Diversity of Galaxauraceae (Nemaliales, Rhodophyta) in northeastern Brazil: new record and two new species, Dichotomaria viridis sp. nov. and Tricleocarpa laxa sp. nov.
Many studies have focused on the taxonomy and phylogeny of the family Galaxauraceae with the use of molecular markers, allied to morphological taxonomy, providing a better understanding of the phylogenetic relationships within the family, as well assisting with the specific delimitation. For the Bra...
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ftmagnoliapress:oai:ojs.mapress.com:article/39358 2023-05-15T18:20:58+02:00 Diversity of Galaxauraceae (Nemaliales, Rhodophyta) in northeastern Brazil: new record and two new species, Dichotomaria viridis sp. nov. and Tricleocarpa laxa sp. nov. DO NASCIMENTO SANTOS, GABRIEL DOS SANTOS PESTANA, EDILENE MARIA DOS SANTOS, CIBELE CONCEIÇÃO CASSANO, VALÉRIA DE CASTRO NUNES, JOSÉ MARCOS 2020-07-29 application/pdf https://www.mapress.com/j/pt/article/view/phytotaxa.454.2.1 https://doi.org/10.11646/phytotaxa.454.2.1 eng eng Phytotaxa https://www.mapress.com/j/pt/article/view/phytotaxa.454.2.1/40753 https://www.mapress.com/j/pt/article/view/phytotaxa.454.2.1 doi:10.11646/phytotaxa.454.2.1 Copyright (c) 2020 Phytotaxa Phytotaxa; Vol 454, No 2: 29 July 2020; 73–103 1179-3163 1179-3155 10.11646/phytotaxa.454.2 Algae calcified red algae COI-5P rbcL South Atlantic Ocean taxonomy info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2020 ftmagnoliapress https://doi.org/10.11646/phytotaxa.454.2.1 2020-09-01T16:52:36Z Many studies have focused on the taxonomy and phylogeny of the family Galaxauraceae with the use of molecular markers, allied to morphological taxonomy, providing a better understanding of the phylogenetic relationships within the family, as well assisting with the specific delimitation. For the Brazilian coast, Galaxauraceae has few studies with morphological taxonomy, but lack studies with a molecular focus. The diversity of Galaxauraceae was assessed in northeastern Brazil (Bahia state) using rbcL and COI-5P, as well as morpho-anatomical analyses. We report four species from Brazil: Dichotomaria huismanii (the first report for the Brazilian coast), D. obtusata, Galaxaura rugosa, and Tricleocarpa fragilis. Molecular and morphological data supported the establishment of two new species for Galaxauraceae: Tricleocarpa laxa sp. nov. and Dichotomaria viridis sp. nov. Tricleocarpa laxa formed a well-supported clade sister to T. natalensis (South Africa, type locality) and T. cylindrica (Australia) in both rbcL and COI-5P analyses, whereas Dichotomaria viridis, formed a moderate clade sister to D. huismanii. The Brazilian sequences of D. huismanii grouped with sequences from the type locality (Bermuda) showing no intraspecific divergence for rbcL, and very low divergence values for COI-5P. The record of D. huismanii in Brazil expands its geographical distribution to the South Atlantic Ocean. Male plants are described for the first time for this species. Even though our results are restricted to a region of northeastern Brazil (Bahia), they clearly revealed a hidden diversity of Galaxauraceae in Brazil. Article in Journal/Newspaper South Atlantic Ocean Magnolia press Rugosa ENVELOPE(-61.250,-61.250,-62.633,-62.633) Laxa ENVELOPE(-17.055,-17.055,65.344,65.344) Phytotaxa 454 2 73 103 |
institution |
Open Polar |
collection |
Magnolia press |
op_collection_id |
ftmagnoliapress |
language |
English |
topic |
Algae calcified red algae COI-5P rbcL South Atlantic Ocean taxonomy |
spellingShingle |
Algae calcified red algae COI-5P rbcL South Atlantic Ocean taxonomy DO NASCIMENTO SANTOS, GABRIEL DOS SANTOS PESTANA, EDILENE MARIA DOS SANTOS, CIBELE CONCEIÇÃO CASSANO, VALÉRIA DE CASTRO NUNES, JOSÉ MARCOS Diversity of Galaxauraceae (Nemaliales, Rhodophyta) in northeastern Brazil: new record and two new species, Dichotomaria viridis sp. nov. and Tricleocarpa laxa sp. nov. |
topic_facet |
Algae calcified red algae COI-5P rbcL South Atlantic Ocean taxonomy |
description |
Many studies have focused on the taxonomy and phylogeny of the family Galaxauraceae with the use of molecular markers, allied to morphological taxonomy, providing a better understanding of the phylogenetic relationships within the family, as well assisting with the specific delimitation. For the Brazilian coast, Galaxauraceae has few studies with morphological taxonomy, but lack studies with a molecular focus. The diversity of Galaxauraceae was assessed in northeastern Brazil (Bahia state) using rbcL and COI-5P, as well as morpho-anatomical analyses. We report four species from Brazil: Dichotomaria huismanii (the first report for the Brazilian coast), D. obtusata, Galaxaura rugosa, and Tricleocarpa fragilis. Molecular and morphological data supported the establishment of two new species for Galaxauraceae: Tricleocarpa laxa sp. nov. and Dichotomaria viridis sp. nov. Tricleocarpa laxa formed a well-supported clade sister to T. natalensis (South Africa, type locality) and T. cylindrica (Australia) in both rbcL and COI-5P analyses, whereas Dichotomaria viridis, formed a moderate clade sister to D. huismanii. The Brazilian sequences of D. huismanii grouped with sequences from the type locality (Bermuda) showing no intraspecific divergence for rbcL, and very low divergence values for COI-5P. The record of D. huismanii in Brazil expands its geographical distribution to the South Atlantic Ocean. Male plants are described for the first time for this species. Even though our results are restricted to a region of northeastern Brazil (Bahia), they clearly revealed a hidden diversity of Galaxauraceae in Brazil. |
format |
Article in Journal/Newspaper |
author |
DO NASCIMENTO SANTOS, GABRIEL DOS SANTOS PESTANA, EDILENE MARIA DOS SANTOS, CIBELE CONCEIÇÃO CASSANO, VALÉRIA DE CASTRO NUNES, JOSÉ MARCOS |
author_facet |
DO NASCIMENTO SANTOS, GABRIEL DOS SANTOS PESTANA, EDILENE MARIA DOS SANTOS, CIBELE CONCEIÇÃO CASSANO, VALÉRIA DE CASTRO NUNES, JOSÉ MARCOS |
author_sort |
DO NASCIMENTO SANTOS, GABRIEL |
title |
Diversity of Galaxauraceae (Nemaliales, Rhodophyta) in northeastern Brazil: new record and two new species, Dichotomaria viridis sp. nov. and Tricleocarpa laxa sp. nov. |
title_short |
Diversity of Galaxauraceae (Nemaliales, Rhodophyta) in northeastern Brazil: new record and two new species, Dichotomaria viridis sp. nov. and Tricleocarpa laxa sp. nov. |
title_full |
Diversity of Galaxauraceae (Nemaliales, Rhodophyta) in northeastern Brazil: new record and two new species, Dichotomaria viridis sp. nov. and Tricleocarpa laxa sp. nov. |
title_fullStr |
Diversity of Galaxauraceae (Nemaliales, Rhodophyta) in northeastern Brazil: new record and two new species, Dichotomaria viridis sp. nov. and Tricleocarpa laxa sp. nov. |
title_full_unstemmed |
Diversity of Galaxauraceae (Nemaliales, Rhodophyta) in northeastern Brazil: new record and two new species, Dichotomaria viridis sp. nov. and Tricleocarpa laxa sp. nov. |
title_sort |
diversity of galaxauraceae (nemaliales, rhodophyta) in northeastern brazil: new record and two new species, dichotomaria viridis sp. nov. and tricleocarpa laxa sp. nov. |
publisher |
Phytotaxa |
publishDate |
2020 |
url |
https://www.mapress.com/j/pt/article/view/phytotaxa.454.2.1 https://doi.org/10.11646/phytotaxa.454.2.1 |
long_lat |
ENVELOPE(-61.250,-61.250,-62.633,-62.633) ENVELOPE(-17.055,-17.055,65.344,65.344) |
geographic |
Rugosa Laxa |
geographic_facet |
Rugosa Laxa |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_source |
Phytotaxa; Vol 454, No 2: 29 July 2020; 73–103 1179-3163 1179-3155 10.11646/phytotaxa.454.2 |
op_relation |
https://www.mapress.com/j/pt/article/view/phytotaxa.454.2.1/40753 https://www.mapress.com/j/pt/article/view/phytotaxa.454.2.1 doi:10.11646/phytotaxa.454.2.1 |
op_rights |
Copyright (c) 2020 Phytotaxa |
op_doi |
https://doi.org/10.11646/phytotaxa.454.2.1 |
container_title |
Phytotaxa |
container_volume |
454 |
container_issue |
2 |
container_start_page |
73 |
op_container_end_page |
103 |
_version_ |
1766199945613803520 |