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| Registros recuperados: 11 | |
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| Puillandre, Nicolas; Baylac, Michel; Boisselier, Marie-catherine; Cruaud, Corinne; Samadi, Sarah. |
| DNA sequences are currently used to propose primary hypotheses of species delimitation, especially when morphological variability is difficult to assess. In an integrative taxonomy framework, these hypotheses are then compared with other characters, such as morphology or geography, to produce robust species delimitations. For this purpose, the cytochrome oxidase subunit I (COI) gene has been sequenced for almost 50 specimens of the genus Benthomangelia, a deep-sea marine gastropod genus, collected in the South-West Pacific. Five genetic groups, displaying low and high genetic distances respectively within and between groups, were defined. COI hypotheses were compared with both the results obtained with the independent nuclear 28S gene and with an elliptic... |
| Tipo: Text |
Palavras-chave: 28S rRNA; COI gene; DNA taxonomy; Elliptic fourier analysis; Integrative taxonomy; Molluscs. |
| Ano: 2009 |
URL: https://archimer.ifremer.fr/doc/00206/31678/30065.pdf |
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| Rojas, Rommel R.; Fouquet, Antoine; Ron, Santiago R.; Hernandez-ruz, Emil Jose; Melo-sampaio, Paulo R.; Chaparro, Juan C.; Vogt, Richard C.; De Carvalho, Vinicius Tadeu; Pinheiro, Leandra Cardoso; Avila, Robson W.; Farias, Izeni Pires; Gordo, Marcelo; Hrbek, Tomas. |
| Amphibians are probably the most vulnerable group to climate change and climate-change associate diseases. This ongoing biodiversity crisis makes it thus imperative to improve the taxonomy of anurans in biodiverse but understudied areas such as Amazonia. In this study, we applied robust integrative taxonomic methods combining genetic (mitochondrial 16S, 12S and COI genes), morphological and environmental data to delimit species of the genus Amazophrynella (Anura: Bufonidae) sampled from throughout their pan-Amazonian distribution. Our study confirms the hypothesis that the species diversity of the genus is grossly underestimated. Our analyses suggest the existence of eighteen linages of which seven are nominal species, three Deep Conspecific Lineages, one... |
| Tipo: Text |
Palavras-chave: Integrative taxonomy; Cryptic diversity; Species delimitation; Amphibians; Amazon. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00660/77219/78676.pdf |
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| Liimatainen, K.; Carteret, X.; Dima, B.; Kytövuori, I.; Bidaud, A.; Reumaux, P.; Niskanen, T.; Ammirati, J.F.; Bellanger, J.-M.. |
| Cortinarius is the largest genus of ectomycorrhizal fungi worldwide. Recent molecular studies have shown high levels of morphological homoplasy within the genus. Importantly, DNA phylogenies can reveal characteristics that have been either over- or underemphasized in taxonomic studies. Here we sequenced and phylogenetically analysed a large set of pan-European and North American collections taxonomically studied and placed in Cortinarius sect. Bicolores and sect. Saturnini, according to traditional morpho-anatomical criteria. Our goal was to circumscribe the evolutionary boundaries of the two sections, to stabilize both the limits and nomenclature of relevant species, and to identify described taxa which, according to our current understanding, belong to... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Bicolores; Cortinarius phylogeny; Integrative taxonomy; Saturnini; Telamonia. |
| Ano: 2017 |
URL: http://www.repository.naturalis.nl/record/635600 |
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| Biju, S.D.; Garg, S.; Mahony, S.; Wijayathilaka, N.; Senevirathne, G.; Meegaskumbura, M.. |
| A systematic revision of the genus Hylarana in the Western Ghats-Sri Lanka biodiversity hotspot is presented. Species delineation in Hylarana is complicated due to a lack of distinct colour differences or striking morphological characters, leading to potential misidentification. We conducted extensive surveys throughout the Western Ghats-Sri Lanka biodiversity hotspot and performed multiple gene (16S, COI and Cytb) barcoding using 103 samples collected from cultivated land and natural habitats. Genetic distance comparisons and Neighbor Joining trees indicated the presence of at least 14 candidate species in the region, supported by taxa groupings for all three genetic markers. Utilising a combination of molecular and morphological data, we describe seven... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Amphibia; Cryptic species; Endemism; Integrative taxonomy; Lectotypification; Multiple gene barcoding; Neotypification; Taxonomic revision; 42.82; 42.64. |
| Ano: 2014 |
URL: http://www.repository.naturalis.nl/record/506456 |
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| Pino-Bodas, R.; Pérez-Vargas, I.; Stenroos, S.; Ahti, T.; Burgaz, A.R.. |
| The complex Cladonia mediterranea belongs to the section Impexae and is formed by C. azorica, C. macaronesica and C. mediterranea. These species are basically distributed in the Mediterranean and Macaronesian Regions. In the present work the limits between the species of this complex are re-examined. To this end, the morphological characters were studied along with the secondary metabolites and the DNA sequences from three loci (ITS rDNA, IGS rDNA and rpb2). The morphological data were studied by principal component analysis (PCA), while the DNA sequences were analyzed using several approaches available to delimit species: genealogical concordance phylogenetic species recognition, species tree (BEAST* and spedeSTEM) and cohesion species recognition. In... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Coalescence; Iberian Peninsula; Integrative taxonomy; Lichen forming fungi; Macaronesia; Molecular systematic; Species delimitation; Taxonomy. |
| Ano: 2016 |
URL: http://www.repository.naturalis.nl/record/611813 |
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| Özgül-Siemund, A.; Ahrens, D.. |
| Female genitalia are widely underrepresented in taxonomic studies. Here we investigate the morphological variation among female copulation organs for a group of scarab beetles (Sericini) with similar ecology, external morphology and copulation mechanics. We examined traits qualitatively and quantitatively based on 80 and 18 species (genus Pleophylla), respectively. Additionally we explored whether female genitalia are affected by asymmetry. The vast diversity of slerotised structures including their shapes illustrated the high taxonomic and phylogenetic utility of female genitalia in this group. The morphometric analysis of Pleophylla, confirmed that sclerotisations in the ductus bursae are very suitable for species-level taxonomic purposes. Stable... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Beetles; Female genitalia; Integrative taxonomy; Melolonthinae; Morphology; 42.75; 42.64; 42.62. |
| Ano: 2015 |
URL: http://www.repository.naturalis.nl/record/579124 |
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| Vences, M.; Glaw, F.; Köhler, J.; Wollenberg, K.C.. |
| We provide a partial revision of the microhylid frogs of the genus Anodonthyla, endemic to Madagascar, based on comprehensive molecular, bioacoustic and morphological data sets that include newly collected specimens from multiple localities. The molecular trees provide strong evidence for the polyphyly of several nominal species as they were previously defined, especially of Anodonthyla boulengeri and A. nigrigularis. As a consequence, we here resurrect the nomen Mantella pollicaris Boettger as Anodonthyla pollicaris from the synonymy of A. boulengeri, and we describe four new species, all with strong genetic divergences to other nominal species: Anodonthyla emilei from Ranomafana National Park, a comparatively medium- sized species characterized by a... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Amphibia; Anura; Cophylinae; Integrative taxonomy; Microhylidae; New species; 42.82. |
| Ano: 2010 |
URL: http://www.repository.naturalis.nl/record/326751 |
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| Boluda, C.G.; Rico, V.J.; Divakar, P.K.; Nadyeina, O.; Myllys, L.; McMullin, R.T.; Zamora, J.C.; Scheidegger, C.; Hawksworth, D.L.. |
| In many lichen-forming fungi, molecular phylogenetic analyses lead to the discovery of cryptic species within traditional morphospecies. However, in some cases, molecular sequence data also questions the separation of phenotypically characterised species. Here we apply an integrative taxonomy approach ‒ including morphological, chemical, molecular, and distributional characters ‒ to re-assess species boundaries in a traditionally speciose group of hair lichens, Bryoria sect. Implexae. We sampled multilocus sequence and microsatellite data from 142 specimens from a broad intercontinental distribution. Molecular data included DNA sequences of the standard fungal markers ITS, IGS, GAPDH, two newly tested loci (FRBi15 and FRBi16), and SSR frequencies from 18... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Chemotypes; Cryptic species; Haplotypes; Incomplete lineage sorting; Integrative taxonomy; Microsatellites; Speciation; Species concepts. |
| Ano: 2019 |
URL: http://www.repository.naturalis.nl/record/660277 |
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| Freitas,André Victor Lucci; Barbosa,Eduardo Proença; Willmott,Keith Richard; Wahlberg,Niklas; Lamas,Gerardo. |
| ABSTRACT Sepona Freitas and Barbosa, gen. nov. is proposed for the Neotropical satyrine butterfly species Euptychia punctataWeymer, 1911 and its junior subjective synonyms Euptychia griseolaWeymer, 1911 and Taygetis indecisa Ribeiro, 1931. The new genus has a distinctive wing pattern and shape of the valvae in the male genitalia, the latter being a unique autapomorphy within the subtribe Euptychiina. Based on molecular data, this genus is not sister to any other single euptychiine genus, instead appearing as the sister to all remaining genera in the Taygetis clade. The present paper illustrates the complexity of the taxonomy of Euptychiina, and the importance of using different sources of evidence in taxonomic studies. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Harjesia; Integrative taxonomy; Pseudodebis; Satyrini; Yphthimoides. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262016000200157 |
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| Registros recuperados: 11 | |
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