biostudies-literatureDe Luca DMinistry of Education, Universities and ResearchUniversity of Pisa2118https://www.ebi.ac.uk/biostudies/studies/S-EPMC9414604biostudies-literatureUnknown11(16)The genus <i>Mcneillia</i> has been recently segregated from <i>Minuartia</i> L. based on molecular results, also supported by morphology. However, to date, a comprehensive study on the phylogenetic relationships within this genus is lacking. In this paper, we provide a multigene phylogeny of all the species and subspecies of <i>Mcneillia</i> employing two nuclear and six chloroplast markers. We documented extensive gene flow between taxa, sometimes separated at specific rank. In addition, <i>Mcneillia</i> as currently circumscribed, is not monophyletic. In fact, <i>Mcneillia graminifolia</i> subsp. <i>brachypetala</i>, strictly endemic to Greece, truly belongs to <i>Minuartiella</i>, a genus otherwise limited to South-West Asia. Moreover, even after removal of this taxon, our results do nPlants (Basel, Switzerland)Relationships within <i>Mcneillia</i> Indicate a Complex Evolutionary History and Reveal a New Species of <i>Minuartiella</i> (Caryophyllaceae, Alsinoideae).PMC94146042017JW4HZKDe Luca DConti FDel Guacchio EIamonico DCaputo PfalseRelationships within <i>Mcneillia</i> Indicate a Complex Evolutionary History and Reveal a New Species of <i>Minuartiella</i> (Caryophyllaceae, Alsinoideae).The genus <i>Mcneillia</i> has been recently segregated from <i>Minuartia</i> L. based on molecular results, also supported by morphology. However, to date, a comprehensive study on the phylogenetic relationships within this genus is lacking. In this paper, we provide a multigene phylogeny of all the species and subspecies of <i>Mcneillia</i> employing two nuclear and six chloroplast markers. We documented extensive gene flow between taxa, sometimes separated at specific rank. In addition, <i>Mcneillia</i> as currently circumscribed, is not monophyletic. In fact, <i>Mcneillia graminifolia</i> subsp. <i>brachypetala</i>, strictly endemic to Greece, truly belongs to <i>Minuartiella</i>, a genus otherwise limited to South-West Asia. Moreover, even after removal of this taxon, our results do n2022-01-01T00:00:00Z2022 Aug2026-04-08T11:46:32.99Z2025-04-19T22:49:03.288ZS-EPMC94146043601542110.3390/plants11162118