基于分子和形态解剖学特征的新属威尔逊管藻属（红藻门，仙菜科）

Wilsonosiphonia gen. nov. (Rhodomelaceae, Rhodophyta) based on molecular and morpho-anatomical characters.

作者信息

Bustamante Danilo E, Won Boo Yeon, Miller Kathy Ann, Cho Tae Oh

机构信息

Department of Life Science, Chosun University, Gwangju, 501-759, Korea.

University Herbarium, University of California, Berkeley, California, 94720, USA.

出版信息

J Phycol. 2017 Apr;53(2):368-380. doi: 10.1111/jpy.12512. Epub 2017 Feb 21.

DOI:10.1111/jpy.12512

PMID:28078674

Abstract

Morphological, anatomical, and molecular sequence data were used to assess the establishment and phylogenetic position of the genus Wilsonosiphonia gen. nov. Phylogenies based on rbcL and concatenated rbcL and cox1 loci support recognition of Wilsonosiphonia gen. nov., sister to Herposiphonia. Diagnostic features for Wilsonosiphonia are rhizoids located at distal ends of pericentral cells and taproot-shaped multicellular tips of rhizoids. Wilsonosiphonia includes three species with diagnostic rbcL and cox1 sequences, Wilsonosiphonia fujiae sp. nov. (the generitype), W. howei comb. nov., and W. indica sp. nov. These three species resemble each other in external morphology, but W. fujiae is distinguished by having two tetrasporangia per segment rather than one, W. indica by having abundant and persistent trichoblasts, and W. howei by having few and deciduous trichoblasts.

摘要

利用形态学、解剖学和分子序列数据来评估新属Wilsonosiphonia的建立及其系统发育位置。基于rbcL以及串联的rbcL和cox1基因座构建的系统发育树支持对新属Wilsonosiphonia的认可，它是Herposiphonia的姐妹属。Wilsonosiphonia的诊断特征是假根位于中轴细胞的远端，且假根具有主根状的多细胞顶端。Wilsonosiphonia包括三个具有诊断性rbcL和cox1序列的物种，即新种藤氏Wilsonosiphonia（模式种）、新组合种豪氏Wilsonosiphonia和新种印度Wilsonosiphonia。这三个物种在外部形态上彼此相似，但藤氏Wilsonosiphonia的区别在于每节有两个四分孢子囊而非一个，印度Wilsonosiphonia的区别在于有丰富且持久的毛基细胞，豪氏Wilsonosiphonia的区别在于有较少且易脱落的毛基细胞。