Results 61 to 70 of about 746 (152)

Extreme environments in a world of new extremes

open access: yesEcosphere, Volume 17, Issue 2, February 2026.
Abstract Extreme environments, whether defined by climate, soils, or disturbance, at landscape or micro‐scales, are prevalent across Earth's surface and have long served as crucibles for ecological and evolutionary insights. Many foundational theories were developed in deserts, cliffs, ultramafic soils, and other harsh systems.
Catherine M. Hulshof   +3 more
wiley   +1 more source

Temperature and the evolution of flower color: A review

open access: yesAmerican Journal of Botany, Volume 113, Issue 1, January 2026.
Abstract Flower colors brighten our natural world. How and why have they evolved? How might ongoing global warming alter their evolutionary trajectories? In this review, I examine the influence of ambient temperature on the evolution of flower color.
Elizabeth P. Lacey
wiley   +1 more source

Early eudicot reproductive structure: Fruit and flower morphology of Ranunculaecarpus Samyl. from the Early Cretaceous of eastern Siberia

open access: yesActa Palaeobotanica, 2018
Floral and fruit morphology of the early eudicot Ranunculaecarpus quinquecarpellatus Samyl. is described based on details from sectioning and microscopy of the permineralized type material from the Albian Buor-Kemyus Formation of the Zyryanka coal basin.
STEVEN R. MANCHESTER   +3 more
doaj   +1 more source

Dual Isotope Analysis Reveals Phylogenetic Patterns and Novel Insights Into Methoxy Group Synthesis of Structural Biomolecules in Leaf and Woody Plant Tissues

open access: yesPlant, Cell &Environment, Volume 48, Issue 12, Page 8483-8501, December 2025.
ABSTRACT Stable carbon and hydrogen isotopes of wood methoxy groups (δ2Hmeth, δ13Cmeth), mainly sourced by structural biomolecules like lignin and pectin, provide important insights into climatic, hydrological and physiological conditions. This study systematically investigated species‐specific δ2Hmeth and δ13Cmeth variations in leaves and woody twigs ...
Anna Wieland   +6 more
wiley   +1 more source

Data from: Phylogenetic relationships and character evolution analysis of Saxifragales using a supermatrix approach

open access: yes, 2013
Premise of the study: We sought novel evolutionary insights for the highly diverse Saxifragales by constructing a large phylogenetic tree encompassing 36.8% of the species-level biodiversity.
Mort, Mark E.   +7 more
core   +1 more source

Echeveria zoquitlanensis (Crassulaceae), a new microendemic species from Oaxaca, Mexico

open access: yesBotan‪ical Sciences
Background: Echeveria (Crassulaceae) is an American genus distributed from Mexico to South America. The genus has 132 species recorded in Mexico, where the state of Oaxaca with 56 species has the greatest richness of the genus.
Juvenal Aragón-Parada   +1 more
doaj   +1 more source

The Complete Mitochondrial Genome of Paeonia lactiflora Pall. (Saxifragales: Paeoniaceae): Evidence of Gene Transfer from Chloroplast to Mitochondrial Genome. [PDF]

open access: yesGenes (Basel)
Paeonia lactiflora (P. lactiflora), a perennial plant renowned for its medicinal roots, provides a unique case for studying the phylogenetic relationships of species based on organelle genomes, as well as the transference of DNA across organelle genomes.
Tang P, Ni Y, Li J, Lu Q, Liu C, Guo J.
europepmc   +3 more sources

Placing Nothophylica piloburmensis from Cretaceous amber into the angiosperm phylogeny

open access: yesTAXON, Volume 74, Issue 4, Page 933-937, August 2025.
Abstract Recently, we redescribed an amber inclusion from mid‐Cretaceous Kachin amber of Myanmar, previously assigned to the extant genus Phylica in Rhamnaceae (core eudicots), and placed it in a new fossil‐genus, Nothophylica. Based on our reconstructions, we identified new floral features and instead suggested affinities within magnoliids, especially
Simon Beurel   +4 more
wiley   +1 more source

Colección de Rosales, Salviniales, Santalales, Sapindales, Saxifragales, Schizaeales y Selaginellales del Museo Botánico CORD (FCEFyN-UNC-IMBIV-CONICET)

open access: yes, 2023
Esta colección está compuesta por los ejemplares botánicos colectados a campo en distintas campañas, secados, montados y conservados en el Museo Botánico de Córdoba, dependiente de la Facultad de Ciencias Exactas Físicas y Naturales de la Universidad ...
Gritti, Marcelo Alfredo
core   +1 more source

Comparative Genomics Insights Into the Evolutionary Disparities Between Nitroplast‐Evolved Ecotype UCYN‐A2 and Its Closest Relative UCYN‐A1

open access: yesEcology and Evolution, Volume 15, Issue 7, July 2025.
This paper conducted comparative genomic analyses among seven UCYN‐A strains in genome content, gene structure, and key metabolic protein genes. In general, our results demonstrated considerable disparities between UCYN‐A1 and UCYN‐A2, providing insights into the evolution of UCYN‐A and nitroplast.
Shiyun Han   +9 more
wiley   +1 more source

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