中文摘要：

为研究中国沿海地区棘头梅童鱼群体的遗传多样性,利用微卫星标记技术,采用9对微卫星引物对中国连云港（LYG）、大丰（DF）、崇明（CM）、舟山（ZS）、温州（WZ）、宁德（ND）、厦门（XM）棘头梅童鱼7个野生群体的遗传多样性和遗传结构进行了分析。结果显示,实验检测到63个等位基因,各位点等位基因数为3～13个,有效等位基因数为1.7510～8.0317;各位点的观测杂合度（Ho）为0.3596～0.7854,期望杂合度（He）为0.4300～0.8780;多态信息含量（PIC）为0.3604～0.8631,其中有2个位点表现为中度多态（0.250.5）,具有较丰富的遗传多样性水平。Hardy-Weinber平衡分析显示,7个群体的大部分位点未偏离平衡。基于群体间Nei氏标准遗传距离构建的7个野生群体UPGMA系统进化树结果显示,ND和WZ群体遗传关系最近,ZS和WZ群体遗传关系最远,WZ和ND聚为一支,但总体上没有显著的遗传分化。

英文摘要：

In order to study the genetic diversity of Collichthys lucidus of Chinese coastal areas,microsatellite markers were used to analyze genetic diversity of seven wild C. lucidus populations（Lianyungang,Dafeng,Chongming,Zhoushan,Wenzhou,Ningde,Xiamen）. The results showed that the number of total alleles was 63 in the seven populations by nine microsatellite loci,and the mean number of alleles of every locus was 3 to 13. The average effect alleles ranged from 1.7510 to 8.0317. The average observed heterozygosity（Ho） ranged from 0.3596 to 0.7854,and the average expected heterozygosity（He） ranged from 0.4300 to 0.8780,and the average polymorphic information content（PIC） ranged from 0.3604–0.8631. Among them,2 loci showed moderate polymorphic,7 loci showed highly polymorphic. This showed that seven populations had high levels of genetic diversity. Most loci did not deviate from Hardy-Weinberg equilibrium（P〉0.05）. The UPGMA phylogenetic tree of the seven populations was constructed based on Nei＇s genetic distance. The result showed that the relationship between WZ and ND was the closest while the relationship between ZS and WZ was the farthest,WZ and ND clustered into one group,while there was no significant genetic differentiation as a whole.