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85 results for “evolutionary integration”
FIGURE 6. Evolutionary relationships between Allobates sumtuosus and 15 in An integrative appraisal of the diagnosis and distribution of Allobates sumtuosus (Morales, 2002) (Anura, Aromobatidae)
FIGURE 6. Evolutionary relationships between Allobates sumtuosus and 15 Allobates species distributed in Brazil and in the Guiana Shield region inferred from a maximum likelihood analysis on sequences of 16S rDNA. Samples belonging to typical and putative A. sumtuosus are highlighted in gray. Clade labels indicate support values from 5000 bootstrap replicates (only values above 70 are shown). Except when noted within parenthesis, sequences proceeded from samples collected at the referred type locality of each species. Due to differences in the length of sequences obtained from GenBank, positions with less than 95% site coverage (> 5% of sequences missing data for that position) were eliminated. A total of 346 positions were used in the final dataset.
Data from: The influence of climatic variability on morphological integration, evolutionary rates, and disparity in the Carnivora
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Data from: An integrative phylogenomic approach to elucidate the evolutionary history and divergence times of Neuropterida (Insecta: Holometabola)
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Data from: Towards robust evolutionary inference with integral projection models
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Data from: Integrative taxonomy recognizes evolutionary units despite widespread mitonuclear discordance: evidence from a rotifer cryptic species complex
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Data from: Eco-energetic consequences of evolutionary shifts in body size (after integrating the Corrigendum)
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Data from: Functional integration for enrolment constrains evolutionary variation of phacopid trilobites despite developmental modularity
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Data from: Evolutionary routes to biochemical innovation revealed by integrative analysis of a plant-defense related specialized metabolic pathway
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Data from: Evolutionary covariation in geometric morphometric data: analyzing integration, modularity, and allometry in a phylogenetic context
Quantifying integration and modularity of evolutionary changes in morphometric traits is crucial for understanding how organismal shapes evolve. For this purpose, comparative studies are necessary, which need to take into account the phylogenetic structure of interspecific data. This study applies several of the standard tools of geometric morphometrics, which mostly have been used in intraspecific studies, in the new context of analyzing integration and modularity based on comparative data. Morphometric methods such as principal component analysis, multivariate regression, partial least squares and modularity tests can be applied to phylogenetically independent contrasts of shape data. We illustrate this approach in an analysis of cranial evolution in 160 species from all orders of birds. Mapping the shape information onto the phylogeny indicates that there is a significant phylogenetic signal in skull shape. Multivariate regression of independent contrasts of shape on independent contrasts of size reveals clear evolutionary allometry. Regardless of whether or not a correction for allometry is used, evolutionary integration between the face and braincase is strong, and tests reject the hypothesis that the face and braincase are separate evolutionary modules. These analyses can easily be applied to other taxa and can be combined with other morphometric tools to address a wide range of questions about evolutionary patterns and processes.
Data from: Molecular paleobiology of early-branching animals integrating DNA and fossils elucidates the evolutionary history of hexactinellid sponges
Reconciliation of paleontological and molecular phylogenetic evidence holds great promise for a better understanding of the temporal succession of cladogenesis and character evolution, especially for taxa with a fragmentary fossil record and uncertain classification. In zoology, studies of this kind have largely been restricted to Bilateria. Hexactinellids (glass sponges) readily lend themselves to test such an approach for early-branching (non-bilaterian) animals: they have a long and rich fossil record, but for certain taxa paleontological evidence is still scarce or ambiguous. Furthermore, there is a lack of consensus for taxonomic interpretations, and discrepancies exist between neontological and paleontological classification systems. Using conservative fossil calibration constraints and the largest molecular phylogenetic data set assembled for this group, we infer divergence times of crown-group Hexactinellida in a Bayesian relaxed molecular clock framework. With some notable exceptions, our results are largely congruent with interpretations of the hexactinellid fossil record, but also indicate long periods of undocumented evolution for several groups. This study illustrates the potential of an integrated molecular/paleobiological approach to reconstructing the evolution of challenging groups of organisms.
Supplementary material 3 from: Chávez G, Thompson ME, Sánchez DA, Chávez-Arribasplata JC, Catenazzi A (2022) A needle in a haystack: Integrative taxonomy reveals the existence of a new small species of fossorial frog (Anura, Microhylidae, Synapturanus) from the vast lower Putumayo basin, Peru. Evolutionary Systematics 6(1): 9-20. https://doi.org/10.3897/evolsyst.6.80281
Supplementary File 1
Supplementary material 1 from: Chávez G, Thompson ME, Sánchez DA, Chávez-Arribasplata JC, Catenazzi A (2022) A needle in a haystack: Integrative taxonomy reveals the existence of a new small species of fossorial frog (Anura, Microhylidae, Synapturanus) from the vast lower Putumayo basin, Peru. Evolutionary Systematics 6(1): 9-20. https://doi.org/10.3897/evolsyst.6.80281
Appendix 1
Supplementary material 2 from: Chávez G, Thompson ME, Sánchez DA, Chávez-Arribasplata JC, Catenazzi A (2022) A needle in a haystack: Integrative taxonomy reveals the existence of a new small species of fossorial frog (Anura, Microhylidae, Synapturanus) from the vast lower Putumayo basin, Peru. Evolutionary Systematics 6(1): 9-20. https://doi.org/10.3897/evolsyst.6.80281
Appendix 2
Data from: An integrative phylogenomic approach illuminates the evolutionary history of cockroaches and termites (Blattodea)
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Data from: Integrating genomic and phenotypic data to evaluate alternative phylogenetic and species delimitation hypotheses in a recent evolutionary radiation of grasshoppers
Although resolving phylogenetic relationships and establishing species limits is a primary goal of systematics, these tasks remain challenging at both conceptual and analytical levels. Here, we integrated genomic and phenotypic data and employed a comprehensive suite of coalescent-based analyses to develop and evaluate competing phylogenetic and species delimitation hypotheses in a recent evolutionary radiation of grasshoppers (Chorthippus binotatus group) composed of two species and eight putative subspecies. To resolve the evolutionary relationships within this complex, we first evaluated alternative phylogenetic hypotheses arising from multiple schemes of genomic data processing and contrasted genetic-based inferences with different sources of phenotypic information. Second, we examined the importance of number of loci, demographic priors, number and kind of phenotypic characters, and sex-based trait variation for developing alternative species delimitation hypotheses. The best-supported topology was largely compatible with phenotypic data and showed the presence of two clades corresponding to the nominative species groups, one including three well-resolved lineages and the other comprising a four-lineage polytomy and a well-differentiated sister taxon. Integrative species delimitation analyses indicated that the number of employed loci had little impact on the obtained inferences but revealed the higher power provided by an increasing number of phenotypic characters and the usefulness of assessing their phylogenetic information-content and differences between sexes in among-taxa trait variation. Overall, our study highlights the importance of integrating multiple sources of information to test competing phylogenetic hypotheses and elucidate the evolutionary history of species complexes representing early-stages of divergence where conflicting inferences are more prone to appear.
Data from: Evolution of morphological integration in the skull of Carnivora (Mammalia): changes in Canidae lead to increased evolutionary potential of facial traits
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Data from: Integrating genomic and phenotypic data to evaluate alternative phylogenetic and species delimitation hypotheses in a recent evolutionary radiation of grasshoppers
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Data from: Integrating fossils, phylogenies, and niche models into biogeography to reveal ancient evolutionary history: the case of Hypericum (Hypericaceae)
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Data from: Evolutionary covariation in geometric morphometric data: analyzing integration, modularity, and allometry in a phylogenetic context
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Data from: Morphological integration in the hominin dentition: evolutionary, developmental, and functional factors.
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