Results 21 to 30 of about 8,585 (205)
, 2021 Gymnosperms represent a broad range of seed-bearing plants that differ from flowering plants in not having seeds enclosed within carpels. Gymnosperms are probably monophyletic, having arisen among ‘progymnosperm’ stock in the Devonian. Key adaptations involving retention of the megagametophyte within a protective coating to form a seed on the parent ...
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Біологічні студії, 2013 The review contains the analysis of the latest literature sourses reproductive processes in gymnosperms, namely gametophytes development, рollination, fertilization.
A. Odintsova, A. Rugusova
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BMC Evolutionary Biology, 2020 Background Gymnosperms represent five of the six lineages of seed plants. However, most sequenced plant mitochondrial genomes (mitogenomes) have been generated for angiosperms, whereas mitogenomic sequences have been generated for only six gymnosperms ...
Sheng-Long Kan +4 more
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Mobilisation of distributional data for vascular plants of Murmansk Region, Russia: Digital representation of the Flora of Murmansk Region [PDF]
Biodiversity Data Journal, 2020 The present-day demand for digital availability of distributional data in biodiversity studies requires a special effort in assembling and editing the data otherwise scattered in paper literature and herbarium collections, which can be poorly accessible ...
Mikhail Kozhin +2 more
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Polyploidy in Gymnosperms [PDF]
Evolution, 1959 The gymnosperms constitute a primitive group of seed plants which have a considerable evolutionary interest. A substantial amount of literature on the morphology of the group exists, but very little has been written about the various cytogenetic factors responsible for evolution within the group.
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G3: Genes, Genomes, Genetics, 2020 Understanding the consequences of local adaptation at the genomic diversity is a central goal in evolutionary genetics of natural populations. In species with large continuous geographical distributions the phenotypic signal of local adaptation is ...
Jaakko S. Tyrmi +7 more
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Frontiers in Water, 2022 The isotopic composition of xylem water is frequently measured to identify sources of plant water uptake and evaluate the ecosystem water budget. The most common approach to sample xylem water is cryogenic vacuum distillation (CVD).
William H. Bowers, David G. Williams
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Gymnosperm Resprouting—A Review [PDF]
Plants, 2021 Gymnosperms are generally regarded as poor resprouters, especially when compared to angiosperms and particularly following major disturbance. However, is it this clear-cut? This review investigates two main aspects of gymnosperm resprouting: (i) various papers have provided exceptions to the above generalization—how frequent are these exceptions and ...
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The Karyological Rewiev of Gymnosperms on the Base of Database of the Chromosome Numbers [PDF]
Журнал Сибирского федерального университета: Серия Биология, 2008 A review on karyology of modern gymnosperms with the use of database «Chromosomе numbers of gymnosperms» is done. At present the database includes information on 1036 species, 85 genera, 15 families, 10 orders and 4 classes of gymnosperms. Information on
Elena N. Muratova, Svetlana G. Knyazeva
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Effects of shade on germination traits of the endangered cycad Dioon edule (Zamiaceae)
Botanical Sciences, 2016 The endangered cycad Dioon edule requires shade provided by filtered sunlight under the canopy of trees or maternal plants during initial growth stages.
Laura Yáñez-Espinosa, Joel Flores
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