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中国农学通报

中国农学通报 ›› 2019, Vol. 35 ›› Issue (30): 1-7.doi: 10.11924/j.issn.1000-6850.casb20190500159

所属专题： 资源与环境； 水稻

• 农学 农业基础科学 •    下一篇

引进水稻资源对野败型不育胞质恢复力的鉴定研究

邢运高, 陈庭木, 杨波, 孙志广, 徐波, 李健, 刘艳, 迟铭, 卢百关, 方兆伟, 王宝祥, 徐大勇   

  1. 江苏省连云港市农业科学院/江苏省现代作物生产协同创新中心
  • 收稿日期:2019-05-18 修回日期:2019-07-22 接受日期:2019-08-22 出版日期:2019-10-25 发布日期:2019-10-25
  • 通讯作者: 徐大勇
  • 基金资助:
    现代农业技术体系建设专项资金资助“高产优质安全高效水稻品种培育”(CARS-01-04B)；江苏省农业重大新品种创制“早熟优质抗稻瘟 病水稻新品种选育”(PZCZ201704)；连云港市财政专项“引进水稻种质对不同胞质不育系恢复力的鉴定研究”(QNJJ1811)，“Pi-ta、Pi-b、Pi-5、Pi-9 和Pikm 基因在黄淮稻区粳稻品种中的分布及对穂颈瘟抗性分析”(QNJJ1911)。

Restoring Ability of WA Type Male Sterile Cytoplasm: Identification with introduced rice germplasm resources

  • Received:2019-05-18 Revised:2019-07-22 Accepted:2019-08-22 Online:2019-10-25 Published:2019-10-25

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摘要： 旨在明确来自亚洲、欧洲、非洲、北美洲、南美洲共441份水稻种质的恢保关系和强恢种质分布地区，为高效选育恢复系、保持系提供优异亲本。用野败型细胞质雄性不育系‘明218A’为母本与外引种质测交配制441份测验种。以自然结实率为指标，鉴别恢保类型。鉴定出恢复型种质53份，保持型种质43份，半恢半保型种质333份。分析53份恢复种质的分布地区，结果表明来源于亚洲国家（地区）种质最多，达到了33份，占恢复种质的比例为62.3%；筛选出美国强恢种质6份，占来源美国种质31.6%；来源于欧洲种质仅2份，占来源于欧洲种质的比例为5%，欧洲恢复种质相对较少。对53份强恢种质测交F1与测交父本7个重要性状均值进行相关分析，其中株高(r=0.97**)、千粒重(r=0.934**)和穗长(r=0.747**)3个性状达极显著相关，而其余的4个性状的相关不显著。相关程度的大小顺序为：株高＞千粒重＞穗长＞有效穗＞穗总粒数＞穗实粒数＞自然结实率。野败型不育系强恢的种质5大洲都有分布，主要集中在亚洲的东亚、南亚、东南亚地区以及美国。恢复系的株高、千粒重以及穗长对杂交种F1的影响较大。

关键词: 高效液相色谱, 高效液相色谱, 元宝枫花, 黄酮

Abstract: In order to study the restoring or remaining characteristics and the distribution of restoring resources, 441 rice germplasm resources from Asia, Europe, Africa, North America and South America were detected through test crossing screening, which also would provide excellent parents for efficient breeding of restorer line or maintainer line. Using WA-CMS line ‘Ming 218A’as the female parent, 441 germplasm resources were selected as the tester. The restoring or remaining characteristics of the rice resources were identified by the natural seed setting rate, and the results showed that the number of resources with restoring ability, remaining ability and the middle type were 53, 43 and 333, respectively. According to the distribution of restoring varieties, there were 33 varieties from Asian countries (regions), accounting for 62.3% of restoring resources. 6 restorable varieties were from USA, accounting for 31.6% of USA germplasm resources ,which indicated that the USA germplasm resources contained more restorable varieties. Only 2 restorable varieties were identified from European, accounting for 5% of the European germplasm resources, which indicated that Europe had fewer restorable resources. Correlation analysis was carried out by the mean values of the seven important traits of F1 and the male parent, the plant height (r=0.97**), 1000-grains weight (r=0.934**) and panicle length (r=0.747**) had significant relationship with the male parent, while the other 4 traits were not significantly related with the male parent. The desending order of relevance was plant height, 1000-grains weight, panicle length, panicles of per plant, spikelets of per panicle, filled spikelets of per panicle, natural seed setting rate. In our study, resources with high restoring ability were distributed in all five continents, mainly in the East Asia, South Asia and Southeast Asia and USA. The plant height, 1000-grain weight and panicle length of the restorer line had more obvious effect on the hybrid F1.

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