Results 21 to 30 of about 875 (160)

Karyotypic analyses and genomic affinity among Argentinean species of Passiflora [PDF]

open access: yesRodriguésia, 2020
The genus Passiflora (Passifloraceae) has more than 500 species, nineteen are native to Argentina. By their austral distribution, these species were included in breeding programs to obtain ornamental varieties tolerant to low temperatures.
Verónica Lucía Bugallo   +3 more
doaj   +3 more sources

On the way to diploidization and unexpected ploidy in the grass Sporobolus section Spartina mesopolyploids [PDF]

open access: yesNature Communications
Plant history is characterized by cyclical whole genome duplication and diploidization with important biological and ecological consequences. Here, we explore the genome history of two related iconic polyploid grasses (Sporobolus alterniflorus and S ...
Armel Salmon   +14 more
doaj   +2 more sources

Does the evolution of micromorphology accompany chromosomal changes on dysploid and polyploid levels in the Barnardia japonica complex (Hyacinthaceae)? [PDF]

open access: yesBMC Plant Biology, 2023
Background Chromosome number and genome size changes via dysploidy and polyploidy accompany plant diversification and speciation. Such changes often impact also morphological characters.
Hyeonjin Kim   +6 more
doaj   +2 more sources

Recurrent polyploidy and descending dysploidy as plant genome shapers: Insights from Sporobolus (Chloridoideae, Poaceae) genomes. [PDF]

open access: yesPLoS ONE
Polyploidization or whole genome duplication (WGD) is a source of genetic and phenotypic novelties and is a widespread mechanism of speciation across plant lineages. It is often followed by complex genome dynamics, including diploidization.
Morgane Milin   +7 more
doaj   +2 more sources

Chromosome number variation and phylogenetic divergence of East Asian Cirsium sect. Onotrophe subsect. Nipponocirsium (Compositae), with a new species from Taiwan [PDF]

open access: yesBotanical Studies
Background This study explored chromosome number variation, phylogenetic divergence, and mechanisms underlying speciation in East Asian thistle Cirsium Mill. sect. Onotrophe (Cass.) DC. subsect. Nipponocirsium Kitam. (Compositae).
Chih-Yi Chang   +5 more
doaj   +2 more sources

Tracing the Evolution of the Angiosperm Genome from the Cytogenetic Point of View. [PDF]

open access: yesPlants (Basel), 2022
Cytogenetics constitutes a branch of genetics that is focused on the cellular components, especially chromosomes, in relation to heredity and genome structure, function and evolution.
Borowska-Zuchowska N   +3 more
europepmc   +3 more sources

The new chromosomal data and karyotypic variations in genus Salvia L. (Lamiaceae): dysploidy, polyploidy and symmetrical karyotypes

open access: yesCaryologia, 2022
In this study, it was aimed to determine the chromosome number of 21 Salvia L. species, to determine chromosome morphology, to reveal karyotype analysis in detail and to contribute to the cytotaxonomy of Salvia.
Halil Erhan Eroğlu   +3 more
doaj   +2 more sources

Karyotype evolution in Phalaris (Poaceae): The role of reductional dysploidy, polyploidy and chromosome alteration in a wide-spread and diverse genus. [PDF]

open access: yesPLoS ONE, 2018
Karyotype characteristics can provide valuable information on genome evolution and speciation, in particular in taxa with varying basic chromosome numbers and ploidy levels.
Grit Winterfeld   +4 more
doaj   +6 more sources

Chromosomal Evolution and Apomixis in the Cruciferous Tribe Boechereae [PDF]

open access: yesFrontiers in Plant Science, 2020
The mustard family (Brassicaceae) comprises several dozen monophyletic clades usually ranked as tribes. The tribe Boechereae plays a prominent role in plant research due to the incidence of apomixis and its close relationship to Arabidopsis.
Terezie Mandáková   +7 more
doaj   +3 more sources

Unraveling the evolutionary complexity of Lycoris: Insights into chromosomal variation, genome size, and phylogenetic relationships [PDF]

open access: yesPlant Diversity
Hybridization and polyploidy are key drivers of species diversity and genome variation in Lycoris, but their cytological and evolutionary consequences remain poorly understood.
Xiaochun Shu   +7 more
doaj   +2 more sources

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