Artigo

Uncovering a hidden diversity: A new species of freshwater shrimp Macrobrachium (Decapoda: Caridea: Palaemonidae) from Neotropical region (Brazil) revealed by morphological review and mitochondrial genes analyses

A freshwater palaemonid shrimp from the São Francisco river basin in Brazil has been found to be a new species and is herein nominated as Macrobrachium veredensis sp. nov. It is morphologically similar to M. brasiliense (Heller, 1862), which is found in many rivers of South America. However, M. vere...

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Autor principal: Rossi, Natália
Outros Autores: Magalhães, Célio, Mesquita, Elis R., Mantelatto, Fernando L.
Grau: Artigo
Idioma: English
Publicado em: Zootaxa 2020
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/16519
id oai:repositorio:1-16519
recordtype dspace
spelling oai:repositorio:1-16519 Uncovering a hidden diversity: A new species of freshwater shrimp Macrobrachium (Decapoda: Caridea: Palaemonidae) from Neotropical region (Brazil) revealed by morphological review and mitochondrial genes analyses Rossi, Natália Magalhães, Célio Mesquita, Elis R. Mantelatto, Fernando L. A freshwater palaemonid shrimp from the São Francisco river basin in Brazil has been found to be a new species and is herein nominated as Macrobrachium veredensis sp. nov. It is morphologically similar to M. brasiliense (Heller, 1862), which is found in many rivers of South America. However, M. veredensis sp. nov. has a smooth carapace and few spinules on the second pereopods, while M. brasiliense has the anterolateral surface of the carapace with small spinules and the palm of the second pereopods with spines, spinules and setae. Despite their similar morphology with these subtle differences, the remarkable genetic different evidenced in DNA analysis. Molecular analyses were based on 43 sequences with 528 base pairs (bp) for 16S rDNA, and 16 new sequences with 581bp, without pseudogenes, for COI mtDNA. The nucleotide divergence between M. veredensis sp. nov. and M. brasiliense (7.0–8.5% for 16S and 11.8–12.5% for COI.), the phylogenetic topology and the haplotype network configuration and it is endemism to a region of the São Francisco river basin support the recognition of a new taxon. Copyright © 2020 Magnolia Press 2020-06-15T21:35:08Z 2020-06-15T21:35:08Z 2020 Artigo https://repositorio.inpa.gov.br/handle/1/16519 10.11646/zootaxa.4732.1.9 en Volume 4732, Número 1, Pags. 177-195 Restrito Zootaxa
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language English
description A freshwater palaemonid shrimp from the São Francisco river basin in Brazil has been found to be a new species and is herein nominated as Macrobrachium veredensis sp. nov. It is morphologically similar to M. brasiliense (Heller, 1862), which is found in many rivers of South America. However, M. veredensis sp. nov. has a smooth carapace and few spinules on the second pereopods, while M. brasiliense has the anterolateral surface of the carapace with small spinules and the palm of the second pereopods with spines, spinules and setae. Despite their similar morphology with these subtle differences, the remarkable genetic different evidenced in DNA analysis. Molecular analyses were based on 43 sequences with 528 base pairs (bp) for 16S rDNA, and 16 new sequences with 581bp, without pseudogenes, for COI mtDNA. The nucleotide divergence between M. veredensis sp. nov. and M. brasiliense (7.0–8.5% for 16S and 11.8–12.5% for COI.), the phylogenetic topology and the haplotype network configuration and it is endemism to a region of the São Francisco river basin support the recognition of a new taxon. Copyright © 2020 Magnolia Press
format Artigo
author Rossi, Natália
spellingShingle Rossi, Natália
Uncovering a hidden diversity: A new species of freshwater shrimp Macrobrachium (Decapoda: Caridea: Palaemonidae) from Neotropical region (Brazil) revealed by morphological review and mitochondrial genes analyses
author2 Magalhães, Célio
Mesquita, Elis R.
Mantelatto, Fernando L.
author2Str Magalhães, Célio
Mesquita, Elis R.
Mantelatto, Fernando L.
title Uncovering a hidden diversity: A new species of freshwater shrimp Macrobrachium (Decapoda: Caridea: Palaemonidae) from Neotropical region (Brazil) revealed by morphological review and mitochondrial genes analyses
title_short Uncovering a hidden diversity: A new species of freshwater shrimp Macrobrachium (Decapoda: Caridea: Palaemonidae) from Neotropical region (Brazil) revealed by morphological review and mitochondrial genes analyses
title_full Uncovering a hidden diversity: A new species of freshwater shrimp Macrobrachium (Decapoda: Caridea: Palaemonidae) from Neotropical region (Brazil) revealed by morphological review and mitochondrial genes analyses
title_fullStr Uncovering a hidden diversity: A new species of freshwater shrimp Macrobrachium (Decapoda: Caridea: Palaemonidae) from Neotropical region (Brazil) revealed by morphological review and mitochondrial genes analyses
title_full_unstemmed Uncovering a hidden diversity: A new species of freshwater shrimp Macrobrachium (Decapoda: Caridea: Palaemonidae) from Neotropical region (Brazil) revealed by morphological review and mitochondrial genes analyses
title_sort uncovering a hidden diversity: a new species of freshwater shrimp macrobrachium (decapoda: caridea: palaemonidae) from neotropical region (brazil) revealed by morphological review and mitochondrial genes analyses
publisher Zootaxa
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/16519
_version_ 1787141478953254912
score 11.755432

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