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

• Published in: Journal of phycology Vol. 53; no. 2; pp. 368 - 380
• Main Authors: Bustamante, Danilo E., Won, Boo Yeon, Miller, Kathy Ann, Cho, Tae Oh, Gabrielson, P.
• Format: Journal Article
• Language: English
• Published: United States Wiley Subscription Services, Inc 01-04-2017
• Subjects: cox1; DNA, Ribosomal; morphology; Phylogeny; Polysiphonia sensu lato; rbcL; Rhodophyta - classification; Rhodophyta - genetics; Sequence Analysis, DNA; Wilsonosiphonia fujiae; Wilsonosiphonia howei; Wilsonosiphonia indica; Wilsonosiphonia fujiae; Polysiphonia sensu lato; morphology; phylogeny; cox1; Wilsonosiphonia indica; rbcL; Wilsonosiphonia howei
• ISSN: 0022-3646; 1529-8817
• DOI: 10.1111/jpy.12512

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.