| 引致蝉若虫地方病的蝉棒束孢种群遗传结构 |
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| 引用本文： | 张胜利,于士军,栾丰刚,蒲顺昌,陈雪,李增智.引致蝉若虫地方病的蝉棒束孢种群遗传结构[J].生态学杂志,2017,28(5):1679-1686. |
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| 作者姓名： | 张胜利 于士军 栾丰刚 蒲顺昌 陈雪 李增智 |
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| 作者单位： | 1.亳州学院生物工程研究所, 安徽亳州 236800;;2.安徽农业大学微生物防治省重点实验室, 合肥 230036;;3.滁州学院, 安徽滁州 239000;;4.江西农业大学林学院, 南昌 330045 |
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| 基金项目： | 本文由安徽省高校自然科学基金项目(KJ2016A491)和国家级星火计划项目(2015GA710033)资助 |
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| 摘 要： | 采用ISSR分子标记技术对在3个不同地区引起蝉若虫地方病的蝉棒束孢种群遗传结构进行研究.结果表明: 3个地方病种群均表现出较高的遗传多样性,其中敬亭山种群的遗传多样性最高,石台种群最小.UPGMA聚类分析表明,不同地方病种群无优势性,均为多系的异质种群,遗传谱系与地理来源无关.敬亭山不同采集时间的菌株表现出明显的时间异质性.种群(亚种群)间的遗传分化系数Gst为0.2153,而基因流Nm为0.9110(Nm＜1), 暗示低水平的基因交流是种群内遗传变异的主要原因之一.因此,蝉棒束孢种群水平的高异质性和低优势性是维持蝉若虫地方病的遗传结构特征.
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| 关 键 词： | 蝉花 地方病 ISSR 遗传结构 |
| 收稿时间： | 2016-09-11 |
Population genetic structure of Isaria cicadae causing enzootic of cicadas nymphs |
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| ZHANG Sheng-li,YU Shi-jun,LUAN Feng-gang,PU Shun-chang,CHEN Xue,LI Zeng-zhi.Population genetic structure of Isaria cicadae causing enzootic of cicadas nymphs[J].Chinese Journal of Ecology,2017,28(5):1679-1686. |
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| Authors: | ZHANG Sheng-li YU Shi-jun LUAN Feng-gang PU Shun-chang CHEN Xue LI Zeng-zhi |
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| Institution: | 1.Institute of Biological Engineering, Bozhou College, Bozhou 236800, Anhui, China;;2.Anhui Province Key Laboratory of Microbial Control, Anhui Agricultural University, Hefei 230036, China;;3.Chuzhou College, Chuzhou 239000, Anhui, China;;4.College of Forestry, Jiangxi Agricultural University, Nanchang 330045, China |
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| Abstract: | The population genetic structure of Isaria cicadae, which caused enzootic of cicadas nymphs in three regions, was analyzed by ISSR marker. The results showed that all three enzootic populations showed high genetic diversity with the highest in the Jingtingshan population and the lowest in the Shitai population. The UPGMA clustering analysis revealed that different enzootic populations did not have a predominant lineage but were polyphyletic and heterogeneous. Genetic lineages had nothing to do with geographical origin. However, two subpopulations of Jingtingshan from different sampling periods were gathered into different clades, which exhibited remarkable temporal heterogeneity. The genetic differentiation (Gst) among populations (subpopulations) was 0.2153 and the gene flow was low at 0.9110 (Nm＜1), which indicated the low gene flow was one of the main reasons for the genetic variation in the population. Therefore, high heterogeneity and low dominance might be genetic structure characteristics of I. cicadae population causing enzootic of cicada nymphs. |
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| Keywords: | Isaria cicadae enzootic ISSR genetic structure |
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