云南泸定百合种质资源及表型多样性研究

Study on Germplasm Resources and Phenotypic Diversity of Lilium sargentiae in Yunnan

【目的】了解云南省境内的泸定百合资源状况。【方法】采用查阅文献和实地调查相结合,并对采集到的20个泸定百合野生居群进行表型多样性分析。【结果】泸定百合资源以滇东北昭通、滇东曲靖最丰富,滇中昆明、滇东南文山、滇南红河和滇西保山次之,滇西北地区最少,仅见于金沙江河谷地带,而滇西南地区普洱、临沧未见分布。泸定百合的14个表型性状居群间F值为2. 18～19. 10,差异均达到显著或极显著水平;平均表型分化系数为73. 58%,居群间变异(59. 5%)大于居群内变异(19. 76%)。20个野生居群在聚类树上可划分为2大支,未表现出明显的地理差异性。【结论】泸定百合在云南省境内分布范围广泛,表型遗传多样性丰富。

[ Objective] The aim of this research is to understand the status of germplasm resources of Lilium sargentiae in Yunnan province. [ Method] Field survey and literature review were adopted to research the status of germplasm resources of L. sargentiae, and the phenotypic diversity of 20 wild populations of L. sargentiae was analyzed. [ Result] The resources of L. sargentiae in Zhaotong and Qujing were the most abundant, followed by Kunming, Wenshan, Honghe and Baoshan, the Northwest Yunnan was the least and only seen in the valley of Jinsha river, there were no distribution in Pu-er and Lincang area. The F values of L. sargentiae＇ s 14 traits were from 2.18 to 19.10, which showed significant or quite significant differentiation among populations. The mean phenotypic differentiation coefficient was 73.58 % , and the variation anmng populations （59.5 % ） was higher than that within population （19.76 % ）. 20 wild populations in the clustering tree could be divided into 2 branches, and there was not obvious geographical difference. [ Conclusion] L. sargentiae is widely distributed in Yun- nan province, and it is rich in phenotypic genetic diversity.