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915 results for “morphological evolution”
Figure 1 from: Vanegas-Ríos JA, Serra Alanís WS, Azpelicueta MM, Litz T, Malabarba LR (2024) Population variation of Diapoma pampeana (Characiformes, Characidae, Stevardiinae) from an isolated coastal drainage in Uruguay, with new records: comparing morphological and molecular data. Zoosystematics and Evolution 100(1): 69-85. https://doi.org/10.3897/zse.100.112778
Figure 1 Coloration in life of D. pampeana (A, B) from the Pando stream, Canelones Uruguay. Photo by J. Pfleiderer.
Figure 6 from: Vanegas-Ríos JA, Serra Alanís WS, Azpelicueta MM, Litz T, Malabarba LR (2024) Population variation of Diapoma pampeana (Characiformes, Characidae, Stevardiinae) from an isolated coastal drainage in Uruguay, with new records: comparing morphological and molecular data. Zoosystematics and Evolution 100(1): 69-85. https://doi.org/10.3897/zse.100.112778
Figure 6 Bayesian topology of phylogenetic relationships among the analyzed Diapoma species (comparing specimens of D. pampeana from the Pando stream and Upper Negro basin) based on COI sequence data. Numbers at nodes correspond to posterior probabilities.
Figure 5 from: Parasram N, Santana W, Vallès Y, Windsor AМ, Vallès H (2024) Morphological and molecular support for Amphithrax verrucosus (H. Milne Edwards, 1832) and Amphithrax aculeatus (Herbst, 1790) (Crustacea, Decapoda, Brachyura) as valid species. Zoosystematics and Evolution 100(1): 15-30. https://doi.org/10.3897/zse.100.109192
Figure 5 Type specimens. A. Paralectotype of Cancer aculeatus, Herbst, 1790, dry preserved carapace without setae and with most of the spines broken (ZMB Herbst 79), locality: Antilles; B. Holotype of Mithrax plumosus Rathbun, 1901 (USNM 23775), ovig. female (CW: 37.0 mm; CL: 29.0 mm), locality: Puerto Rico; C. Holotype of Mithrax pilosus Rathbun, 1892, setae on carapace removed (USNM 16299), male (CW: 30.0 mm; CL: 28.0 mm), locality: Bahamas; D. Distal third of the right G1 of the holotype of Mithrax pilosus (USNM 16299) in pleonal view. Photos: A Kristina von Rintelen. B, C, D Amanda Windsor.
Supplementary material 6 from: Vanegas-Ríos JA, Serra Alanís WS, Azpelicueta MM, Litz T, Malabarba LR (2024) Population variation of Diapoma pampeana (Characiformes, Characidae, Stevardiinae) from an isolated coastal drainage in Uruguay, with new records: comparing morphological and molecular data. Zoosystematics and Evolution 100(1): 69-85. https://doi.org/10.3897/zse.100.112778
Uncorrected pairwise genetic distances using the COI data matrix
Figure 4 from: Parasram N, Santana W, Vallès Y, Windsor AМ, Vallès H (2024) Morphological and molecular support for Amphithrax verrucosus (H. Milne Edwards, 1832) and Amphithrax aculeatus (Herbst, 1790) (Crustacea, Decapoda, Brachyura) as valid species. Zoosystematics and Evolution 100(1): 15-30. https://doi.org/10.3897/zse.100.109192
Figure 4 Amphithrax verrucosus (H. Milne Edwards, 1832) adult male (BLSZ 218). A. Habitus, dorsal; B. Ventral view, locality: Barbados; C. Pleonal view of left G1 (BLSZ 228); D. Distal third of left G1. Scale bars: 20 mm (A, B); 10 mm (C). Photos: Nadeshinie Parasram.
Supplementary material 3 from: Vanegas-Ríos JA, Serra Alanís WS, Azpelicueta MM, Litz T, Malabarba LR (2024) Population variation of Diapoma pampeana (Characiformes, Characidae, Stevardiinae) from an isolated coastal drainage in Uruguay, with new records: comparing morphological and molecular data. Zoosystematics and Evolution 100(1): 69-85. https://doi.org/10.3897/zse.100.112778
Total variance accounted for the PCA performed for the morphometric and meristic data
Supplementary material 1 from: Vanegas-Ríos JA, Serra Alanís WS, Azpelicueta MM, Litz T, Malabarba LR (2024) Population variation of Diapoma pampeana (Characiformes, Characidae, Stevardiinae) from an isolated coastal drainage in Uruguay, with new records: comparing morphological and molecular data. Zoosystematics and Evolution 100(1): 69-85. https://doi.org/10.3897/zse.100.112778
All COI sequences analyzed in the present work
Figure 2 from: Vanegas-Ríos JA, Serra Alanís WS, Azpelicueta MM, Litz T, Malabarba LR (2024) Population variation of Diapoma pampeana (Characiformes, Characidae, Stevardiinae) from an isolated coastal drainage in Uruguay, with new records: comparing morphological and molecular data. Zoosystematics and Evolution 100(1): 69-85. https://doi.org/10.3897/zse.100.112778
Figure 2 Extern morphology of studied specimens of Diapoma pampeana. A. MLP 11443, male, 30.6 mm SL, Uruguay, Pando Stream; B. MLP 11445, female, 35.1 mm SL, Uruguay, Pando Stream; C. MHNM 1125, female, 31.3 mm SL, Uruguay, Canelón Grande Stream; D. MHNM 4018, male, 29.8 mm SL, Uruguay, marginal lagoon to Rio Yi; E. MHNM 4018, female, 29.3 mm SL, Uruguay, marginal lagoon to Rio Yi. Photographs of the specimens from the Upper Negro are available in Ito et al. (2022). Scale bar: 1 mm.
Figure 5 from: Vanegas-Ríos JA, Serra Alanís WS, Azpelicueta MM, Litz T, Malabarba LR (2024) Population variation of Diapoma pampeana (Characiformes, Characidae, Stevardiinae) from an isolated coastal drainage in Uruguay, with new records: comparing morphological and molecular data. Zoosystematics and Evolution 100(1): 69-85. https://doi.org/10.3897/zse.100.112778
Figure 5 Neighbor-Joining topology of analyzed Diapoma specimens based on Tamura-Nei model and COI sequence data. Bootstrap values (10000 replicates) are shown below the branches. SBL = 0.783.
Figure 1 from: Parasram N, Santana W, Vallès Y, Windsor AМ, Vallès H (2024) Morphological and molecular support for Amphithrax verrucosus (H. Milne Edwards, 1832) and Amphithrax aculeatus (Herbst, 1790) (Crustacea, Decapoda, Brachyura) as valid species. Zoosystematics and Evolution 100(1): 15-30. https://doi.org/10.3897/zse.100.109192
Figure 1 A. Map of Barbados with sampling locations during this study and position of Barbados (red circle) within the Caribbean region; B. Nearshore rubble habitat (exposed at low tide); C. A cluster of cage crab traps in subtidal habitat. Photos: Nadeshinie Parasram.
Figure 4 from: Yang L, He Q, Yao Z (2024) Taxonomic study of four closely-related species of the Pholcus yichengicus species group (Araneae, Pholcidae) from China's Qinling Mountains: An integrated morphological and molecular approach. Zoosystematics and Evolution 100(1): 279-289. https://doi.org/10.3897/zse.100.115633
Figure 4 Pholcus ankang sp. nov., holotype male (C–F) and paratype female (A, B, G, H) A. Epigyne, ventral view; B. Vulva, dorsal view; C. Bulbal apophyses, prolateral view, arrow 1 indicates latero-median protrusion, arrow 2 indicates angular median branch; D. Chelicerae, frontal view; E–H. Habitus (E, G. Dorsal view; F. Lateral view; H. Ventral view). Abbreviations: a = appendix, b = bulb, da = distal apophysis, e = embolus, fa = frontal apophysis, pa = proximo-lateral apophysis, pp = pore plate, u = uncus. Scale bars: 0.20 mm (A–D); 1.00 mm (E–H).
Figure 6 from: Yang L, He Q, Yao Z (2024) Taxonomic study of four closely-related species of the Pholcus yichengicus species group (Araneae, Pholcidae) from China's Qinling Mountains: An integrated morphological and molecular approach. Zoosystematics and Evolution 100(1): 279-289. https://doi.org/10.3897/zse.100.115633
Figure 6 Pholcus baoji sp. nov., holotype male (C–F) and paratype female (A, B, G, H) A. Epigyne, ventral view; B. Vulva, dorsal view; C. Bulbal apophyses, prolateral view, arrow 1 indicates latero-median protrusion, arrow 2 indicates slender median branch; D. Chelicerae, frontal view; E–H. Habitus (E, G. Dorsal view; F. Lateral view; H. Ventral view). Abbreviations: a = appendix, b = bulb, da = distal apophysis, e = embolus, fa = frontal apophysis, pa = proximo-lateral apophysis, pp = pore plate, u = uncus. Scale bars: 0.20 mm (A–D); 1.00 mm (E–H).
Figure 3 from: Yang L, He Q, Yao Z (2024) Taxonomic study of four closely-related species of the Pholcus yichengicus species group (Araneae, Pholcidae) from China's Qinling Mountains: An integrated morphological and molecular approach. Zoosystematics and Evolution 100(1): 279-289. https://doi.org/10.3897/zse.100.115633
Figure 3 Pholcus ankang sp. nov., holotype male A, B. Pedipalp (A. Prolateral view; B. Retrolateral view); C, D. Distal part of procursus (C. Prolateral view, arrow 1 indicates distal membranous process, arrow 2 indicates sclerotised prolatero-subdistal apophysis; D. Dorsal view, arrows 1, 2 indicate dorsal spines, arrow 3 indicates angular part of raised prolatero-subdistal membranous edge, arrow 4 indicates latero-distal part of sclerotised prolatero-subdistal apophysis). Abbreviations: a = appendix, b = bulb, e = embolus, pr = procursus, u = uncus. Scale bars: 0.20 mm (A, B); 0.10 mm (C, D).
Figure 2 from: Yang L, He Q, Yao Z (2024) Taxonomic study of four closely-related species of the Pholcus yichengicus species group (Araneae, Pholcidae) from China's Qinling Mountains: An integrated morphological and molecular approach. Zoosystematics and Evolution 100(1): 279-289. https://doi.org/10.3897/zse.100.115633
Figure 2 The results of species delimitation conducted by the ABGD, GMYC, bPTP and BPP analyses; different colours of the bars represent the different species (Phylogenetic tree was inferred from ML analysis, bootstrap values are provided at the nodes).
Figure 5 from: Yang L, He Q, Yao Z (2024) Taxonomic study of four closely-related species of the Pholcus yichengicus species group (Araneae, Pholcidae) from China's Qinling Mountains: An integrated morphological and molecular approach. Zoosystematics and Evolution 100(1): 279-289. https://doi.org/10.3897/zse.100.115633
Figure 5 Pholcus baoji sp. nov., holotype male A, B. Pedipalp (A. Prolateral view; B. Retrolateral view); C, D. Distal part of procursus (C. Prolateral view, arrow 1 indicates distal membranous process, arrow 2 indicates sclerotised prolatero-subdistal apophysis; D. Dorsal view, arrows 1, 2 indicate dorsal spines, arrow 3 indicates rectangular part of raised prolatero-subdistal membranous edge, arrow 4 indicates latero-distal part of sclerotised prolatero-subdistal apophysis). Abbreviations: a = appendix, b = bulb, e = embolus, pr = procursus, u = uncus. Scale bars: 0.20 mm (A, B); 0.10 mm (C, D).
Figure 1 from: Yang L, He Q, Yao Z (2024) Taxonomic study of four closely-related species of the Pholcus yichengicus species group (Araneae, Pholcidae) from China's Qinling Mountains: An integrated morphological and molecular approach. Zoosystematics and Evolution 100(1): 279-289. https://doi.org/10.3897/zse.100.115633
Figure 1 Distribution records of four closely-related species of Pholcus from the Qinling Mountains, China. 1.Pholcus ankang sp. nov.; 2.P. baoji sp. nov.; 3.P. ovatus; 4.P. taibaiensis.
Genome size drives morphological evolution in organ-specific ways
<p class="MsoNormal">Morphogenesis is an emergent property of biochemical and cellular interactions during development. Genome size and the correlated trait of cell size can influence these interactions through effects on developmental rate and tissue geometry, ultimately driving the evolution of morphology. We tested whether variation in genome and body size is related to morphological variation in the heart and liver using nine species of the salamander genus <em>Plethodon</em> (genome sizes 29–67 gigabases). Our results show that overall organ size is a function of body size, whereas tissue structure changes dramatically with evolutionary increases in genome size. In the heart, increased genome size is correlated with a reduction of myocardia in the ventricle, yielding proportionally less force–producing mass and greater intertrabecular space. In the liver, increased genome size is correlated with fewer and larger vascular structures, positioning hepatocytes farther from the circulatory vessels that transport key metabolites. Although these structural changes should have obvious impacts on organ function, their effects on organismal performance and fitness may be negligible because low metabolic rates in salamanders relax selective pressure on function of key metabolic organs. Overall, this study suggests large genome and cell size influence the developmental systems involved in heart and liver morphogenesis.</p>
Figure 9 from: Lima POV, Simone LRL (2018) Revision of Platydoris angustipes and description of a new species of Platydoris (Gastropoda: Nudibranchia) from southeastern Brazil based on comparative morphology. Zoosystematics and Evolution 94(1): 1-15. https://doi.org/10.3897/zse.94.14959
Figure 9 Platydoris guarani. Odontophore. A dorsal view with radula B same, ventral view C same, dorsal view with removed radula D same, dorsal view, with folded down muscles. Scale bars: 2 mm.
Figure 7 from: Lima POV, Simone LRL (2018) Revision of Platydoris angustipes and description of a new species of Platydoris (Gastropoda: Nudibranchia) from southeastern Brazil based on comparative morphology. Zoosystematics and Evolution 94(1): 1-15. https://doi.org/10.3897/zse.94.14959
Figure 7 Platydoris guarani, living animals. A. Dorsal view, specimen from Papagaio, Cabo Frio, Rio de Janeiro (MZSP 97331). B. Same, ventral view. C. Living animal with spawning, specimen from Enseada da Meia Lua, Cabo Frio, Rio de Janeiro (MZSP 97625). All photograph by V. Padula.
Figure 6 from: Lima POV, Simone LRL (2018) Revision of Platydoris angustipes and description of a new species of Platydoris (Gastropoda: Nudibranchia) from southeastern Brazil based on comparative morphology. Zoosystematics and Evolution 94(1): 1-15. https://doi.org/10.3897/zse.94.14959
Figure 6 SEM of radula of Platydoris angustipes. A panoramic view B central region with rachidian tooth absent C lateral teeth. Scale bars: 300 µm (A); 100 µm (B); 30 µm (C).
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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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.