Results 21 to 30 of about 1,002,761 (261)

Genome size evolution in the Archaea [PDF]

open access: yesEmerging Topics in Life Sciences, 2018
What determines variation in genome size, gene content and genetic diversity at the broadest scales across the tree of life? Much of the existing work contrasts eukaryotes with prokaryotes, the latter represented mainly by Bacteria. But any general theory of genome evolution must also account for the Archaea, a diverse and ecologically important group ...
Siri Kellner   +5 more
openaire   +6 more sources

Retrotransposon Proliferation Coincident with the Evolution of Dioecy in Asparagus

open access: yesG3: Genes, Genomes, Genetics, 2016
Current phylogenetic sampling reveals that dioecy and an XY sex chromosome pair evolved once, or possibly twice, in the genus Asparagus. Although there appear to be some lineage-specific polyploidization events, the base chromosome number of 2n = 2× = 20
Alex Harkess   +8 more
doaj   +1 more source

Whence Came These Plants Most Foul? Phylogenomics and Biogeography of Lowiaceae (Zingiberales)

open access: yesFrontiers in Ecology and Evolution, 2022
Lowiaceae (order Zingiberales) is a small family of forest herbs in Southeast Asia. All species belong to the genus Orchidantha. They are known for possessing orchid-like flowers that are smelly, apparently mimicking dead animals, feces, or mushrooms ...
Matti A. Niissalo   +8 more
doaj   +1 more source

Genomes and Transcriptomes of Duckweeds

open access: yesFrontiers in Chemistry, 2018
Duckweeds (Lemnaceae family) are the smallest flowering plants that adapt to the aquatic environment. They are regarded as the promising sustainable feedstock with the characteristics of high starch storage, fast propagation, and global distribution. The
Dong An   +4 more
doaj   +1 more source

Distribution and variability of the Balkan endemic Geum bulgaricum (Rosaceae) - a species of European concern [PDF]

open access: yesBotanica Serbica, 2018
As a European endemic restricted to a few European countries, Geum bulgaricum is here treated as a “target species” or “species of European concern”. Although of great international significance, its distribution is insufficiently known.
Dmitar Lakušić   +7 more
doaj   +1 more source

Is There an Upper Limit to Genome Size? [PDF]

open access: yesTrends in Plant Science, 2017
At 50-fold the size of the human genome (3 Gb), the staggeringly huge genome of 147.3 Gb recently discovered in the fern Tmesipteris obliqua is comparable in size to those of the other plant and animal record-holders (i.e., Paris japonica, a flowering plant with a genome size of 148.8 Gb, and Protopterus aethiopicus, a lungfish with a genome of 130 Gb).
Hidalgo, Oriane   +5 more
openaire   +4 more sources

Chromosome number, karyotype morphology, heterochromatin distribution and nuclear DNA content of some talitroidean amphipods (Crustacea: Gammaridea)

open access: yesEuropean Journal of Entomology, 2008
Chromosome number, karyotype formula, C-banding pattern, genome size and DNA base composition were studied in three species of Hyalidae and seven species of Talitridae.
Angelo LIBERTINI   +2 more
doaj   +1 more source

Phylogeny more than plant height and leaf area explains variance in seed mass

open access: yesFrontiers in Plant Science, 2023
Although variation in seed mass can be attributed to other plant functional traits such as plant height, leaf size, genome size, growth form, leaf N and phylogeny, until now, there has been little information on the relative contributions of these ...
Yingnan Wang   +3 more
doaj   +1 more source

Dynamic hybridization between two spleenworts, Asplenium incisum and Asplenium ruprechtii in Korea

open access: yesFrontiers in Plant Science, 2023
Natural hybridization between Asplenium incisum and A. ruprechtii has been observed in Northeast Asia and its allotetraploid species, A. castaneoviride, was reported.
Hyoung Tae Kim   +2 more
doaj   +1 more source

Disentangling Crocus Series Verni and Its Polyploids

open access: yesBiology, 2023
Spring crocuses, the eleven species within Crocus series Verni (Iridaceae), consist of di- and tetraploid cytotypes. Among them is a group of polyploids from southeastern Europe with yet-unclear taxonomic affiliation. Crocuses are generally characterized
Irena Raca   +5 more
doaj   +1 more source

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