Results 41 to 50 of about 8,437 (128)

Convergent Patterns of Karyotype Evolution Underlying Karyotype Uniformity in Conifers

open access: yesAdvanced Science, Volume 12, Issue 7, February 17, 2025.
The remarkable karyotype uniformity observed in gymnosperms has long posed an evolutionary puzzle. This study proposes a model of karyotype evolution in gymnosperms, highlighting the rarity of both polyploidy and dysploidy as key factors underlying this uniformity.
Ren‐Gang Zhang   +10 more
wiley   +1 more source

Inbreeding Depression Manifested in Progeny From Fragmented Populations of the Wind‐Pollinated Dioecious Conifer Afrocarpus gracilior (Pilg.) C. N. Page

open access: yesEcology and Evolution, Volume 15, Issue 2, February 2025.
Forest fragmentation in Afrocarpus gracilior reduced genetic diversity and caused significant inbreeding depression, especially in smaller populations. Progeny from these populations showed lower genetic diversity, reduced germination rates, slower growth, and diminished survival. Seeds should be sourced from larger, genetically diverse populations for
Nigussu Begashaw Abate   +3 more
wiley   +1 more source

Commodity risk assessment of debarked conifer wood chips fumigated with sulfuryl fluoride from the US

open access: yesEFSA Journal, Volume 23, Issue 1, January 2025.
Abstract The European Commission requested the EFSA Panel on Plant Health to deliver a risk assessment on the likelihood of pest freedom from regulated EU quarantine pests, with emphasis on Bursaphelenchus xylophilus and its vectors Monochamus spp. of debarked conifer wood chips fumigated with sulfuryl fluoride as proposed by the United States (US) and
EFSA Panel on Plant Health (PLH)   +32 more
wiley   +1 more source

Three new C-14 oxygenated taxanes from the wood of Taxus yunnanensis

open access: yes, 2002
Three new C-14 oxygenated taxane-type diterpenes, hongdoushans A 12C (1 123), were isolated from the wood of Taxus yunnanensis together with four known diterpenes and two lignans. The absolute stereochemistry of the 2-methylbutyryloxy group attached at C-
Tezuka, Yasuhiro   +5 more
core   +1 more source

DataSheet1_Quality evaluation of compounds in leaves of six Taxus species based on UPLC-MS/MS and chemometrics.pdf

open access: yes, 2023
Introduction:Taxus species are used as medicinal plants all over the world. The leaves of Taxus species are sustainable medicinal resources that are rich in taxoids and flavonoids.
Lina Huang (338023)   +12 more
core   +1 more source

Plant‐Based Biosynthesis of Metal and Metal Oxide Nanoparticles: An Update on Antimicrobial and Anticancer Activity

open access: yesChemBioEng Reviews, Volume 11, Issue 6, December 2024.
When it comes to finding novel ways to battle newly developing pathogenic strains and illnesses, nanoparticles are the first line of defense. Plant‐based nanoparticles are showing more significance over chemically or physically synthesized nanoparticles. Several plant species and their constituent parts have found several applications in medicine. They
Shruti Nandkishor Tanwar   +4 more
wiley   +1 more source

Integrative multi-omics reveals shading effects on polysaccharide and secondary metabolism in Taxus media × T. yunnanensis

open access: yesEnvironmental and Experimental Botany
Light is a critical environmental factor that regulates plant development and secondary metabolism, but its molecular influence on paclitaxel biosynthesis in Taxus remains unclear.
Jiangtao Fan   +12 more
doaj   +1 more source

Climate change vulnerability and conservation strategies for tertiary relict tree species: Insights from landscape genomics of Taxus cuspidata

open access: yesEvolutionary Applications, Volume 17, Issue 9, September 2024.
Abstract The unprecedented habitat fragmentation or loss has threatened the existence of many species. Therefore, it is essential to understand whether and how these species can pace with the environmental changes. Recent advantages in landscape genomics enabled us to identify molecular signatures of adaptation and predict how populations will respond ...
Yanjun Luo   +5 more
wiley   +1 more source

Integrated physiological and multi-omics analyses revealed the response mechanisms of Taxus yunnanensis to varying irrigation amounts

open access: yesIndustrial Crops and Products
Taxus yunnanensis has attracted considerable attention due to its richness in bioactive metabolites, such as paclitaxel and flavonoids, and artificial cultivation has become its primary source. However, the mechanisms by which irrigation amount regulates
Xiong Huang   +11 more
doaj   +1 more source

Local adaptation and demographic history of vulnerable conifer Cephalotaxus oliveri in southern China

open access: yesJournal of Systematics and Evolution, Volume 62, Issue 3, Page 457-474, May 2024.
In this study, we generated transcriptome data and identified 17 728 high‐quality single‐nucleotide polymorphisms from 18 Cephalotaxus oliveri populations. We found significant negative correlations between expression diversity and nucleotide diversity within and among populations. The analyses of population structure showed that C.
Han‐Jing Liu   +4 more
wiley   +1 more source

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