Recent introduction of Polysiphonia morrowii (Ceramiales, Rhodophyta) to Punta Arenas, Chile
Recent introduction of Polysiphonia morrowii (Ceramiales, Rhodophyta) to Punta Arenas, Chile
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最近将 Polysiphonia morrowii（Ceramiales，Rhodophyta）引入智利蓬塔阿雷纳斯
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
S. Boo
中科院分区：
文献类型：
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作者：
M. Kim;E. Yang;A. Mansilla;S. Boo
莫氏多管藻（Polysiphonia morrowii，Rhodomelaceae，Rhodophyta）是春季在西北太平洋潮间带分布最多的一种植物，近年来已被引入地中海。我们于二月在智利最南端的蓬塔阿雷纳斯的潮间带岩石中采集了该物种的标本。叶状体浓密丛生，细长，具4个中心周细胞，无皮层，四孢囊末级小枝短。质体蛋白编码rbcL进行了分析，从标本收集在智利和韩国，以及从推定的亲属。智利标本的rbcL序列与韩国标本的rbcL序列几乎相同，并且与来自智利和其他地区的其他相关类群明显分离。这些结果表明，P.morrowii最近已从西北太平洋引入智利。
Abstract Polysiphonia morrowii (Rhodomelaceae, Rhodophyta) is abundant in intertidal zones of the northwestern Pacific Ocean in spring, and has been introduced to the Mediterranean Sea. We collected specimens of this species from intertidal rocks in February in Punta Arenas, in southernmost Chile. Thalli were densely tufted, slender, and elongate, with four pericentral cells, no cortication and short tetrasporangial ultimate branchlets. The plastid protein-coding rbcL was analyzed from specimens collected in Chile and Korea, as well as from putative relatives. The rbcL sequences of the Chilean specimens were almost identical to those from Korea, and were clearly separated from other related taxa from Chile and other areas. These results suggest that P. morrowii has been introduced recently from the northwestern Pacific Ocean to Chile.