广东雷州地区3种滨珊瑚系统发生关系的研究Phylogenetic Relationships of Poritidae in Leizhou Based on12S rRNA Sequences
刘皓,骆学贤,周操,刘丽
摘要(Abstract)：
对雷州常见的3种滨珊瑚科珊瑚:澄黄滨珊瑚(Porites lutea)、灰黑滨珊瑚(Porites nigrescens)、普哥滨珊瑚(Porites pukoensis),共32个样本的12S rRNA基因序列进行了PCR扩增和测序,研究其系统发生关系。结果显示,所得的3种珊瑚的12S rRNA基因长度在728~908 bp之间,G+C含量在34.3%~39.2%之间,遗传距离在0.004~0.019之间。利用邻接(NJ)法、最大似然(ML)法和不加权对群分析(UPGMA)法构建的系统进化树显示:3种珊瑚被分成了2个支系,澄黄滨珊瑚和灰黑滨珊瑚聚合在一个分支上,而普格滨珊瑚在另一支,这一研究结果与传统形态学分类研究的结果存在一定差异。
关键词(KeyWords)： 滨珊瑚;12S rRNA;系统进化
基金项目(Foundation): 国家海洋公益性行业科研专项(201105012);; 广东省自然科学基金项目(S2011010000269);; 广东省海洋渔业科技推广专项(A201101B02)
作者(Author): 刘皓,骆学贤,周操,刘丽
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