{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T03:00:33Z","timestamp":1790650833701,"version":"4.1.0"},"reference-count":103,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T00:00:00Z","timestamp":1790553600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T00:00:00Z","timestamp":1790553600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Ecology and Evolution"],"published-print":{"date-parts":[[2026,10]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    With advances in genomic technologies, it has become increasingly feasible to generate large numbers of loci to address population genetic and phylogeographic questions. Nevertheless, many widespread and relatively abundant species remain unsampled using molecular approaches. The lined snake (\n                    <jats:styled-content style=\"fixed-case\">\n                      <jats:italic>Tropidoclonion lineatum<\/jats:italic>\n                    <\/jats:styled-content>\n                    ), a semi\u2010fossorial snake distributed across the Great Plains, is one such example. Despite the historical recognition of multiple subspecies based on noted variation in morphological characters, no formal molecular investigation of population structure has been conducted to date due to a paucity of vouchered genetic samples. Here, we present the first genomic assessment of range\u2010wide population structure in\n                    <jats:styled-content style=\"fixed-case\">\n                      <jats:italic>T. lineatum<\/jats:italic>\n                    <\/jats:styled-content>\n                    using genome\u2010wide single\u2010nucleotide polymorphisms (SNPs) generated via triple\u2010enzyme restriction site\u2010associated DNA (3RAD) sequencing. Our results indicate largely continuous gene flow across the Great Plains, questioning the validity of the recognized subspecies. In contrast, populations at the northern range edge in South Dakota exhibit relative genetic homogeneity and modest differentiation from more southern populations, potentially reflecting recent isolation or increased genetic drift in peripheral habitats. Given the species' endangered status in South Dakota, these findings highlight the conservation importance of range\u2010edge populations while underscoring the need for denser, range\u2010wide sampling\u2014particularly in putatively disjunct regions\u2014to fully characterize genetic diversity in\n                    <jats:styled-content style=\"fixed-case\">\n                      <jats:italic>T. lineatum<\/jats:italic>\n                    <\/jats:styled-content>\n                    .\n                  <\/jats:p>","DOI":"10.1002\/ece3.74431","type":"journal-article","created":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T02:52:05Z","timestamp":1790650325000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Genomic Investigation of Population Structure in a Secretive, Semi\u2010Fossorial Snake (Colubridae:\n                    <i>Tropidoclonion lineatum<\/i>\n                    ) Across the Great Plains"],"prefix":"10.1002","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0009-0005-4356-3916","authenticated-orcid":false,"given":"Taylor","family":"Probst","sequence":"first","affiliation":[{"name":"School of Biological Sciences University of Oklahoma  Norman Oklahoma USA"},{"name":"Oklahoma Biological Survey University of Oklahoma  Norman Oklahoma USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7573-096X","authenticated-orcid":false,"given":"Cameron D.","family":"Siler","sequence":"additional","affiliation":[{"name":"Oklahoma Biological Survey University of Oklahoma  Norman Oklahoma USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5128-4064","authenticated-orcid":false,"given":"Drew R.","family":"Davis","sequence":"additional","affiliation":[{"name":"Department of Biology Eastern New Mexico University  Portales New Mexico USA"},{"name":"Department of Integrative Biology The University of Texas at Austin  Austin Texas USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,9,28]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1006\/mpev.2001.1024"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/1365\u20102435.14557"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1146\/annurev\u2010ecolsys\u2010012120\u2010091002"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/mec.12276"},{"issue":"1","key":"e_1_2_10_6_1","first-page":"22","article-title":"The Lined Snake","volume":"67","author":"Backlund D.","year":"2000","journal-title":"South Dakota Conservation Digest"},{"key":"e_1_2_10_7_1","first-page":"29","article-title":"A Checklist and Distribution Maps of the Amphibians and Reptiles of South Dakota","volume":"26","author":"Ballinger R. 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