ArticleJournal of evolutionary biology2015
Rate of evolutionary change in cranial morphology of the marsupial genus Monodelphis is constrained by the availability of additive genetic variation.
Article in Journal of evolutionary biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 42 citations in OpenAlex.
- Alternative Mutational Architectures Producing Identical M-Matrices can Lead to Different Patterns of Evolutionary Divergence.Genome biology and evolution · 2025Article
- Detecting natural selection in trait-trait coevolution.BMC ecology and evolution · 2023Article
- The pre-eminent role of directional selection in generating extreme morphological change in glyptodonts (Cingulata; Xenarthra).Proceedings. Biological sciences · 2022Article
- Measuring the magnitude of morphological integration: The effect of differences in morphometric representations and the inclusion of size.Evolution; international journal of organic evolution · 2019Article
- Individual variation of the masticatory system dominates 3D skull shape in the herbivory-adapted marsupial wombats.Frontiers in zoology · 2019Article
- The evolution of phenotypic integration: How directional selection reshapes covariation in mice.Evolution; international journal of organic evolution · 2017Article
- The relative contribution of drift and selection to phenotypic divergence: A test case using the horseshoe batsEcology and evolution · 2017Article
- How many more? Sample size determination in studies of morphological integration and evolvability.Methods in ecology and evolution · 2017Article
- Article
- Modularity: genes, development and evolution.Annual review of ecology, evolution, and systematics · 2016Article
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Authors and funding
6 authors at 5 institutions in 2 countries.
Funding
Abstract
We tested the hypothesis that the rate of marsupial cranial evolution is dependent on the distribution of genetic variation in multivariate space. To do so, we carried out a genetic analysis of cranial morphological variation in laboratory strains of Monodelphis domestica and used estimates of genetic covariation to analyse the morphological diversification of the Monodelphis brevicaudata species group. We found that within-species genetic variation is concentrated in only a few axes of the morphospace and that this strong genetic covariation influenced the rate of morphological diversification of the brevicaudata group, with between-species divergence occurring fastest when occurring along the genetic line of least resistance. Accounting for the geometric distribution of genetic variation also increased our ability to detect the selective regimen underlying species diversification, with several instances of selection only being detected when genetic covariances were taken into account. Therefore, this work directly links patterns of genetic covariation among traits to macroevolutionary patterns of morphological divergence. Our findings also suggest that the limited distribution of Monodelphis species in morphospace is the result of a complex interplay between the limited dimensionality of available genetic variation and strong stabilizing selection along two major axes of genetic variation.
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