A novel species Symphyocladia glabra sp nov (Rhodomelaceae, Rhodophyta) from Korea based on morphological and molecular analyses
A novel species Symphyocladia glabra sp nov (Rhodomelaceae, Rhodophyta) from Korea based on morphological and molecular analyses
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DOI：
10.4490/algae.2013.28.2.149
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发表时间：
2013-06-01
期刊：
影响因子：
3.2
通讯作者：
Kim, Myung Sook
中科院分区：
文献类型：
--
作者：
Kang, Jeong Chan;Kim, Myung Sook
目前世界上已知的六种Symphyocladia，据报道都生长在韩国海岸。根据形态学和分子生物学证据，描述了一新种光滑合枝藻Symphyocladia glabra sp. nov.。该新种的主要特征是叶状体直立而宽，顶端细胞平行排列，先天细胞完全融合，中脉基部皮质化，具6 ~ 8个中周细胞，假根从中周细胞中切断，营养毛细胞缺失。该新种与S. marchantioides和S.犹太人。然而，S. glabra sp. nov.与S. marchantioides的叶状体下部的皮质化和营养毛细胞的缺乏，和S。jejujuly由数量的中心周细胞和事实，即叶状体不锥向上。rbcL序列同源性分析表明，S. glabra sp. nov.是Symphyocladia属中的一个独立个体。
Six species of the genus Symphyocladia are currently recognized worldwide, all of which are reported to grow on the Korean coast. We described a new species Symphyocladia glabra sp. nov. based on morphological and molecular evidence. The new species is characterized by mostly an erect and broad thallus, the parallel arrangement of numerous apical cells, completely fused congenital cells, a corticated basal portion of faint midrib with six to eight pericentral cells, rhizoids cutting off from pericentral cells, and absent vegetative trichoblasts. The new species has morphological similarity to S. marchantioides and S. jejuinsula. However, S. glabra sp. nov. is distinguished from S. marchantioides by the corticated lower portion of the thallus and the absence of vegetative trichoblasts, and S. jejuinsula by number of pericentral cells and the fact that the thallus does not taper upward. The phylogeny of rbcL sequences indicated that S. glabra sp. nov. is definitely a separate entity within the genus Symphyocladia.