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采用聚丙烯酰胺凝胶电泳技术,对文蛤5个北方种群进行了生化遗传分析。结果表明:文蛤5个天然种群的多态座位比例为0.475±0.064;平均杂合度为0.212±0.026,总体上遗传多样性较好,遗传变异水平较高。在各多态座位中有78.95%的座位符合Hardy-W e inberg平衡,有65.79%的座位d值为正,34.21%的座位为近交座位,存在近交,但近交程度不高。通过聚类分析可以初步判定,这5个群体同属于一个种,种群间由于地理隔离已形成了不同的地理种群。
The polyacrylamide gel electrophoresis technique was used to analyze the biochemical and genetic analysis of five northern populations. The results showed that the polymorphic loci of five natural populations were 0.475 ± 0.064 and the average heterozygosity was 0.212 ± 0.026. The overall genetic diversity was good and the genetic variation was high. In each polymorphic locus, 78.95% of the seats were in Hardy-Weinberg equilibrium, 65.79% of the seats had positive d values, 34.21% of the seats were inbred seats, and inbreds were present, but the degree of inbreeding was not high. Through cluster analysis, we can initially determine that these five groups belong to the same species, and different geographical populations have formed due to geographical isolation.