Results 111 to 120 of about 14,903 (177)

Phylogenetic constraints, conservatism, and convergence shape three‐dimensional variation in flower morphology of a tropical orchid radiation

open access: yesThe Plant Journal, Volume 126, Issue 3, May 2026.
SUMMARY Despite advances in phylogenetic comparative methods, challenges remain to distinguish between various macroevolutionary patterns of phenotypic variation (e.g., conservatism, convergence) and to infer their underlying proximate (genetic, developmental) or ultimate (selective versus neutral) causes.
Silvia Artuso   +4 more
wiley   +1 more source

Metastable Evolutionary Dynamics: Crossing Fitness Barriers or Escaping via Neutral Paths?

open access: yes, 1999
We analytically study the dynamics of evolving populations that exhibit metastability on the level of phenotype or fitness. In constant selective environments, such metastable behavior is caused by two qualitatively different mechanisms. One the one hand,
Crutchfield, James P.   +1 more
core   +1 more source

Evaluating Bayesian Morphological Clocks for Estimating a Dated Phylogeny in a Relict and Fossil‐Rich Family of Wasps (Hymenoptera, Chrysidoidea)

open access: yesZoologica Scripta, Volume 55, Issue 3, Page 448-463, May 2026.
ABSTRACT In recent years, a wide array of tools originally developed for molecular dating analyses has been adapted for use within a morphological clock perspective. This is of paramount relevance for taxonomic groups that cannot be sampled in forms suitable for DNA extraction.
Anderson Lepeco   +2 more
wiley   +1 more source

An unusual Actinobacillus equuli strain isolated from a rabbit with Tyzzer's disease [PDF]

open access: yes, 2007
BAELE, A   +6 more
core   +2 more sources

Early-life stasis in partial seasonal migration is underpinned by among-cohort variation in migratory plasticity and selective disappearance. [PDF]

open access: yesJ Anim Ecol
Ugland CR   +13 more
europepmc   +1 more source

YAP1 Dysfunction Promotes Molecular Properties Linked to Breast Cancer Susceptibility. [PDF]

open access: yesCancer Prev Res (Phila)
Fresques T   +11 more
europepmc   +1 more source

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