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刘淼, 王宏伟, 栾日孝. 红藻门新种博鳌蜈蚣藻基于形态观察和rbcL序列分析[J]. 水生生物学报, 2014, 38(5): 944-944. DOI: 10.7541/2014.139
引用本文: 刘淼, 王宏伟, 栾日孝. 红藻门新种博鳌蜈蚣藻基于形态观察和rbcL序列分析[J]. 水生生物学报, 2014, 38(5): 944-944. DOI: 10.7541/2014.139
LIU Miao, WANG Hong-Wei, LUAN Ri-Xiao. MORPHOLOGICAL OBSERVATION AND RBCL SEQUENCE ANALYSIS OF A NEW SPECIES FROM CHINA, GRATELOUPIA BOAOENSIS WANG ET LUAN SP. NOV. (HALYMENIACEAE, RHODOPHYTA)[J]. ACTA HYDROBIOLOGICA SINICA, 2014, 38(5): 944-944. DOI: 10.7541/2014.139
Citation: LIU Miao, WANG Hong-Wei, LUAN Ri-Xiao. MORPHOLOGICAL OBSERVATION AND RBCL SEQUENCE ANALYSIS OF A NEW SPECIES FROM CHINA, GRATELOUPIA BOAOENSIS WANG ET LUAN SP. NOV. (HALYMENIACEAE, RHODOPHYTA)[J]. ACTA HYDROBIOLOGICA SINICA, 2014, 38(5): 944-944. DOI: 10.7541/2014.139

红藻门新种博鳌蜈蚣藻基于形态观察和rbcL序列分析

MORPHOLOGICAL OBSERVATION AND RBCL SEQUENCE ANALYSIS OF A NEW SPECIES FROM CHINA, GRATELOUPIA BOAOENSIS WANG ET LUAN SP. NOV. (HALYMENIACEAE, RHODOPHYTA)

  • 摘要: 通过形态学观察和rbcL序列分析报道产自海南省文昌的红藻门海膜科蜈蚣藻属一新种: 博鳌蜈蚣藻(Grateloupia boaoensis Wang et Luan sp. Nov.)。博鳌蜈蚣藻的藻体紫红色, 表面光滑, 软骨质, 高15-40 cm; 主枝侧枝均扁形, 叶片状; 分枝顶端呈剑形, 厚度为400-800 m, 由4-9层皮层细胞和髓部组成, 髓丝纵走, 错综交织; 助细胞生殖枝丛为典型的Grateloupia型; 囊果在主枝与分枝上均有分布并分布密集。在用rbcL序列构建的系统树中, 四个博鳌蜈蚣藻样品聚在一起并与莺歌海蜈蚣藻(G. yinggehaiensis)聚成一个小分支。通过形态观察和rbcL序列分析, 认为博鳌蜈蚣藻和莺歌海蜈蚣藻的亲缘关系最近。

     

    Abstract: During macroalgae investigation, a new Grateloupia species from Wenchang, Hainan Province, South China, was discovered and named Grateloupia boaoensis Wang et Luan sp. nov. By using morphological observation and molecular analysis, we determined that G. boaoensis was purplish red, cartilaginous and slippery in texture, 15-40 cm high, with completely compressed and foliated axes with lateral branches and sword-shaped apex. The transverse sections were 400-800 祄 thick consisting of 4-9 layers of cortex cells and solid medulla, and the medullar filaments were longitudinal and intertwined. The new species exhibited typical Grateloupia-type auxiliary cell ampullae. Cystocarps were densely distributed on both axes and lateral branches. The four G. boaoensis sequences in this study were identical and formed a single monophyletic subclade with G. yinggehaiensis embedded in the Grateloupia clade based on ribulose-1, 5-bisphosphate carboxylase/oxygenase gene (rbcL) sequences. G. boaoensis was considered most closely related to G. yinggehaiensis by morphological observation and molecular analysis.

     

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