New banded Leporinus (Characiformes: Anostomidae) from the Madeira River basin, Brazil, and redescription of L. bleheri, based on integrative taxonomy
Abstract Leporinus bleheri was described for the Guaporé-Iténez basin, in the border between Bolivia and Brazil. More recently, specimens of a similar-looking banded Leporinus were sampled in distinct rivers in the Madeira basin. Herein, we use an integrative approach combining molecular and morphol...
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Sociedade Brasileira de Ictiologia
2025-01-01
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| Series: | Neotropical Ichthyology |
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| author | Mariana Pascoal Boaretto Willian Massaharu Ohara Lenice Souza-Shibatta José Luís Olivan Birindelli |
| author_facet | Mariana Pascoal Boaretto Willian Massaharu Ohara Lenice Souza-Shibatta José Luís Olivan Birindelli |
| author_sort | Mariana Pascoal Boaretto |
| collection | DOAJ |
| description | Abstract Leporinus bleheri was described for the Guaporé-Iténez basin, in the border between Bolivia and Brazil. More recently, specimens of a similar-looking banded Leporinus were sampled in distinct rivers in the Madeira basin. Herein, we use an integrative approach combining molecular and morphological data to investigate the taxonomic status of the new samples. Morphometric data were used to perform a Principal Components Analysis (PCA). Both species specimens were cleared and double-stained for osteological description. DNA barcodes were used to investigate the genetic distance between samples and for species delimitation analyses. Molecular markers COI, CytB, 16S, Myh6, RAG1, and RAG2 were applied to estimate the phylogenetic relationships of the two species. Our results show morphological and genetic differences between samples of L. bleheri and the new species. Both species are herein (re)described and illustrated. The new species is distinguished from L. bleheri by having 12 scale rows around the caudal peduncle (vs. 16). The genetic distance between the new species and L. bleheri was of 3.93%, and species delimitation analysis recovered the samples as separated molecular units. The multi-loci analysis corroborated the sister-group relationships between both species, including them within the Leporinus fasciatus group, which was recovered as non monophyletic. |
| format | Article |
| id | doaj-art-9a9954c9584540b9b4b51dddfa19d693 |
| institution | Kabale University |
| issn | 1982-0224 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Sociedade Brasileira de Ictiologia |
| record_format | Article |
| series | Neotropical Ichthyology |
| spelling | doaj-art-9a9954c9584540b9b4b51dddfa19d6932025-01-21T07:38:56ZengSociedade Brasileira de IctiologiaNeotropical Ichthyology1982-02242025-01-0122410.1590/1982-0224-2024-0028New banded Leporinus (Characiformes: Anostomidae) from the Madeira River basin, Brazil, and redescription of L. bleheri, based on integrative taxonomyMariana Pascoal Boarettohttps://orcid.org/0009-0001-5744-7191Willian Massaharu Oharahttps://orcid.org/0000-0003-1684-4198Lenice Souza-Shibattahttps://orcid.org/0000-0001-8097-6895José Luís Olivan Birindellihttps://orcid.org/0000-0001-9646-9636Abstract Leporinus bleheri was described for the Guaporé-Iténez basin, in the border between Bolivia and Brazil. More recently, specimens of a similar-looking banded Leporinus were sampled in distinct rivers in the Madeira basin. Herein, we use an integrative approach combining molecular and morphological data to investigate the taxonomic status of the new samples. Morphometric data were used to perform a Principal Components Analysis (PCA). Both species specimens were cleared and double-stained for osteological description. DNA barcodes were used to investigate the genetic distance between samples and for species delimitation analyses. Molecular markers COI, CytB, 16S, Myh6, RAG1, and RAG2 were applied to estimate the phylogenetic relationships of the two species. Our results show morphological and genetic differences between samples of L. bleheri and the new species. Both species are herein (re)described and illustrated. The new species is distinguished from L. bleheri by having 12 scale rows around the caudal peduncle (vs. 16). The genetic distance between the new species and L. bleheri was of 3.93%, and species delimitation analysis recovered the samples as separated molecular units. The multi-loci analysis corroborated the sister-group relationships between both species, including them within the Leporinus fasciatus group, which was recovered as non monophyletic.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252024000400205&lng=en&tlng=enAnostomoideaAmazonOstariophysiSpecies delimitation analysisTaxonomy |
| spellingShingle | Mariana Pascoal Boaretto Willian Massaharu Ohara Lenice Souza-Shibatta José Luís Olivan Birindelli New banded Leporinus (Characiformes: Anostomidae) from the Madeira River basin, Brazil, and redescription of L. bleheri, based on integrative taxonomy Neotropical Ichthyology Anostomoidea Amazon Ostariophysi Species delimitation analysis Taxonomy |
| title | New banded Leporinus (Characiformes: Anostomidae) from the Madeira River basin, Brazil, and redescription of L. bleheri, based on integrative taxonomy |
| title_full | New banded Leporinus (Characiformes: Anostomidae) from the Madeira River basin, Brazil, and redescription of L. bleheri, based on integrative taxonomy |
| title_fullStr | New banded Leporinus (Characiformes: Anostomidae) from the Madeira River basin, Brazil, and redescription of L. bleheri, based on integrative taxonomy |
| title_full_unstemmed | New banded Leporinus (Characiformes: Anostomidae) from the Madeira River basin, Brazil, and redescription of L. bleheri, based on integrative taxonomy |
| title_short | New banded Leporinus (Characiformes: Anostomidae) from the Madeira River basin, Brazil, and redescription of L. bleheri, based on integrative taxonomy |
| title_sort | new banded leporinus characiformes anostomidae from the madeira river basin brazil and redescription of l bleheri based on integrative taxonomy |
| topic | Anostomoidea Amazon Ostariophysi Species delimitation analysis Taxonomy |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252024000400205&lng=en&tlng=en |
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