ALERT: This system is being upgraded on Tuesday December 12. It will not be available for use for several hours that day while the upgrade is in progress. Deposits to DukeSpace will be disabled on Monday December 11, so no new items are to be added to the repository while the upgrade is in progress. Everything should be back to normal by the end of day, December 12.
Now showing items 1-10 of 87
Natural hybridization between genera that diverged from each other approximately 60 million years ago.
(Am Nat, 2015-03)
A fern from the French Pyrenees-×Cystocarpium roskamianum-is a recently formed intergeneric hybrid between parental lineages that diverged from each other approximately 60 million years ago (mya; 95% highest posterior density: ...
Phytochrome diversity in green plants and the origin of canonical plant phytochromes.
(Nat Commun, 2015-07-28)
Phytochromes are red/far-red photoreceptors that play essential roles in diverse plant morphogenetic and physiological responses to light. Despite their functional significance, phytochrome diversity and evolution across ...
The origin and evolution of phototropins.
(Front Plant Sci, 2015)
Plant phototropism, the ability to bend toward or away from light, is predominantly controlled by blue-light photoreceptors, the phototropins. Although phototropins have been well-characterized in Arabidopsis thaliana, their ...
Is morphology really at odds with molecules in estimating fern phylogeny?
(Systematic Botany, 2009-07-01)
Using a morphological dataset of 136 vegetative and reproductive characters, we infer the tracheophyte phylogeny with an emphasis on early divergences of ferns (monilophytes). The dataset comprises morphological, anatomical, ...
Low-copy nuclear sequence data confirm complex patterns of farina evolution in notholaenid ferns (Pteridaceae).
(Molecular phylogenetics and evolution, 2019-09)
Notholaenids are an unusual group of ferns that have adapted to, and diversified within, the deserts of Mexico and the southwestern United States. With approximately 40 species, this group is noted for being desiccation-tolerant ...
Infraspecific diversification of the star cloak fern (Notholaena standleyi) in the deserts of the United States and Mexico.
(American journal of botany, 2020-04-07)
PREMISE:Not all ferns grow in moist and shaded habitats. One well-known example is Notholaena standleyi, a species that thrives in deserts of the southwestern United States and Mexico. This species exhibits several "chemotypes" ...
Baja: A New Monospecific Genus Segregated from Cheilanthes s. l. (Pteridaceae)
(Systematic Botany, 2019-09-06)
Using computer vision on herbarium specimen images to discriminate among closely related horsetails (Equisetum).
(Applications in plant sciences, 2020-06)
Premise:Equisetum is a distinctive vascular plant genus with 15 extant species worldwide. Species identification is complicated by morphological plasticity and frequent hybridization events, leading to a disproportionately ...
A step-by-step protocol for meiotic chromosome counts in flowering plants: A powerful and economical technique revisited.
(Applications in plant sciences, 2020-04-23)
Premise:Counting chromosomes is a fundamental botanical technique, yet it is often intimidating and increasingly sidestepped. Once mastered, the basic protocol can be applied to a broad range of taxa and research questions. ...