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首页> 外文期刊>Phycological Research >Australian Laurencia majuscula (Rhodophyta, Rhodomelaceae) and the Brazilian Laurencia dendroidea are conspecific
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Australian Laurencia majuscula (Rhodophyta, Rhodomelaceae) and the Brazilian Laurencia dendroidea are conspecific

机译:澳大利亚Laurencia majuscula(Rhodophyta,Rhodomelaceae)和巴西Laurencia dendroidea是同种的

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摘要

Morphological and molecular studies have been undertaken on two species of the red algal genus LaurenciaJ.V.Lamouroux: Laurencia majuscula (Harvey) A.H.S. Lucas and Laurencia dendroideaJ.Agardh, both from their type localities. The phylogenetic position of these species was inferred by analysis of the chloroplast-encoded rbcL gene sequences from 24 taxa. In all phylogenetic analyses, the Australian Laurencia majuscula and the Brazilian L.dendroidea formed a well-supported monophyletic clade within the Laurencia sensu stricto. This clade was divided into two subclades corresponding to each geographical region; however, the genetic divergence between Australian L.majuscula and Brazilian L.dendroidea was only 01.35%. Examination of the type specimens and sequences of freshly collected samples of both Laurencia majuscula and L.dendroidea show the two to be conspecific despite their disjunct type localities.
机译:已对两种红色藻类劳伦西亚J.V. Lamouroux进行了形态和分子研究:劳伦西亚majuscula(Harvey)A.H.S.卢卡斯(Lucas)和劳伦西亚(Laurencia)dendroideaJ.Agardh,均来自其典型地区。这些物种的系统发育位置是通过分析来自24个分类单元的叶绿体编码的rbcL基因序列来推断的。在所有的系统发育分析中,澳大利亚劳伦西亚桃金娘和巴西劳氏乳杆菌在劳伦西亚野生小树中形成了支撑良好的单系统进化枝。该进化枝被分为对应于每个地理区域的两个子进化枝。然而,澳大利亚马氏乳杆菌和巴西马氏乳杆菌之间的遗传差异仅为01.35%。对劳伦西亚山梨和L.dendroidea的类型标本和新鲜采集的样品进行的检验显示,尽管它们的类型不同,但两者是同种的。

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