Results 41 to 50 of about 977 (152)

Spermatophyta Molecular Clock: Time Drift and Recent Acceleration. [PDF]

open access: yesPlant Environ Interact
Exponential increase in the base substitution rate in recent geologic time. ABSTRACT Angiospermae radiation is widely recognized as a mid‐Cretaceous event, but the adaptive radiation of Asarum and Viola as spring ephemerals also occurred during the Quaternary. To better understand the evolution of Angiospermae through geological time, a robust and well‐
Osozawa S.
europepmc   +2 more sources

Floral Morphogenesis in Euptelea (Eupteleaceae, Ranunculales) [PDF]

open access: yesAnnals of Botany, 2007
Based on molecular phylogenetic studies, the unigeneric family Eupteleaceae has a prominent phylogenetic position at or near the base of Ranunculales, which, in turn, appear at the base of eudicots. The aim of the present paper is to reveal developmental features of the flowers and to put the genus in a morphological context with other basal eudicots ...
Ren, Yi   +3 more
openaire   +4 more sources

Over 100 Million Years of Enzyme Evolution Underpinning the Production of Morphine in the Papaveraceae Family of Flowering Plants

open access: yesPlant Communications, 2020
Phylogenomic analysis of whole genome sequences of five benzylisoquinoline alkaloid (BIA)-producing species from the Ranunculales and Proteales orders of flowering plants revealed the sequence and timing of evolutionary events leading to the ...
Yi Li   +3 more
doaj   +1 more source

A high-quality Buxus austro-yunnanensis (Buxales) genome provides new insights into karyotype evolution in early eudicots

open access: yesBMC Biology, 2022
Background Eudicots are the most diverse group of flowering plants that compromise five well-defined lineages: core eudicots, Ranunculales, Proteales, Trochodendrales, and Buxales.
Zhenyue Wang   +11 more
doaj   +1 more source

Protective effects of Berberis crataegina DC. (Ranunculales: Berberidaceae) extract on Bleomycin-induced toxicity in fruit flies (Diptera: Drosophilidae)

open access: diamondRevista de la Sociedad Entomológica Argentina, 2018
Los agentes antineoplásicos, debido a sus efectos citotóxicos, aumentan la cantidad de radicales libres en las células causando su muerte. Los objetivos de este estudio fueron evaluar los posibles efectos tóxicos de la Bleomicina (BLM) en el número de ...
Tu\u011Fba ATICI   +2 more
doaj   +2 more sources

A Global Analysis of Alternative Splicing of Dichocarpum Medicinal Plants, Ranunculales. [PDF]

open access: yesCurr Genomics, 2022
Background: The multiple isoforms are often generated from a single gene via alternative splicing (AS) in plants, and the functional diversity of plant genome is significantly increased. Despite well studied gene functions, the specific functions of isoforms are little known, therefore the accurate prediction of isoform functions is exceedingly wanted.
Hao DC, Chen H, Xiao PG, Jiang T.
europepmc   +5 more sources

Paleopolyploidies and Genomic Fractionation in Major Eudicot Clades

open access: yesFrontiers in Plant Science, 2022
Eudicots account for ~75% of living angiosperms, containing important food and energy crops. Recently, high-quality genome sequences of several eudicots including Aquilegia coerulea and Nelumbo nucifera have become available, providing an opportunity to ...
Jia Teng   +10 more
doaj   +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

The developmental basis of floral nectary diversity and evolution. [PDF]

open access: yesNew Phytol
Summary 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

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