Results 41 to 50 of about 2,240 (189)
Specific duplication and dorsoventrally asymmetric expression patterns of Cycloidea-like genes in zygomorphic species of Ranunculaceae. [PDF]
, 2014 Floral bilateral symmetry (zygomorphy) has evolved several times independently in angiosperms from radially symmetrical (actinomorphic) ancestral states. Homologs of the Antirrhinum majus Cycloidea gene (Cyc) have been shown to control floral symmetry in
Cossard, G. +5 more
core +5 more sources
Aquilegia as a Model System for the Evolution and Ecology of Petals [PDF]
, 2012 The ranunculid genus Aquilegia holds extraordinary promise as a model system for investigating a wide range of questions relating to the evolution and ecology of petals.
Hodges, Scott A., Kramer, Elena M.
core +1 more source
First evidence of ranunculids in Early Cretaceous tropics
Scientific Reports, 2022 Early Cretaceous floras containing angiosperms were described from several geographic areas, nearly from the Arctic to the Antarctic, and are crucial to understand their evolution and radiation.
William Vieira Gobo +4 more
doaj +1 more source
Non-random Vessel Distribution in Woods: Patterns, Modes, Diversity, Correlations [PDF]
, 2009 Vessel grouping is a form of non-random distribution that becomes functionally valuable when the background consists of non-conductive imperforate tracheary elements (fiber-tracheids and libriform fibers); ungrouped vessels, randomly placed, often occur ...
Carlquist, Sherwin
core +2 more sources
Extrapolating demography with climate, proximity and phylogeny: approach with caution [PDF]
, 2016 Plant population responses are key to understanding the effects of threats such as climate change and invasions. However, we lack demographic data for most species, and the data we have are often geographically aggregated.
Buckley, Y.M. +3 more
core +4 more sources
The contribution of embryogeny to the systematics of Polycarpi cae and Helobiae
Acta Societatis Botanicorum Poloniae, 2014 The study of embryogenesis in 27 genera of Polycarpicae and Helobiae allows to determine the embryological characters of these two taxa and determine their phylogenetic bonds by comparison with other morphologic criteria.
J. Guignard, Ly Thi Ba
doaj +1 more source
The developmental basis of floral nectary diversity and evolution. [PDF]
New PhytolSummary Nectar is a central bridge between angiosperms and animal mutualists. It is produced by specialized structures termed nectaries, which can be found on different plant organs. Consumption of floral nectar by pollinators and the subsequent transfer of pollen contribute to the reproductive success of both angiosperms and their pollinators.
Liao IT, Gong Y, Kramer EM, Nikolov LA.
europepmc +2 more sources
BMC Plant Biology, 2022 Background The mitogenomes of vascular plants are one of the most structurally diverse molecules. In the present study we characterize mitogenomes of a rare and endangered species Pulsatilla patens.
Kamil Szandar +5 more
doaj +1 more source
Plants, 2023 In this paper, we present the morphology, taxonomy, anatomy, and palynology of Papaver somniferum. A detailed morphological description and illustrations of the species are provided, along with information about the identification, distribution ...
Chatchai Ngernsaengsaruay +7 more
doaj +1 more source
Consistent role of Quaternary climate change in shaping current plant functional diversity patterns across European plant orders [PDF]
, 2017 Current and historical environmental conditions are known to determine jointly contemporary species distributions and richness patterns. However, whether historical dynamics in species distributions and richness translate to functional diversity patterns
Ordonez, Alejandro +1 more
core +1 more source