福建农业科学院水稻研究所,福州 350018
福建省科技计划项目—省属公益类科研院所基本科研专项(2017R1021-4);福建省农业科学院科技创新团队项目(STIT2017-1-1)
Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350018
Basic research project of provincial Scientific Research Institution(2017R1021-4); Scientific and Technical Innovation Group of Fujian Academy of Agricultural Sciences(STIT2017-1-1)
本研究对 45 份福建漳浦野生稻的 43 个农艺性状进行质量和数量性状的遗传多样性、相关性和聚类分析。结果表明:(1)漳浦野生稻具有丰富的遗传多样性,有 22 个质量性状均出现不同程度的分化,其遗传多样性指数范围为 0.245-1.430,其中叶色的遗传多样性指数最高;12 个数量性状的遗传多样性指数范围为 1.86-2.06,其中茎秆长度的遗传多样性指数最高,表明该性状遗传多样性最丰富,可作为特异性资源利用。(2)12 个数量性状间的相关性分析发现,穗长度与剑叶叶舌长度、倒二叶叶舌长度、剑叶长度和剑叶宽度均呈极显著正相关;百粒重与开花时间、芒长呈极显著正相关。(3)45 份漳浦野生稻可聚类为Ⅰ、Ⅱ、Ⅲ、Ⅳ和Ⅴ共 5 个类群,其中第Ⅴ群仅 1 份,为 M2042。
The genetic diversity analysis of 43 agronomic traits was carried out in 45 Zhangpu wild rice germplasms in Fujian Province. The results showed that Zhangpu wild rice represented abundant genetic diversity. 22 of 31 qualitative agronomic traits were found with the variability of genetic differentiation. The genetic diversity indices ranged from 0.245 to 1.43, and the index of leaf color was the highest. The genetic diversity indices of 12 quantitative agronomic traits ranged from 1.86 to 2.06, of which the index of stem length was the highest, indicating that stem length possesses the most abundant genetic diversity. By correlation analysis among 12 quantitative traits, the panicle length represented closely significant positive correlation with the ligule length of flag leaf and the second top leaf, the length and width of flag leaf. 100-grain weight was found to be significant positive correlation with the flowering time and awn length. These materials were clustered into five groups: I, II, III, IV and V, of which the group V was M2042 alone.
江川,朱业宝,陈立喆,等.漳浦野生稻农艺性状的遗传多样性分析及稻瘟病抗性评价[J].植物遗传资源学报,2019,20(5):1170-1177.
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