Subject: New issue: Systematic Biology, Volume 75, Issue 1, January 2026

Volume 75, Issue 1, January 2026

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Machine Learning and New Inference Algorithms Virtual Issue: expanding what is possible in evolutionary biology and phylogenetic analysis

Discover the new Virtual Issue from Systematic Biology. This virtual issue assembles a series of papers that offer potential solutions and paths forward to address these and related challenges.

Discover the Virtual Issue today

75th Anniversary Special Collection

Systematic Biology's Seventy-Five Years

Robert C Thomson and Chris Simon

Seventy-Five Years of Systematic Biology: Looking Back, Moving Forward

Michael J Landis and Michael J Donoghue

Too Many Numbers?

F James Rohlf

Spotlight Article

The Explosive Radiation of the Neotropical Tillandsia Subgenus Tillandsia (Bromeliaceae) Has Been Accompanied by Pervasive Hybridization

Gil Yardeni and others

Research Articles

torchtree: Flexible Phylogenetic Model Development and Inference Using PyTorch

Mathieu Fourment and others

Coping with Ineffective Overlap in Multilocus Phylogenetics

Ana Serra Silva and others

Revisiting the Multispecies Coalescent Model Fit with an Example from a Complete Molecular Phylogeny of the Liolaemus wiegmannii Species Group (Squamata: Liolaemidae)

JoaquÃn Villamil and others

PhyloFusion'Fast and Easy Fusion of Rooted Phylogenetic Trees into Rooted Phylogenetic Networks

Louxin Zhang and others

Selecting a Window Size for Phylogenomic Analyses of Whole Genome Alignments Using AIC

Jeremias Ivan and others

ConvexML: Fast and Accurate Branch Length Estimation under Irreversible Mutation Models, Illustrated through Applications to CRISPR/Cas9-Based Lineage Tracing

Sebastian Prillo and others

But the Clock, Tick-Tock: An Empirical Case Study Highlights the Preeminence of Relaxed Clock Models in Total-Evidence Dating

NicolÃ¡s Mongiardino Koch and others

Invited Review

Practical Guide and Review of Fossil Tip-Dating in Phylogenetics

Nicola S Heckeberg and others

Correction

Correction to: The Fossilized Birth'Death Model Is Identifiable

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