A comparative study between Prorocentrum shikokuense and P. donghaiense (Prorocentrales, Dinophyceae) based on morphology and DNA sequences
A comparative study between Prorocentrum shikokuense and P. donghaiense (Prorocentrales, Dinophyceae) based on morphology and DNA sequences
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DOI：
10.3800/pbr.6.179
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发表时间：
2011-11
影响因子：
0.6
通讯作者：
Y. Takano;K. Matsuoka
中科院分区：
文献类型：
--
作者：
Y. Takano;K. Matsuoka
对东海原甲藻的分类地位进行了研究，并与四国原甲藻进行了比较。两种虫体的形态特征相同，均为弱凹细胞，鞭毛周围有细小的顶刺，细胞的一侧在前端略有伸展，后端呈圆形，后部有圆形的细胞核，细胞大小相似。这两个物种的小亚基rDNA和内转录间隔区1(ITS1)-5.8S rDNA-ITS2区的DNA序列基本相同。形态和分子生物学数据表明，东海原甲藻和四国原甲藻是同名异名，东海原甲藻优先于东海原甲藻。
The taxonomic position of an armored dinoflagellate Prorocentrum donghaiense Lu, 2001, which is one of the causative species of large red tides occurring off Changjiang River mouth was examined and compared to a similar species P. shikokuense. In both species, the following morphological features were shared; a weakly concave cell with a tiny apical spine around the periflagellar area, one side of the cell being slightly extended on the anterior end, a rounded posterior end, a rounded nucleus located in the posterior region and similar size of cells. DNA sequences of small subunit rDNA and internal transcribed spacer 1 (ITS1)-5.8S rDNA-ITS2 regions of these two species were largely the same. Morphological and molecular data suggest that P. donghaiense and P. shikokuense are synonymous and P. shikokuense has priority over P. donghaiense.