Sporolithon yoneshigueae sp nov (Sporolithales, Corallinophycidae, Rhodophyta), a new rhodolith-forming coralline alga from the southwest Atlantic

被引：17
作者：
Bahia, Ricardo G. [1 ]
Amado-Filho, Gilberto M. [1 ]
Maneveldt, Gavin W. [2 ]
Adey, Walter H. [3 ]
Johnson, Gabriel [3 ]
Jesionek, Michel B. [4 ]
Longo, Leila L. [1 ]
机构：
[1] Diretoria Pesquisa Cient, Inst Pesquisas Jardim Bot Rio de Janeiro, BR-22460030 Rio De Janeiro, RJ, Brazil
[2] Univ Western Cape, Dept Biodivers & Conservat Biol, ZA-7535 Bellville, South Africa
[3] Smithsonian Inst, Natl Museum Nat Hist, Dept Bot, Washington, DC 20560 USA
[4] Univ Fed Rio de Janeiro, Ctr Ciencias Saude, Inst Biol, BR-21941900 Rio De Janeiro, RJ, Brazil
来源：
PHYTOTAXA | 2015年 / 224卷 / 02期
基金：
新加坡国家研究基金会;
关键词：
genetic marker; molecular phylogeny; Sporolithaceae; taxonomy; PTYCHOIDES HEYDRICH; RED ALGAE; SPERMONDE ARCHIPELAGO; PHYLOGENY; GENUS; PSBA; CERAMIACEAE; MORPHOLOGY; REVISION; RECORD;
D O I：
10.11646/phytotaxa.224.2.2
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
The aim of this study was to describe the new rhodolith-forming coralline alga species, Sporolithon yoneshigueae sp. nov., based on both morpho-anatomical and molecular data. Specimens were collected in rhodolith beds between 28 and 66 m depths in northeastern and southeastern Brazil. The new species can be distinguished from all other species of the genus Sporolithon by its wide tetrasporangial compartment pore diameter (35-43 mu m) and the correspondingly large number (19-24) of rosette cells surrounding the tetrasporangial compartment pore. Phylogenies inferred from psbA and SSU markers support it as a new species within Sporolithon with interspecific genetic divergence varying from 8.86-10.94 %, and 3.67-4.63%, respectively. Observations from recent gathering and from herbarium collections show that specimens previously designated as Sporolithon mediterraneum in Brazil correspond to Sporolithon yoneshigueae.
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页码：140 / 158
页数：19
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