Gelidium guimaraesine sp. nov. (Gelidiaceae, Rhodophyta) from the Western Atlantic segregated from G-floridanum by morphological and molecular evidence

Author(s)

Brunelli, Beatriz ^[1] ; Milstein, Daniela ^[2] ; Boo, Sung M. ^[3] ; Fujii, Mutue T. ^[4]

Affiliation

^[1] Inst Bot, Postgrad Programme Biodiversidade Vegetal & Meio, Av Miguel Estefano 3687, BR-04301012 Sao Paulo - Brazil

^[2] Univ Fed Sao Paulo, Dept Ciencias Mar, Campus Baixada Santista, BR-11070100 Santos - Brazil

^[3] Chungnam Natl Univ, Dept Biol, Daejeon 305764 - South Korea

^[4] Inst Bot, Nucleo Pesquisa Ficol, Av Miguel Estefano 3687, BR-04301012 Sao Paulo - Brazil

• Document type: Journal article
• Source: PHYTOTAXA; v. 388, n. 4, p. 275-286, JAN 23 2019.
• Web of Science Citations: 1

Abstract

The Gelidium species are susceptible to a great phenotypic plasticity. In this genus, studies integrating morphological and molecular data have been increasingly used to define species. To date nine Gelidium species are reported along the Brazilian coast. Gelidium floridanum is the most frequently recorded species in Brazilian but it is also often confused with morphologically similar species, especially in the field or when reproductive structures are absent. In this study we analyzed specimens from Brazil previously identified as G. floridanum based on the morphological and molecular data (cox1 and rbcL DNA sequences). Newly collected specimens from Brazil showed a DNA sequence divergence from G. floridanum in the order of 1.0-1.4% for rbcL and 4.2% for cox1, enough to be considered a new species, here described as Gelidium guimaraesiae sp. nov. (AU)

• FAPESP's process: 12/18775-6 - Phylogenetic and phylogeographic approach, based on molecular data, on representative of Ceramiales and Gelidiales (Rhodophyta) from Brazil
• Grantee: Mutue Toyota Fujii
• Support Opportunities: BIOTA-FAPESP Program - Regular Research Grants