#Gymnosperm

J of Systematics and EvolutionJSE@mstdn.science
2025-09-26

Family #tree level: Expert!

Wu et al. use #phylogenomics to shed light on the complex #evolutionary history of the #gymnosperm genus Cupressus, revealing East Asian–Tethyan disjunction.

doi.org/10.1111/jse.13151

@WileyEcolEvol

@wileyplantsci
#plant #systematics #JSE #cypress #botany

This annotated world map, featuring clade diagrams and in situ morphological images, illustrates evolutionary history reconstructions of Cupressus L., based on 1991 single-copy nuclear genes and plastid genomes.
Journal of Plant Ecologyjpecol
2025-04-11

‘High vein density-faster growth and higher productivity’ models and do not include enough samples, especially cultivated in . Xi Peng et al. took as the sample to test the hypotheses.
doi.org/10.1093/jpe/rtac030

Relationships of LP (a, b), LA (c, d, e), LT (f, g, h), and LDMC (i, j) with VLA and VLM within tree species of Cunninghamia lanceolata; standard major axes were fitted to the data. See text and Table 1 for explanation of units. See Supplementary Table S2 for a detailed summary of statistic parameters.
J of Systematics and EvolutionJSE@mstdn.science
2025-01-24

Relationship status: It's complicated...

Wu et al. use #phylogenomics to shed light on the complex #evolutionary history of the #gymnosperm genus Cupressus, which shows East Asian–Tethyan disjunction.

doi.org/10.1111/jse.13151
@WileyEcolEvol
#PlantSci #evolution #JSE #cypress #botany

This annotated world map, featuring clade diagrams and in situ morphological images, illustrates evolutionary history reconstructions of Cupressus L., based on 1991 single-copy nuclear genes and plastid genomes.
J of Systematics and EvolutionJSE@mstdn.science
2024-11-12

Assessing #sampling bias caused by nonrandom specimen collecting is crucial in #systematics, #biogeography, and #conservation. Here, Xie et al. used 100+ years' worth of #Gymnosperm collection data to assess collection bias.
doi.org/10.1111/jse.13122
@WileyEcolEvol
#evolution #botany

Factors used to assess collection bias: (A) time lapse in collecting history; (B) frequency of specimen collecting; (C) phylogenetic bias; and (D) collecting hotspots and coldspots.
2024-10-11

Happy #FossilFriday! #Fossil #wood is a crucial proxy for understanding terrestrial vegetation composition and #development in the Earth's history. Find out where the #Mesozoic common #gymnosperm Xenoxylon Gothan fits in this story!🔓⬇️
doi.org/10.1111/jse.13132
@WileyEcolEvol
#JSE #evolution

Xylological characters of radial tracheid pits and cross-field pits in species of Xenoxylon. Red arrows show the window-like cross-field pitting. Scale bar = 100 μm.
J of Systematics and EvolutionJSE@mstdn.science
2024-09-05

Assessing #sampling biases caused by nonrandom specimen collecting is crucial in #systematics, #biogeography, and #conservation. This study uses more than 100 years' worth of #Gymnosperm collection data to assess collection bias.
doi.org/10.1111/jse.13122
@WileyEcolEvol
#evolution #botany

Factors used to assess collection bias: (A) time lapse in collecting history; (B) frequency of specimen collecting; (C) phylogenetic bias; and (D) collecting hotspots and coldspots.
katch wreckkatchwreck
2024-07-31

"These data give us a new insight into the relationships between wood nanostructure and the cell wall composition, which differs across the lineages of and plants. By identifying the potential selective pressures for the evolution of macrofibril morphology, our work provides the basis for selection or engineering for desirable wood properties and may open up routes for improved in plantation forests."

nph.onlinelibrary.wiley.com/do

2022-11-26

What Makes #Ginkgobiloba Live for Thousand Years | Gingko #trees lives for thousands years by evolving compensatory mechanisms to maintain a balance between #growth and #ageing #Ginkgo biloba, a #deciduous #gymnosperm tree native...

scientificeuropean.co.uk/scien

Erin Brown-Johneebeejay@scicomm.xyz
2022-11-24

Help! I was going to design a nice poster for the #SFU science #knitting group and I've fallen down a rabbit hole of public domain #angiosperm and #gymnosperm photos... and I want to knit them all. flickr.com/photos/146824358@N0

cross section: Pinus stem

magnification: 40x

Triarch quadruple stainCross section: Quercus stem wood

Magnification: 100x

iron-alum hematoxylin and safranin stain
2022-11-21

got myself a new friend for the office! Quite appropriate for a #gymnosperm researcher

A potted Norfolk pine sitting in front of a window
Jeff Dean (the Biochemist)jeffdean@qoto.org
2022-11-15

Some esoteric tags for former research interests, many of which won't return search hits from the fediverse for a long time, if ever.
#pinus #sirex #amylostereum #laccase #DAHPSynthase #phenylpropanoids #droughtstress #conifer #gymnosperm #eix #xylanase #Trichoderma #Phanerochaete #SomaticEmbryogenesis #genomeediting #crispr

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