Homoplastic versus xenoplastic evolution: exploring the emergence of key intrinsic and extrinsic traits in the montane genus Soldanella (Primulaceae).

Autor: Rurik I; Department of Zoology, Comenius University Bratislava, Ilkovičova 6, 842 15, Bratislava, Slovak Republic., Melichárková A; Institute of Botany, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Dúbravská cesta 9, 845 23, Bratislava, Slovak Republic., Gbúrová Štubová E; Institute of Botany, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Dúbravská cesta 9, 845 23, Bratislava, Slovak Republic.; Slovak National Museum, Natural History Museum, Vajanského nábrežie 2, 810 06, Bratislava, Slovak Republic., Kučera J; Institute of Botany, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Dúbravská cesta 9, 845 23, Bratislava, Slovak Republic., Kochjarová J; Department of Phytology, Faculty of Forestry, Technical University Zvolen, Masarykova 24, 960 53, Zvolen, Slovak Republic., Paun O; Department of Botany and Biodiversity Research, University of Vienna, Rennweg 14, 1030, Vienna, Austria., Vďačný P; Department of Zoology, Comenius University Bratislava, Ilkovičova 6, 842 15, Bratislava, Slovak Republic., Slovák M; Institute of Botany, Plant Science and Biodiversity Centre, Slovak Academy of Sciences, Dúbravská cesta 9, 845 23, Bratislava, Slovak Republic.; Department of Botany, Charles University, Benátská 2, 128 01, Prague, Czech Republic.
Jazyk: angličtina
Zdroj: The Plant journal : for cell and molecular biology [Plant J] 2024 May; Vol. 118 (3), pp. 753-765. Date of Electronic Publication: 2024 Jan 13.
DOI: 10.1111/tpj.16630
Abstrakt: Specific ecological conditions in the high mountain environment exert a selective pressure that often leads to convergent trait evolution. Reticulations induced by incomplete lineage sorting and introgression can lead to discordant trait patterns among gene and species trees (hemiplasy/xenoplasy), providing a false illusion that the traits under study are homoplastic. Using phylogenetic species networks, we explored the effect of gene exchange on trait evolution in Soldanella, a genus profoundly influenced by historical introgression. At least three features evolved independently multiple times: the single-flowered dwarf phenotype, dysploid cytotype, and ecological generalism. The present analyses also indicated that the recurring occurrence of stoloniferous growth might have been prompted by an introgression event between an ancestral lineage and a still extant species, although its emergence via convergent evolution cannot be completely ruled out. Phylogenetic regression suggested that the independent evolution of larger genomes in snowbells is most likely a result of the interplay between hybridization events of dysploid and euploid taxa and hostile environments at the range margins of the genus. The emergence of key intrinsic and extrinsic traits in snowbells has been significantly impacted not only by convergent evolution but also by historical and recent introgression events.
(© 2024 The Authors. The Plant Journal published by Society for Experimental Biology and John Wiley & Sons Ltd.)
Databáze: MEDLINE
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