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OALib Journal期刊
ISSN: 2333-9721
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池塘浮游生物优势种组成与dna指纹的关系
DOI: 10.3724/SP.J.1145.2010.00672, PP. 672-677
Keywords: 浮游生物,优势种,遗传关系,rapd,dna指纹,多态性,池塘
Abstract:
研究中国地质大学（武汉）校区3个池塘7个样点浮游生物群落的优势种组成和dna指纹多态性.利用15种随机引物分别扩增，其中7种引物获得多态性片段.电泳共得到47条带，谱带平均多态率为96.4%.根据nei’s遗传距离矩阵构建3个池塘7个样点的遗传关系聚类树.通过优势种群组成聚类分析比较探讨浮游生物优势物种组成和dna指纹遗传关系聚类树结构的关系.结果表明，同一池塘样点的优势种组成和dna指纹遗传多样性相似性较高；西区池塘样点的优势种组成和遗传关系最近，其次是东区池塘的3个样点，差别最大的是北区池塘的两个样点.其原因可能是生境的隔离和差异.提示尽管池塘浮游生物优势种组成与dna指纹结构表示的遗传关系会存在较小差异，但是分析结果基本一致.因此，利用dna指纹技术研究池塘浮游生物生态学是可行的.图5表3参12
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