RRC ID 58268
著者 Casamatta DA, Villanueva CD, Garvey AD, Stocks HS, Vaccarino M, Dvořák P, Hašler P, Johansen JR.
タイトル Reptodigitus Chapmanii (Nostocales, Hapalosiphonaceae) Gen. Nov.: A Unique Nostocalean (Cyanobacteria) Genus Based on a Polyphasic Approach1.
ジャーナル J Phycol
Abstract The Nostocales is a monophyletic, heterocytous lineage of cyanobacteria capable of akinete production and division in multiple planes, depending upon family-level clade. While present in a variety of ecosystems, the diversity of the Nostocales has been poorly elucidated. Due to environmentally -induced phenotypic plasticity, morphology alone is often insufficient to determine the true phylogenetic placement of these taxa. In order to bridge this gap, taxonomists now employ the polyphasic approach, combining methods such as morphological analysis, phylogenetic analysis based on DNA sequence and genetic identity based on ribosomal genes, and secondary structure of the 16S-23S ITS and 16S rRNA gene sequences, as well as ecological characterization. Using this combined approach, a new genus and species (Reptodigitus chapmanii gen. et sp. nov.) isolated from the St. Johns River (Jacksonville, Florida, USA) within the Nostocales is herein described. Phylogenetic analyses place this taxon within the Hapalosiphonaceae, sister to the clade containing Fischerella, Hapalosiphon, and Westiellopsis. The 16S-23S ITS secondary folding structure analysis also supports the erection of this new genus.
巻・号 56(2)
ページ 425-436
公開日 2020-4-1
DOI 10.1111/jpy.12954
PMID 31837017
MeSH Cyanobacteria* / genetics DNA, Bacterial / genetics Ecosystem* Florida Phylogeny RNA, Ribosomal, 16S / genetics Sequence Analysis, DNA
IF 2.328
引用数 1
リソース情報
藻類 NIES-592 NIES-3754 NIES-4106