【摘要】 锥状斯氏藻是赤潮甲藻的主要类群之一，其孢囊在我国南海大鹏湾底泥中占明显优势，是我国沿海增养殖区的潜在危害．采用ＰＣＲ及序列测定的方法，对其ｒＤＮＡＩｎｔｅｒｎａｌＴｒａｎ－ｓｃｒｉｂｅｄＳｅｑｕｅｎｃｅ（ＩＴＳ）区进行了序列测定，可为该藻种以及斯氏藻属的鉴定及系统学研究提供分子基础更多还原

【Abstract】 The internal transcribed spacers 1 and 2(ITS1 and ITS2) of rDNA from the “red tide” algae species Scrippsiella trochoidea (Dinoflagellate ) were sequenced and analyzed to address the question of phylogeny. The results showed that Scrippsiella trochoidea had a relatively longer ITS region, 403 bp in lenght(ITS1:210 bp,ITS2:193 bp), and about 45 bp longer than other species in its order Peridiniales, which is most probaly a characteristic of Scrippsiella trochoidea corresponding to its special morphological structure.更多还原