Evidence for both phylogenetic conservatism and lability in the evolution of secondary chemistry in a tropical angiosperm radiation
Evidence for both phylogenetic conservatism and lability in the evolution of secondary chemistry in a tropical angiosperm radiation
Summary Over evolutionary timescales, shifts in plant secondary chemistry may be associated with patterns of diversification in associated arthropods. Although foundational hypotheses of plant-insect codiversification and plant defense theory posit closely related plants should have similar chemical profiles, numerous studies have documented variation in the degree of phylogenetic signal, suggesting phytochemical evolution is more nuanced than initially assumed. We utilize proton nuclear magnetic resonance (1H NMR) data, chemical classification, and genotyping-by-sequencing to resolve evolutionary relationships and characterize the evolution of secondary chemistry in the Neotropical plant clade Radula (Piper; Piperaceae). Sequencing data substantially improved phylogenetic resolution relative to past studies, and spectroscopic characterization revealed the presence of 35 metabolite classes. Broad metabolite classes displayed strong phylogenetic signal, whereas the crude 1H NMR spectra featured evolutionary lability in chemical resonances. Evolutionary correlations were detected in two pairs of compound classes (flavonoids with chalcones; p-alkenyl phenols with kavalactones), where the gain or loss of a class was dependent on the other’s state. Overall, the evolution of secondary chemistry in Radula is characterized by strong phylogenetic signal of broad compound classes and concomitant evolutionary lability of specialized chemical motifs, consistent with both classic evolutionary hypotheses and recent examinations of phytochemical evolution in young lineages.
Parchman Thomas L.、Uckele Kathryn A.、Tepe Eric J.、Richards Lora A.、Dyer Lee A.、Ochsenrider Kaitlin M.、Kato Massuo J.、Yamaguchi Lydia F.、Smilanich Angela M.、Dodson Craig D.、Jeffrey Christopher S.、Philbin Casey S.、Jahner Joshua P.、Forister Matthew L.
Program in Ecology, Evolution, and Conservation Biology, University of Nevada||Department of Biology, University of NevadaProgram in Ecology, Evolution, and Conservation Biology, University of Nevada||Department of Biology, University of Nevada||Hitchcock Center for Chemical Ecology, University of NevadaDepartment of Biological Sciences, University of CincinnatiProgram in Ecology, Evolution, and Conservation Biology, University of Nevada||Department of Biology, University of Nevada||Hitchcock Center for Chemical Ecology, University of NevadaProgram in Ecology, Evolution, and Conservation Biology, University of Nevada||Department of Biology, University of Nevada||Hitchcock Center for Chemical Ecology, University of Nevada||Secci¨?n Invertebrados, Museo Ecuatoriano de Ciencias NaturalesDepartment of Chemistry, University of NevadaDepartment of Fundamental Chemistry, Institute of Chemistry, University of S?o PauloDepartment of Fundamental Chemistry, Institute of Chemistry, University of S?o PauloProgram in Ecology, Evolution, and Conservation Biology, University of Nevada||Department of Biology, University of NevadaDepartment of Chemistry, University of NevadaProgram in Ecology, Evolution, and Conservation Biology, University of Nevada||Hitchcock Center for Chemical Ecology, University of Nevada||Department of Chemistry, University of NevadaHitchcock Center for Chemical Ecology, University of NevadaProgram in Ecology, Evolution, and Conservation Biology, University of Nevada||Department of Biology, University of NevadaProgram in Ecology, Evolution, and Conservation Biology, University of Nevada||Department of Biology, University of Nevada||Hitchcock Center for Chemical Ecology, University of Nevada
植物学
genotyping-by-sequencingnuclear magnetic resonance (1H NMR)phylogenetic comparative analysesphylogenetic signalphytochemistryPiperRadula
Parchman Thomas L.,Uckele Kathryn A.,Tepe Eric J.,Richards Lora A.,Dyer Lee A.,Ochsenrider Kaitlin M.,Kato Massuo J.,Yamaguchi Lydia F.,Smilanich Angela M.,Dodson Craig D.,Jeffrey Christopher S.,Philbin Casey S.,Jahner Joshua P.,Forister Matthew L..Evidence for both phylogenetic conservatism and lability in the evolution of secondary chemistry in a tropical angiosperm radiation[EB/OL].(2025-03-28)[2025-08-02].https://www.biorxiv.org/content/10.1101/2020.11.30.404855.点此复制
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