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351 results for “Species pair”
Beyond gene flow: (non)-parallelism of secondary contact in a pair of highly differentiated sibling species
<p>Replicated secondary contact zones can provide insights on the barriers to gene flow that are important during speciation and can reveal to which degree secondary contact may result in similar evolutionary outcomes. Here, we studied two secondary contact zones between highly differentiated Alpine butterflies<em> </em>of the genus <em>Erebia</em> using whole-genome re-sequencing data. We assessed the genomic relationships between populations and species and find hybridization to be rare, with no to little current or historical introgression in either contact zone. There are large similarities between the contact zones, consistent with an allopatric origin of interspecific differentiation, with no indications for ongoing reinforcing selection. Consistent with expected reduced effective population size, we further find that scaffolds related to the Z-chromosome show increased differentiation compared to the already high levels across the entire genome, which could also hint towards a contribution of the Z chromosome to species divergence in this system. Finally, we detected the presence of the endosymbiont <em>Wolbachia</em>, which can cause reproductive isolation between its hosts, in all <em>E. cassioides</em>, while it appears to be fully or largely absent in contact zone populations of <em>E. tyndarus</em>. We discuss how this rare pattern may have arisen and how it may have affected the dynamics of speciation upon secondary contact.</p>
Figure 2 in A genetic method to differentiate Petromyzon marinus ammocoetes from those of the paired species Lampetra fluviatilis and L. planeri
Figure 2. - PCR-RFLP results of the 560 bp Cytb fragment using HinfI restriction enzyme. Pistes 1-2: L. fluviatilis; 3: Ladder 100 bp; 4 to 6: L. planeri; 7 to 11: P. marinus; 12: Ladder Bacteriophage lambda digested by EcoR1- HindIII.
Figure 1. - Study stream locations where lamprey were collected. 1 in A genetic method to differentiate Petromyzon marinus ammocoetes from those of the paired species Lampetra fluviatilis and L. planeri
Figure 1. - Study stream locations where lamprey were collected. 1: Gironde basin; 1a: Livenne River; 1b: Dronne River; 1c: Dordogne River; 1d: Cere River; 2: Loire basin; 3: Meuse basin.
Linked collectors and determiners for: A mountain of millipedes VIII. The genus Aquattuor Frederiksen, 2013 revisited - a new species from the Udzungwa Mts, Tanzania, another from the Nguru Mts, and introduction of the first pair of male legs as a source of taxonomic characters (Diplopoda, Spirostreptida, Odontopygidae).
Natural history specimen data linked to collectors and determiners held within, "A mountain of millipedes VIII. The genus Aquattuor Frederiksen, 2013 revisited - a new species from the Udzungwa Mts, Tanzania, another from the Nguru Mts, and introduction of the first pair of male legs as a source of taxonomic characters (Diplopoda, Spirostreptida, Odontopygidae)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/c906d9cd-cfcb-43db-a24c-b57b39d9184b">https://bionomia.net/dataset/c906d9cd-cfcb-43db-a24c-b57b39d9184b</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/c906d9cd-cfcb-43db-a24c-b57b39d9184b">https://gbif.org/dataset/c906d9cd-cfcb-43db-a24c-b57b39d9184b</a>. Formatted as a Frictionless Data package.
Linked collectors and determiners for: Revision of the Old World species of the genus Tephritis (Diptera, Tephritidae) with a pair of isolated apical spots.
Natural history specimen data linked to collectors and determiners held within, "Revision of the Old World species of the genus Tephritis (Diptera, Tephritidae) with a pair of isolated apical spots". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/23c131dd-5ac6-4ce7-ba1b-7baf3c4e5e34">https://bionomia.net/dataset/23c131dd-5ac6-4ce7-ba1b-7baf3c4e5e34</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/23c131dd-5ac6-4ce7-ba1b-7baf3c4e5e34">https://gbif.org/dataset/23c131dd-5ac6-4ce7-ba1b-7baf3c4e5e34</a>. Formatted as a Frictionless Data package.
Fig. 8 in Description of two new species forming a sympatric species pair of Crenicichla (Teleostei: Cichlidae) endemic to the Piray Guazú River in the Paraná River Basin, Misiones, Argentina and belonging to the C. mandelburgeri species complex
Fig. 8. Overview of phylogenetic relationships and molecular and morphological differentiation of C. ama sp. nov. and C. aravera sp. nov. and its parallel species pair (C. ypo Casciotta, Almirón, Piálek, Gómez & Říčan, 2010 and C. yjhui Piálek, Casciotta, Almirón & Říčan, 2019). A. Summary of phylogenetic relationships within the C. mandelburgeri species complex with a nDNA ddRAD SVDQ species tree analysis as main topology focusing on the parallel species pairs in the Piray Guazú (the two new species) and Urugua-í River basins. Species tree is based on 60% SNP-representation matrix using fixed (= homozygotic sites). Red and blue basal branches and nodes in the species tree topology show biogeography (Red: Iguazú, Blue: Middle Paraná). Numbers in parentheses are total numbers of analyzed individuals (in nDNA/ in mtDNA). Numbers at nodes show bootstrap support values. Species colours as in Fig. 5. Blue arrows show nDNA introgression from C. mandelburgeri into C. aravera and C. yjhui. Modified from Říčan et al. (2021b). B. Alternative topology to the right of the tree represents mtDNA relationships of species in the two focal species pairs. Only C. ypo does not have a mitonuclear phylogenetic conflict. Modified from Říčan et al. (2021b). C. Inference of population structure based on the Admixture analysis for the two focal species pairs. Note majority assignment of C. yjhui and C. aravera with C. ypo and C. ama and partial assignment to C. mandelburgeri sensu lato at K10 to K13, and complete separation of all species at K14. Modified from Říčan et al. (2021b). D. Morphometric variation and discrimination of the two species pairs of sympatric species from the Piray Guazú (C. ama, C. aravera) and Urugua-í (C. ypo, C. yjhui) River basins analyzed by PCA based on holotype and paratype specimens ≥ 70 mm SL. Morphological measurements followed Kullander's (1986) methodology for Crenicichla Heckel, 1840 and were used as proportional values in % of SL. Note complete separation of species between ecomorphs (sympatric) and partial separation within ecomorphs (allopatric). Modified from Říčan et al. (2021b).
Fig. 7 in Description of two new species forming a sympatric species pair of Crenicichla (Teleostei: Cichlidae) endemic to the Piray Guazú River in the Paraná River Basin, Misiones, Argentina and belonging to the C. mandelburgeri species complex
Fig. 7. Paratype locality of C. ama sp. nov., tributary to upper arroyo Piray Guazú on RP16 23 km from San Pedro (26°35′45.90″ S, 54°16′59.96″ W), 26 November 2016. Crenicichla aravera sp. nov. is absent at this locality.
Fig. 4 in Description of two new species forming a sympatric species pair of Crenicichla (Teleostei: Cichlidae) endemic to the Piray Guazú River in the Paraná River Basin, Misiones, Argentina and belonging to the C. mandelburgeri species complex
Fig. 4. Lower pharyngeal tooth plate in occlusal view. A. Crenicichla ama sp. nov., paratype (MLP 11182, 94.5 mm). B. Crenicichla aravera sp. nov., paratype (MLP 11452, 93.7 mm). Scale bars = 1 mm.
Fig. 6 in Description of two new species forming a sympatric species pair of Crenicichla (Teleostei: Cichlidae) endemic to the Piray Guazú River in the Paraná River Basin, Misiones, Argentina and belonging to the C. mandelburgeri species complex
Fig. 6. Type locality of C. ama sp. nov. and C. aravera sp. nov., upper arroyo Piray Guazú on RP20 (26°26′34.1″ S, 54°08′29.4″ W), 18 February 2012.
Fig. 5. A in Description of two new species forming a sympatric species pair of Crenicichla (Teleostei: Cichlidae) endemic to the Piray Guazú River in the Paraná River Basin, Misiones, Argentina and belonging to the C. mandelburgeri species complex
Fig. 5. A.Topographic map of the Middle Paraná Basin. B. Satellite map of the Piray Guazú Basin showing distribution of the sympatric C. ama sp. nov. (dark green) and C. aravera sp. nov. (light green), and also of other species in the Iguazú (red) and the Middle Paraná (C. ypo Casciotta, Almirón, Piálek, Gómez & Říčan, 2010: dark orange; C. yjhui: orange; C. hu: yellow; C. mandelburgeri sensu lato: blue, C. gillmorlisi: grey; C. taikyra: pink). Large and small dots in the Piray Guazú Basin show localities where the species is common or rare, respectively. Dark blue and light blue dots show the northern and southern mtDNA clades of C. mandelburgeri, respectively. White bars show location of significant waterfalls. White dot (marked with X in B) shows an upstream locality in the Piray Guazú where both C. ama and C. aravera are absent. Locality 1 (in B, marked with a star) is the type locality of both new species. Localities 2 and 3 (in B) are paratype localities of the two new species. Inset in A shows the parallel species pairs in the Piray Guazú and Urugua-í basins.
Fig. 2 in Description of two new species forming a sympatric species pair of Crenicichla (Teleostei: Cichlidae) endemic to the Piray Guazú River in the Paraná River Basin, Misiones, Argentina and belonging to the C. mandelburgeri species complex
Fig. 2. Crenicichla ama sp. nov., live specimens. A–B. Male paratypes. C–E. Female paratypes. A. MLP 11448, tributary to upper arroyo Piray Guazú on RP16 23 km from San Pedro, 26°35′45.90″ S, 54°16′59.96″ W, November 26 2016. B. MLP 11182, 94.5 mm. C–D. MLP 11180. E. MLP 11448, tributary to upper arroyo Piray Guazú on RP16 23 km from San Pedro, 26°35′45.90″ S, 54°16′59.96″ W, November 26 2016).
Fig. 3 in Description of two new species forming a sympatric species pair of Crenicichla (Teleostei: Cichlidae) endemic to the Piray Guazú River in the Paraná River Basin, Misiones, Argentina and belonging to the C. mandelburgeri species complex
Fig. 3. Crenicichla aravera sp. nov., live specimens. A. Holotype, ♂ (MLP 11450). B. Paratype, ♂ subadult (MLP 11451, 81.2 mm). C–D. Female paratypes (MLP 11451, 83.3 mm; MLP 11452, 93.7 mm), upper arroyo Piray Guazú on RP20, February 18 2012.
Fig. 1. A in Description of two new species forming a sympatric species pair of Crenicichla (Teleostei: Cichlidae) endemic to the Piray Guazú River in the Paraná River Basin, Misiones, Argentina and belonging to the C. mandelburgeri species complex
Fig. 1. A. Crenicichla ama sp. nov., holotype, ♂ (MLP 11446, 105.8 mm). B. Crenicichla aravera sp. nov., holotype, ♂ (MLP 11450, 102.5 mm).
A comparison of genomic islands of differentiation across three young avian species pairs
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Selection shapes the genomic landscape of introgressed ancestry in a pair of sympatric sea urchin species
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Supplementary material for "Analyzing potential niche shifts in alien pairs of mantis species (Insecta, Mantodea), with comments on the current taxonomic and ecological knowledge"
<p>###Supplementary data for "Analyzing potential niche shifts in alien pairs of mantis species (Insecta, Mantodea), with comments on the current taxonomic and ecological knowledge"</p><p>angui_intra: intra-species analyses for <i>Tenodera angustipennis</i>, with both complete and trimmed dataset.</p><p>contrhierodula: intra-species analyses for the <i>Hierodula</i> species with controversial status (<i>H. transcaucasica</i>/<i>H. tenuidentata</i>). It includes analyses between <i>H. transcaucasica</i> and <i>H. tenuidentata sensu stricto</i> and the populations treated as separated species.</p><p>hierodula_europe: inter-species analysis with the two <i>Hierodula</i> present in Europe.</p><p>kendall: scripts and table used for calculating Kendall's rank correlation.</p><p>pate_intra: intra-species analyses for <i>Hierodula patellifera</i>, with both complete and trimmed (no India, Nepal and Philippines points) datasets. There is also the analyses between Asian distribution and India, Nepal and Philippines points</p><p>sinensis_intra: intra-species analyses for <i>Tenodera sinesis</i>, with both complete and trimmed datasets.</p><p>tenodera_europe: inter-species analysis with the two <i>Tenodera</i> present in North America, with both complete and trimmed datasets.</p><p>####NOTE</p><p>I did not include the raw presence points (the elaborated ones are together with the values in a csv file per each folder) and the wordlclim variables. For the latter, you can get them from the WorldClim website. If you want the raw presence points, I will give them on request</p><p>WARNING: AN ITALIAN LOCALE HAS BEEN USED FOR THIS ANALYSES; IF YOU HAVE ANY FORMAT ISSUE WITH THE CSV, CONSIDER USING THIS FOR IMPORTING INTO R:<br><br>read_csv("namefile.csv", locale = locale(decimal_mark = ",", grouping_mark = "."))</p><p> </p><p>IF THAT DOES NOT WORK, PLEASE CONTACT ME</p>
Fig. 4 in New Species Of Pachyrhynchus Germar, 1824 And M Acro Cyrtus H Eller, 1912 (C Oleop Tera: Curculionidae) From The Marinduque Island (Philippines) As A New Example Of Mimetic Species Pair
Fig. 4. Habitus of Macrocyrtus rukmaneae sp. n. (A – lateral view, B– dorsal view).
Fig. 5 in New Species Of Pachyrhynchus Germar, 1824 And M Acro Cyrtus H Eller, 1912 (C Oleop Tera: Curculionidae) From The Marinduque Island (Philippines) As A New Example Of Mimetic Species Pair
Fig. 5. Distribution of Macrocyrtus rukmaneae sp. n. in Marinduque Isl.
Fig. 2. Pachyrhynchus loheri Schultze, 1917 in New Species Of Pachyrhynchus Germar, 1824 And M Acro Cyrtus H Eller, 1912 (C Oleop Tera: Curculionidae) From The Marinduque Island (Philippines) As A New Example Of Mimetic Species Pair
Fig. 2. Pachyrhynchus loheri Schultze, 1917 (Schultze 1917).
Fig. 3 in New Species Of Pachyrhynchus Germar, 1824 And M Acro Cyrtus H Eller, 1912 (C Oleop Tera: Curculionidae) From The Marinduque Island (Philippines) As A New Example Of Mimetic Species Pair
Fig. 3. Distribution of Pachyrhynchus rukmaneae sp. n. in Marinduque Isl.
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.