Results 111 to 120 of about 30,995 (261)
Phylogenetic systematics of Juncaceae
American Journal of Botany, EarlyView.Abstract Premise Juncaceae has needed taxonomic revision for some time. Specifically, the genus Juncus s.l. is known to be paraphyletic because five small southern‐hemisphere genera have been shown repeatedly to be nested within it. In 2022, a new classification was proposed, based on phylogenies built from one nuclear and three plastid regions ...
Reed J. Kenny +2 more
wiley +1 more source
Acta Agronómica, 2007 For description three accesions of L. alba from Llanos Orientales and Valle (Colombia) and Costa Rica (Central America) were used. The inflorescences are simples and racemoses. The flowers are small, sessiles, lilac color, disposed trought of the rachis,
Sánchez Manuel Salvador +2 more
doaj
American Journal of Botany, EarlyView.Abstract Premise Seed longevity is critical for successful genebanking, but it is hard to detect or predict. We examined survival of genebanked seeds from species native to the United States to estimate longevity. We tested whether RNA integrity (RIN) can be used to detect aging and predict mortality. Methods Dry seeds from >100 species were stored for
Christina Walters +7 more
wiley +1 more source
Origin of subgenomes in the circumboreal, allopolyploid, carnivorous plant Drosera anglica
American Journal of Botany, EarlyView.Abstract Premise The parentage of the widespread allopolyploid Drosera anglica, a member of the carnivorous sundew genus, remains uncertain despite over 100 years of morphological, cytological, and, more recently, molecular study. Methods Using transcriptomic and genomic data from 12 species of Drosera sect. Drosera, including four D.
Rebekah A. Mohn, Ya Yang
wiley +1 more source
Soil, competition, and niche shifts shape the floral mosaic of an annual plant diversity hotspot
American Journal of Botany, EarlyView.Abstract Premise Plant species with affinity for harsh substrates often have well‐defined edaphic (soil) niches and are ideal for exploring questions of community assembly. Vertic clay soils are chemically and physically challenging to plant establishment and productivity, and annual plant communities associated with these soils of the San Joaquin ...
Emma R. Fryer +5 more
wiley +1 more source
American Journal of Botany, EarlyView.Abstract Premise The defining life history strategy of spring ephemeral wildflowers is their avoidance of shading by trees during the brief, high‐light period before canopy leaf out. Studies suggest that spring ephemerals will experience increased light competition because canopy leaf out is more sensitive to warming than is the phenology of spring ...
Melina Schopler +6 more
wiley +1 more source
Characterizing the causes and consequences of calcium oxalate crystal presence in Vitis riparia
American Journal of Botany, EarlyView.Abstract Premise Calcium oxalate biomineralization in plants is phylogenetically widespread and morphologically diverse, but the function of these inorganic crystals is an area of active debate. The variety of environmental conditions that produce the crystals, as well as the inconsistent evidence that they provide antiherbivore defense across plant ...
Carolyn D. K. Graham +3 more
wiley +1 more source
American Journal of Botany, EarlyView.Abstract Premise Insect herbivory is a major biotic factor shaping plant populations and driving the evolution of defensive traits. Polyploidy (whole‐genome duplication) often induces substantial phenotypic and genotypic changes that may affect species interactions, including herbivory.
Antonio J. Manzaneda +4 more
wiley +1 more source
Floral Biology, Breeding System and Conservation Implications for the Azorean Endemic <i>Azorina vidalii</i> (Campanulaceae). [PDF]
Plants (Basel)Correia Rego RM +6 more
europepmc +1 more source