Results 11 to 20 of about 5,304 (178)

Genomics is modifying our concepts of evolution in homosporous and heterosporous vascular plants. [PDF]

open access: yesAm J Bot
Abstract Across the tree of life, and particularly within land plants, there is a wide diversity and disparity of genome structure. The most well‐studied are angiosperms, comprising mostly small and dynamic genomes, with a history of ancient whole genome duplications.
Kinosian SP.
europepmc   +2 more sources

Morphology of “Selaginella” [PDF]

open access: yesNature, 1877
IN consequence of my not having expressed myself sufficiently fully, Prof. Thiselton Dyer somewhat misapprehends my remarks respecting Selaginella and Carex, to which he is good enough to reply in NATURE (vol. xv. p. 489); and I shall be glad of an opportunity of explaining the nature of the comparison that I drew between the reproductive organs in ...
openaire   +3 more sources

The cytotypes variability of the complex Selaginella sanguinolenta s. l.

open access: yesTurczaninowia, 2020
The article presents the results of measuring the DNA content by flow cytometry of S. sanguinolenta and S. borealis species in 50 populations from natural habitats of Russia and Mongolia. Two probable cytotypes for S.
Михаил Викторович Скапцов   +11 more
doaj   +1 more source

Antifungal Activity of Selaginella plana (Desv. ex Poir.) Hieron Extract Against Candida albicans In Vitro

open access: yesFolia Medica Indonesiana, 2023
Highlights: 1. A study on the medical benefits of Selaginella plana has significant academic value due to its extensive traditional usage among the Moluccan people as a medicinal remedy, especially for its antifungal properties. 2. The findings of this
Juen Carla Warella   +3 more
doaj   +1 more source

Taxonomic innovations in South American Selaginella (Selaginellaceae, Lycopodiophyta): description of five new species and an additional range extension [PDF]

open access: yesPhytoKeys, 2020
Five Selaginella species (i.e, S. gioiae, S. papillosa, S. pubimarginata, S. rostrata, and S. xanthoneura) from Neotropical rainforests of South America are described and illustrated as new, while S.
Iván A. Valdespino
doaj   +3 more sources

Mutation Pressure and Gene-Specific Selection Shape Codon Usage Bias in the Chloroplast Genomes of <i>Isoetes</i>, an Ancient Aquatic Vascular Plant Lineage. [PDF]

open access: yesEcol Evol
This study analyzed the chloroplast genomes of 60 Isoetes species to characterize codon usage bias patterns and understand the evolutionary forces shaping this ancient lineage of aquatic vascular plants. The findings reveal a highly conserved chloroplast genome structure with relatively weak codon usage bias, primarily driven by mutation pressure ...
Li B   +8 more
europepmc   +2 more sources

Molecular cloning of RBCS genes in Selaginella and the evolution of the rbcS gene family [PDF]

open access: yesArchives of Biological Sciences, 2015
Rubisco small subunits (RBCS) are encoded by a nuclear rbcS multigene family in higher plants and green algae. However, owing to the lack of rbcS sequences in lycophytes, the characteristics of rbcS genes in lycophytes is unclear.
Wang Bo, Yingjuan Su, Wang Ting
doaj   +1 more source

Selaginella was hyperdiverse already in the Cretaceous [PDF]

open access: yesNew Phytologist, 2020
Peer ...
Alexander R. Schmidt   +13 more
openaire   +5 more sources

The enigma of sex allocation in Selaginella [PDF]

open access: yesAnnals of Botany, 2017
The division of resource investment between male and female functions is poorly known for land plants other than angiosperms. The ancient lycophyte genus Selaginella is similar in some ways to angiosperms (in heterospory and in having sex allocation occur in the sporophyte generation, for example) but lacks the post-fertilization maternal investments ...
Kurt B, Petersen, Martin, Burd
openaire   +2 more sources

Spore morphology of Selaginella borealis, S. sanguinolenta and S. helvetica (Selaginellaceae, Lycopodiophyta)

open access: yesTurczaninowia, 2019
For the first time we have conducted a study of three species of the genus Selaginella P. Beauv. from Russia: S. sanguinolenta (L.) Spring, S. helvetica (L.) Link and S. borealis (Kaulf.) Rupr. using the method of scanning electron microscopy (SEM). In a
Алексей Владимирович Ваганов   +8 more
doaj   +1 more source

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