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中国生物防治学报 ›› 2015, Vol. 31 ›› Issue (6): 836-844.DOI: 10.16409/j.cnki.2095-039x.2015.06.004

• 研究论文 • 上一篇    下一篇

吉林省球孢白僵菌遗传多样性与亚洲玉米螟化性相关性分析

张正坤1, 孟鑫睿2, 张佳诗1, 徐文静1, 李启云1, 冯树丹2   

  1. 1. 吉林省农业科学院植物保护研究所/吉林省农业微生物重点实验室/农业部东北作物有害生物综合治理重点实验室, 公主岭 136100;
    2. 哈尔滨师范大学生命科学与技术学院, 哈尔滨 150025
  • 收稿日期:2015-07-17 出版日期:2015-12-08 发布日期:2015-12-17
  • 通讯作者: 李启云, 冯树丹
  • 作者简介:张正坤(1980-),男,博士,副研究员,E-mail:zhangzhengkun1980@126.com
  • 基金资助:
    吉林省科技厅国际科技合作(20110751);吉林省科技厅青年基金(20130522080JH)

Correlation Analysis between Genetic Diversity of Beauveria bassiana and Voltinism Types of Asian Corn Borer in Jilin Province

ZHANG Zhengkun1, MENG Xinrui2, ZHANG Jiashi1, XU Wenjing1, LI Qiyun1, FENG Shudan2   

  1. 1. Jilin Key Laboratory of Agricultural Microbiology/Key Laboratory of Integrated Pest Management on Crops in Northeast, Ministry of Agriculture/Institute of Plant Protection, Jilin Academy of Agriculture Sciences, Gongzhuling 136100, China;
    2. College of Life Sciences and Technology, Harbin Normal University, Harbin 150025, China
  • Received:2015-07-17 Online:2015-12-08 Published:2015-12-17

摘要: 利用ITS序列分析和ISSR分子标记对吉林省玉米主产区的49株寄生亚洲玉米螟的球孢白僵菌进行了遗传多样性分析。ITS序列分析表明,各菌株间的亲缘关系与其地理来源无关。分别根据9个采集地,以及寄主化性类型划分供试菌株类群,利用ISSR分子标记技术进一步分析表明,不同地理类群中榆树地区的遗传多样性最高,双辽地区最低;双辽和通化地区间的遗传分化系数最高,梨树和通化地区间的遗传距离最大。根据寄主化性类型划分类群得出一代玉米螟分离菌株遗传多样性指数最高,一代兼二代区最低;一代兼二代区菌株遗传分化系数最高,而一代区和二代区的遗传距离最大。由此可见,吉林省球孢白僵菌遗传多样性水平较高,种群的异质性较强,遗传多样性同地理位置无关,与寄主化性类型存在相关性。

关键词: 球孢白僵菌, 遗传多样性, 亚洲玉米螟, 化性, 简单重复序列区间

Abstract: ITS sequence analysis and inter-simple sequence repeat (ISSR) technique was used to analyze genetic diversity of forty-nine isolates of Beauveria bassiana isolated from Ostrinia furnacalis (Guenée) in different maize producing areas in Jilin Province. ITS sequence analysis showed no correlation between genetic relationship and geographical origin among all tested strains. Nine subpopulations was divided for further analysis by ISSR assay according to collection sites, the results indicated the highest genetic diversity index in Yushu strain and the lowest in Shuangliao strain. The highest genetic differentiation coefficient (Gst) was between Shuangliao and Tonghua, and the maximum genetic distance was between Lishu and Tonghua. Three subpopulations were divided for ISSR analysis according to host voltinism types, the results showed the highest genetic diversity index in strains isolated from first generation subpopulation and the lowest genetic diversity index and Gst in mixed type of first/second subgeneration host population and the maximum genetic distance between the first and the second generation subpopulation. In conclusion, the B. bassiana isolated from Asian corn borer in Jilin Province had high genetic diversity and population heterogeneity, the genetic diversity was related with host voltinism while not with geographical origin.

Key words: Beauveria bassiana, genetic diversity, Ostrinia furnacalis, voltinism types, ISSR

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