstract:

    In order to salvage and protect wild rice resources in Hainan Province, P.R. China, in November 2021, the Institute of Crop Science, Chinese Academy of Agricultural Sciences in cooperation with the Institute of Grain Crops, Hainan Academy of Agricultural Sciences carried out the investigation, ectopic protection and bacterial blight resistance of wild rice. This study investigated 21 wild rice distribution sites in 17 towns of 11 cities/counties which were previously recorded in Hainan province. Out of them, seven distribution sites were critically endangered, 6 distribution sites suffered with degrees of damage. Three new distribution sites of wild rice were found. 239 wild rice resources were collected and preserved in the National Wild Rice Germplasm Garden. In addition, the Philippine race 6 (PXO99), which is highly aggressive with broad pathogenicity, was tested using artificial inoculation for bacterial blight resistance in this collection of 145 O. rufipogon Griff. and 47 O. officinalis Wally. Five accessions showing high resistance to bacterial blight were identified, which laid a rich material foundation for the research and breeding of resistance to bacterial blight in rice.

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历史
  • 收稿日期:2022-08-30
  • 最后修改日期:2022-09-23
  • 录用日期:2022-10-14
  • 在线发布日期: 2022-10-21
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