{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T03:00:13Z","timestamp":1790132413697,"version":"4.0.1"},"reference-count":60,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T00:00:00Z","timestamp":1790035200000},"content-version":"vor","delay-in-days":21,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T00:00:00Z","timestamp":1788220800000},"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":["Physiologia Plantarum"],"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Reproductive barriers in wild tomato relatives limit the introgression of valuable stress\u2010resistance traits into cultivated tomato, yet the molecular mechanisms governing these barriers in\n                    <jats:styled-content style=\"fixed-case\">\n                      <jats:italic>Solanum chilense<\/jats:italic>\n                    <\/jats:styled-content>\n                    remain poorly understood compared to model species like\n                    <jats:styled-content style=\"fixed-case\">\n                      <jats:italic>Nicotiana alata<\/jats:italic>\n                    <\/jats:styled-content>\n                    or\n                    <jats:styled-content style=\"fixed-case\">\n                      <jats:italic>Solanum pennellii<\/jats:italic>\n                    <\/jats:styled-content>\n                    . This study aimed to characterize the phenotypic and transcriptional architecture of gametophytic self\u2010incompatibility and unilateral incompatibility in\n                    <jats:styled-content style=\"fixed-case\">\n                      <jats:italic>Solanum chilense<\/jats:italic>\n                    <\/jats:styled-content>\n                    and its interspecific hybrids with\n                    <jats:styled-content style=\"fixed-case\">\n                      <jats:italic>Solanum lycopersicum<\/jats:italic>\n                    <\/jats:styled-content>\n                    . We combined phenotypic assays of pollen tube growth and fruit set with quantitative gene expression profiling of candidate pistil\u2010side factors across developmental stages and cross\u2010types, supplemented by comparative genomic mapping. We found that the pistil's species identity, rather than compatibility status, was the primary driver of transcriptional variation, indicating a dominant genotype\u2010specific background effect. Expression of the\n                    <jats:italic>PELPIII\u2010120K\u2010TTSL\u2010TTSR<\/jats:italic>\n                    gene cluster and\n                    <jats:italic>HT\u2010A<\/jats:italic>\n                    correlated strongly with barrier strength, while hybrids displayed a partial breakdown of incompatibility linked to altered expression balance. These results demonstrate that reproductive isolation in\n                    <jats:styled-content style=\"fixed-case\">\n                      <jats:italic>Solanum chilense<\/jats:italic>\n                    <\/jats:styled-content>\n                    relies on a complex, genotype\u2010specific regulatory network rather than universal factors. This insight refines our understanding of plant reproductive evolution and identifies specific molecular targets to overcome hybridization bottlenecks for crop improvement.\n                  <\/jats:p>","DOI":"10.1111\/ppl.71125","type":"journal-article","created":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T02:09:12Z","timestamp":1790129352000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Characterization of\n                    <scp>GSI<\/scp>\n                    and\n                    <scp>UI<\/scp>\n                    in\n                    <i>Solanum chilense<\/i>\n                    and Its Hybrids With\n                    <i>S. lycopersicum<\/i>\n                    : Uncovering Genotype\u2010Specific Mechanisms and Candidate Genes"],"prefix":"10.1111","volume":"178","author":[{"ORCID":"https:\/\/orcid.org\/0009-0001-8151-6281","authenticated-orcid":false,"given":"Pauline","family":"Moreels","sequence":"first","affiliation":[{"name":"Groupe de Recherche en Physiologie v\u00e9g\u00e9tale, Earth and Life Institute\u2010Agronomy Universit\u00e9 Catholique de Louvain  Louvain\u2010la\u2010Neuve Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0291-942X","authenticated-orcid":false,"given":"Servane","family":"Bigot","sequence":"additional","affiliation":[{"name":"Groupe de Recherche en Physiologie v\u00e9g\u00e9tale, Earth and Life Institute\u2010Agronomy Universit\u00e9 Catholique de Louvain  Louvain\u2010la\u2010Neuve Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-4720-681X","authenticated-orcid":false,"given":"Corentin","family":"Defalque","sequence":"additional","affiliation":[{"name":"Groupe de Recherche en Physiologie v\u00e9g\u00e9tale, Earth and Life Institute\u2010Agronomy Universit\u00e9 Catholique de Louvain  Louvain\u2010la\u2010Neuve Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marie Eve","family":"Renard","sequence":"additional","affiliation":[{"name":"Groupe de Recherche en Physiologie v\u00e9g\u00e9tale, Earth and Life Institute\u2010Agronomy Universit\u00e9 Catholique de Louvain  Louvain\u2010la\u2010Neuve Belgium"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2310-7460","authenticated-orcid":false,"given":"Juan Pablo","family":"Martinez","sequence":"additional","affiliation":[{"name":"Instituto de Investigaciones Agropecuarias (INIA\u2010Rayentu\u00e9)  Rengo O'Higgins Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stanley","family":"Lutts","sequence":"additional","affiliation":[{"name":"Groupe de Recherche en Physiologie v\u00e9g\u00e9tale, Earth and Life 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