Climate niches structure a regional hybrid zone in <em>Sphagnum</em> (peatmoss, Bryophyta)
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Premise: Hybridization is an important evolutionary process across all groups of embryophyte land plants, but relatively little is known about hybridization and introgression in spore producing plants with a dominant gametophyte life cycle stage (i.e., bryophytes). The Sphagnum magellanicum complex, with four North American species, is proving to be a valuable system for studying population genomics, speciation, and climate adaptation. This paper focuses on hybridization between the four species, with focus on a regional zone where virtually all plants in the two most recently diverged species (S. diabolicum, S. magniae) show genetic admixture. Methods: Analyses of population genetics and introgression utilized three types of molecular data: RADseq, âRADseq-likeâ data derived from in silico digestion of genome sequences, and species-specific barcode markers developed previously for this group. 582 gametophytes were sampled from 79 collecting sites representing 23 U.S. states and five Ca..., , # Data from: Climate niches structure a regional hybrid zone in *Sphagnum* (peatmoss, Bryophyta) [https://doi.org/10.5061/dryad.mgqnk99bn](https://doi.org/10.5061/dryad.mgqnk99bn) Principal Investigator/Corresponding author: A. Jonathan Shaw, Duke University, [shaw@duke.edu](mailto:shaw@duke.edu) Data prepared by: Aaron M. Duffy, Duke University, [aduffy70@gmail.com](mailto:aduffy70@gmail.com) Co-investigators: Blanka Aguero, Duke University Marta Nieto-Lugilde, Duke University Karn Imwattana, Chulalongkorn University Sean Robinson, SUNY Oneonta Scott Schuette, Western Pennsylvania Conservancy Richard Wilkens, Salisbury University Joseph Yavitt, Cornell University David J. Weston, Oak Ridge National Laboratory Brian Piatkowski, Mayo Clinic Gustaf Granath, Uppsala University Date collected: 2021-2024 These datasets DNA sequences for *Sphagnum magellanicum* group plants collected from the U.S. states of North Carolina and Georgia. Collection locations for specific samples included i...,
