Anti-Herbivore Activity of Oregonin, a Diarylheptanoid Found in Leaves and Bark of Red Alder (Alnus rubra)

Lea, Carmen S.; Bradbury, Stephen G.; Constabel, C. Peter

doi:10.1007/s10886-021-01244-3

Cited by 7 publications

(2 citation statements)

References 48 publications

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“…For instance, defensive resins are commonly produced in leaves, bark and seed cones of many gymnosperm taxa and are thought to inhibit fungal decomposition of their own litter [29]. Specific defensive compounds have also been reported from both foliage and bark in some angiosperm taxa including Alnus (alder) [30] and Populus (poplar) [31], but these defenses may be too transient to strongly affect litter decomposition. Resource-conservative plant life strategies favoring high plant tissue density, which are linked to increased organ mechanical defence and lifespan, appear coordinated at the global scale between leaves and roots [32], possibly owing to both whole-plant ecophysiological and allometric constraints and phenotypic integration [33].…”

mentioning

confidence: 99%

Coevolutionary legacies for plant decomposition

Cornelissen

Cornwell

Freschet

et al. 2023

Trends in Ecology & Evolution

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confidence: 99%

Coevolutionary legacies for plant decomposition

Cornelissen

Cornwell

Freschet

et al. 2023

Trends in Ecology & Evolution

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“…Furthermore, pathway enrichment analysis highlighted the importance of three specific pathways: the stilbenoid, diarylheptanoid, and gingerol biosynthesis pathway (ko00945), along with Purine metabolism (ko00230). Stilbenoids have been recognized for their role in conferring resistance to rice blast disease, whereas diarylheptanoids are implicated in plant defense against herbivory 51 . These findings underscore the critical function of gene duplicates from the MRCA of Oryza sativa in defense mechanisms, which could be instrumental in bolstering the resilience of rice populations and their adaptive capacity to environmental challenges.…”

Section: Large-scaled Gene Duplicates Retained From the Mrca Of Oryza...mentioning

confidence: 99%

The origin and evolution of cultivated rice and genomic signatures of heterosis for yield traits in super-hybrid rice

Liu,

Yin,

et al. 2024

Preprint

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Unraveling evolutionary history and genomic basis of heterosis is fundamental for advancing rice productivity. We developed a genome-scale phylogeny of Oryzeae by coalescing 39,984 gene trees. Our analysis supports parallel, independent origins and nearly synchronous evolutionary trajectories leading to the subsequent domestication of indica and japonica, evidenced by molecular dating and synonymous substitution rates for syntenic and domestication-associated genes. Our survey of 1,383 gene duplications in ancestor of O. sativa uncovers their roles in vital biological processes, highlighting the significance in environmental adaptability. Additionally, we confirm the lack of hybridization event among subspecies ancestors through gene tree topology and D-statistical analyses. We generated 71.67 GB whole-genome sequencing data for five super-hybrid rice varieties and their progenitors, revealing differential positive selection and genetic exchanges between subspecies, essential for heterosis formation. Crucially, our study underscores the role of non-additive gene expression in heterosis, particularly in genes associated with DNA repair and recombination, which may confer resistance traits. Furthermore, eQTL and de novo mutation analyses identify key developmental and stress response genes, offering targets for enhancing heterosis in rice. Overall, our research reveals crucial insights into the genetics of rice domestication and heterosis, offering a genomic resource to improve rice's agricultural productivity.

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