Molecular species delimitation of the genera Anodus, Argonectes, Bivibranchia and Micromischodus (Ostariophysi: Characiformes)
ABSTRACT A good taxonomic assessment of specimens is an essential task to many biological studies and DNA data have provided additional sources of information to assist in the disentanglement of taxonomic problems among living organisms, as has been the case of some taxa of the megadiverse Neotropic...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Ictiologia
2021-12-01
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| Series: | Neotropical Ichthyology |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252021000400220&tlng=en |
| _version_ | 1819005754892353536 |
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| author | Acácio Freitas Nogueira Claudio Oliveira Francisco Langeani Andre Luiz Netto-Ferreira |
| author_facet | Acácio Freitas Nogueira Claudio Oliveira Francisco Langeani Andre Luiz Netto-Ferreira |
| author_sort | Acácio Freitas Nogueira |
| collection | DOAJ |
| description | ABSTRACT A good taxonomic assessment of specimens is an essential task to many biological studies and DNA data have provided additional sources of information to assist in the disentanglement of taxonomic problems among living organisms, as has been the case of some taxa of the megadiverse Neotropical ichthyofauna. Here we assessed all valid species in the Neotropical freshwater fish genera Anodus, Argonectes, Bivibranchia and Micromischodus of the family Hemiodontidae to establish molecular species boundaries among them. All species delimitation methods defined exactly only one MOTU for Anodus elongatus, Argonectes longiceps, A. robertsi, Bivibranchia bimaculata, B. notata, B. velox, and Micromischodus sugillatus, resulting in total congruence between nominal species and MOTUs for these seven taxa. The three species having discordant results across analyses: Anodus orinocensis, Bivibranchia fowleri, and Bivibranchia simulata, matched more than one MOTU per species in some methods, meaning that cryptic diversity may exist within these taxa. Overall, this great correspondence among morphological and molecular boundaries for thae species analysed seem to be indicative of a reasonably stable taxonomy within these Hemiodontidae genera. |
| first_indexed | 2024-12-20T23:57:49Z |
| format | Article |
| id | doaj.art-789925b44a384ef6b0185598460445c2 |
| institution | Directory Open Access Journal |
| issn | 1982-0224 |
| language | English |
| last_indexed | 2024-12-20T23:57:49Z |
| publishDate | 2021-12-01 |
| publisher | Sociedade Brasileira de Ictiologia |
| record_format | Article |
| series | Neotropical Ichthyology |
| spelling | doaj.art-789925b44a384ef6b0185598460445c22022-12-21T19:22:41ZengSociedade Brasileira de IctiologiaNeotropical Ichthyology1982-02242021-12-0119410.1590/1982-0224-2021-0005Molecular species delimitation of the genera Anodus, Argonectes, Bivibranchia and Micromischodus (Ostariophysi: Characiformes)Acácio Freitas Nogueirahttps://orcid.org/0000-0003-2636-194XClaudio Oliveirahttps://orcid.org/0000-0002-7010-8880Francisco Langeanihttps://orcid.org/0000-0001-7376-4798Andre Luiz Netto-Ferreirahttps://orcid.org/0000-0002-3096-0411ABSTRACT A good taxonomic assessment of specimens is an essential task to many biological studies and DNA data have provided additional sources of information to assist in the disentanglement of taxonomic problems among living organisms, as has been the case of some taxa of the megadiverse Neotropical ichthyofauna. Here we assessed all valid species in the Neotropical freshwater fish genera Anodus, Argonectes, Bivibranchia and Micromischodus of the family Hemiodontidae to establish molecular species boundaries among them. All species delimitation methods defined exactly only one MOTU for Anodus elongatus, Argonectes longiceps, A. robertsi, Bivibranchia bimaculata, B. notata, B. velox, and Micromischodus sugillatus, resulting in total congruence between nominal species and MOTUs for these seven taxa. The three species having discordant results across analyses: Anodus orinocensis, Bivibranchia fowleri, and Bivibranchia simulata, matched more than one MOTU per species in some methods, meaning that cryptic diversity may exist within these taxa. Overall, this great correspondence among morphological and molecular boundaries for thae species analysed seem to be indicative of a reasonably stable taxonomy within these Hemiodontidae genera.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252021000400220&tlng=enBiodiversityCryptic speciesDNA barcodingHemiodontidaeTaxonomy |
| spellingShingle | Acácio Freitas Nogueira Claudio Oliveira Francisco Langeani Andre Luiz Netto-Ferreira Molecular species delimitation of the genera Anodus, Argonectes, Bivibranchia and Micromischodus (Ostariophysi: Characiformes) Neotropical Ichthyology Biodiversity Cryptic species DNA barcoding Hemiodontidae Taxonomy |
| title | Molecular species delimitation of the genera Anodus, Argonectes, Bivibranchia and Micromischodus (Ostariophysi: Characiformes) |
| title_full | Molecular species delimitation of the genera Anodus, Argonectes, Bivibranchia and Micromischodus (Ostariophysi: Characiformes) |
| title_fullStr | Molecular species delimitation of the genera Anodus, Argonectes, Bivibranchia and Micromischodus (Ostariophysi: Characiformes) |
| title_full_unstemmed | Molecular species delimitation of the genera Anodus, Argonectes, Bivibranchia and Micromischodus (Ostariophysi: Characiformes) |
| title_short | Molecular species delimitation of the genera Anodus, Argonectes, Bivibranchia and Micromischodus (Ostariophysi: Characiformes) |
| title_sort | molecular species delimitation of the genera anodus argonectes bivibranchia and micromischodus ostariophysi characiformes |
| topic | Biodiversity Cryptic species DNA barcoding Hemiodontidae Taxonomy |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252021000400220&tlng=en |
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