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.

引用

页码：140 / 158

页数：19

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