| 基于mtCOI基因序列的我国云南省和缅甸、柬埔寨草地贪夜蛾种群遗传多样性分析 |
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| 引用本文：李向永,尹艳琼,KHIN Thein Nyunt,KHAY Sathya,刘莹,谌爱东.基于mtCOI基因序列的我国云南省和缅甸、柬埔寨草地贪夜蛾种群遗传多样性分析.植物保护学报,2020,47(4):789-796 |
| DOI：10.13802/j.cnki.zwbhxb.2020.2020815 |
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| 中文摘要:为制定有效的草地贪夜蛾防控措施，分别自缅甸、柬埔寨和我国云南省采集4、2和8个种群共542个草地贪夜蛾样品，基于mtCOI基因序列分析这14个种群的遗传多样性指数、遗传分化系数及基因流。结果表明，缅甸草地贪夜蛾种群的单倍型多样性指数和平均核苷酸差异数分别介于0.273~0.396和4.643~6.727之间，高于我国云南省的草地贪夜蛾种群，分别介于0.047~0.214和0.791~3.636之间；除ZT种群、LS种群和TO种群外，其它11个种群的Fu’s F均为显著正值，表明缅甸、柬埔寨和我国云南省的草地贪夜蛾种群未经历种群扩张事件；在14个种群中，LS种群与其它种群分化较明显，TK种群、MY种群、CP种群、MS种群和KY种群有效迁入个数和有效迁出个数之和较高，分别为699.41、682.50、855.76、684.56和701.31，推测这5个种群在草地贪夜蛾基因交流中起着类似“中转站”的作用。 |
| 中文关键词:草地贪夜蛾 mtCOI基因 种群遗传多样性 遗传分化 基因流 |
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| Analysis on population genetic diversity of fall armyworm Spodoptera frugiperda in Yunnan Province, China, Myanmar and Cambodia based on mtCOI gene sequence |
| Author Name | Affiliation | E-mail | | LI Xiangyong | Institute of Agricultural Resources and Environment, Yunnan Academy of Agricultural Sciences, Kunming 650205, Yunnan Province, China | | | YIN Yanqiong | Institute of Agricultural Resources and Environment, Yunnan Academy of Agricultural Sciences, Kunming 650205, Yunnan Province, China | | | KHIN Thein Nyunt | Department of Agricultural Research, Ministry of Agriculture, Livestock and Irrigation, Naypyitaw 15013, Myanmar | | | KHAY Sathya | Plant Protection Division, Cambodian Agricultural Research and Development Institute, Phnom Penh 12002, Cambodia | | | LIU Ying | Institute of Agricultural Resources and Environment, Yunnan Academy of Agricultural Sciences, Kunming 650205, Yunnan Province, China | | | CHEN Aidong | Institute of Agricultural Resources and Environment, Yunnan Academy of Agricultural Sciences, Kunming 650205, Yunnan Province, China | shenad68@163.com |
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| Abstract:In order to provide scientific guidance for effective management of fall armyworm Spodoptera frugiperda in Yunnan Province, the population genetic diversity, genetic differentiation coefficient and gene flow of 542 samples were analyzed based on mtCOI gene, which four populations collected from Myanmar, two populations from Cambodia and eight populations from Yunnan Province. The results showed that the haplotype diversity index of Myanmar population (0.273-0.396) was higher than that of Yunnan population (0.047-0.214), and the average number of nucleotide differences of Myanmar population (4.643-6.727) was higher than that of Yunnan population (0.791-3.636). In 11 populations, the value of Fu’s F test was significantly positive indicated that there were no recent population expansion events in Myanmar, Cambodia and Yunnan. In 14 populations, there was genetic differentiation between population LS and other populations, the effective migration numbers of population TK, MY, CP, MS, and KY, were 699.41, 682.50, 855.76, 684.56 and 701.31, respectively, it showed that those populations maybe play an important role of “transfer station” in gene flow of fall armyworm. |
| keywords:Spodoptera frugiperda mtCOI gene population genetic diversity genetic differentiation gene flow |
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