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2006-2007年,对东南太平洋智利外海智利经济区内、外采集的3批智利竹筴鱼群体的线粒体DNA细胞色素b基因(Cytb)的部分序列进行了测定,对遗传关系进行了初步分析。在39个测序样本发现11个单倍型,其中一个为3个群体的共享单倍型。在730 bp的分析序列长度中,共有26个变异位点,其中2006、2007年经济外群体分别有3、22个变异位点,2006年经济区内群体没有变异位点;它们的单倍型多样性指数分别为0.330 9、0.640 5、0.000 0;核苷酸多样性指数分别为0.000 5、0.004 3、0.000 0。AMOVA分析表明:3个群体间不存在显著的遗传分化。邻接法(NJ)构建的系统关系树显示,经济区外与经济区内群体的所有个体聚成一个簇群,即经济区内、外的智利竹鱼来自于同一个种群。
In 2006-2007, partial sequences of mitochondrial DNA cytochrome b gene (Cytb) from three batches of Chilean mackerel collected from the Chilean Sea Economic Zone in the South-East Pacific Ocean were measured and their genetic relationships were analyzed. Eleven haplotypes were found in 39 sequenced samples, one of which was a shared haplotype of three populations. There were 26 variation sites in the length of 730 bp. Among them, there were 3,22 mutation sites in the economic population in 2006 and 2007, respectively, and there was no mutation in the population in the economic zone in 2006; their haplotype The diversity indexes were 0.330 9,0.640 5,0.000 0 respectively. The nucleotide diversity indexes were 0.000 5,0.004 3,0.000 0 respectively. AMOVA analysis showed that there was no significant genetic differentiation among the three populations. The phylogenetic tree constructed by the adjacency method (NJ) shows that all the individuals outside the economic zone and the economic zone are clustered together, that is, the bamboo fish from Chile and the outer zone within the economic zone come from the same population.