Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1098/rstb.2019.0544
Titel (primär) Evolution of strong reproductive isolation in plants: broad-scale patterns and lessons from a perennial model group
Autor Shang, H.; Hess, J.; Pickup, M.; Field, D.L.; Ingvarsson, P.K.; Liu, J.; Lexer, C.
Quelle Philosophical Transactions of the Royal Society B-Biological Sciences
Erscheinungsjahr 2020
Department BOOEK
Band/Volume 375
Seite von art. 20190544
Sprache englisch
Daten-/Softwarelinks https://doi.org/10.5061/dryad.h9w0vt4fw
Supplements https://royalsocietypublishing.org/action/downloadSupplement?doi=10.1098%2Frstb.2019.0544&file=rstb20190544supp1.pdf
Keywords speciation, hybridization, reproductive isolation, gene flow, topology discordance, recombination rate
Abstract Many recent studies have addressed the mechanisms operating during the early stages of speciation, but surprisingly few studies have tested theoretical predictions on the evolution of strong reproductive isolation (RI). To help address this gap, we first undertook a quantitative review of the hybrid zone literature for flowering plants in relation to reproductive barriers. Then, using Populus as an exemplary model group, we analysed genome-wide variation for phylogenetic tree topologies in both early- and late-stage speciation taxa to determine how these patterns may be related to the genomic architecture of RI. Our plant literature survey revealed variation in barrier complexity and an association between barrier number and introgressive gene flow. Focusing on Populus, our genome-wide analysis of tree topologies in speciating poplar taxa points to unusually complex genomic architectures of RI, consistent with earlier genome-wide association studies. These architectures appear to facilitate the ‘escape’ of introgressed genome segments from polygenic barriers even with strong RI, thus affecting their relationships with recombination rates. Placed within the context of the broader literature, our data illustrate how phylogenomic approaches hold great promise for addressing the evolution and temporary breakdown of RI during late stages of speciation.
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=23487
Shang, H., Hess, J., Pickup, M., Field, D.L., Ingvarsson, P.K., Liu, J., Lexer, C. (2020):
Evolution of strong reproductive isolation in plants: broad-scale patterns and lessons from a perennial model group
Philos. Trans. R. Soc. B-Biol. Sci. 375 , art. 20190544 10.1098/rstb.2019.0544