Results 41 to 50 of about 875 (160)
Dysploidy and polyploidy trigger strong variation of chromosome numbers in the prayer-plant family (Marantaceae) [PDF]
Plant Systematics and Evolution, 2020 AbstractKaryotype analyses in species of the family Marantaceae (550 species, 31 genera) were conducted to shed light on the reported strong variation of chromosome number and size and the occurrence of polyploidy. Special attention was paid to the alterations in basic chromosome numbers, karyotypes and ploidy levels.
Grit Winterfeld +4 more
openaire +2 more sources
Disentangling Crocus Series Verni and Its Polyploids
Biology, 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
Karyotype characterization and evolution of chromosome number in Cactaceae with special emphasis on subfamily Cactoideae [PDF]
Acta Botânica Brasílica, 2019 Cactaceae species are karyotypically well-known with x = 11 and chromosome number variation due mainly to polyploidization. However, both assumptions are based on descriptive observations without taking an evolutionary framework of Cactaceae into account.
Juliana P. Castro +5 more
doaj +1 more source
Frontiers in Plant Science, 2021 The mainly Australian grass genus Austrostipa (tribe Stipeae) comprising approximately 64 species represents a remarkable example of an evolutionary radiation.
Natalia Tkach +7 more
doaj +1 more source
Potential use of wild Onobrychis species for climate change mitigation and adaptation
Crop Science, Volume 63, Issue 6, Page 3153-3174, November/December 2023., 2023 Abstract Climate change is threatening environmental and nutritional security. In this scenario, forage crops and their wild relatives may contribute to maintain ecosystem services and minimize the effects of global warming. We reviewed the literature regarding the ecological, agronomic, and nutraceutical values of wild Onobrychis Miller species ...
Anis Sakhraoui +4 more
wiley +1 more source
Broad variation in rates of polyploidy and dysploidy across flowering plants is correlated with lineage diversification [PDF]
, 2021 ABSTRACTChanges in chromosome number are considered an important driver of diversification in angiosperms. Single chromosome number changes caused by dysploidy may produce strong reproductive barriers leading to speciation. Polyploidy, or whole genome duplication, yields new species that are often reproductively isolated from progenitors and may ...
Shing H. Zhan +2 more
openaire +1 more source
Synteny analysis in Rosids with a walnut physical map reveals slow genome evolution in long-lived woody perennials. [PDF]
, 2015 BackgroundMutations often accompany DNA replication. Since there may be fewer cell cycles per year in the germlines of long-lived than short-lived angiosperms, the genomes of long-lived angiosperms may be diverging more slowly than those of short-lived ...
Aradhya, Mallikarjuna +9 more
core +2 more sources
Ancient hybridization in Curcuma (Zingiberaceae)—Accelerator or brake in lineage diversifications?
The Plant Journal, Volume 116, Issue 3, Page 773-785, November 2023., 2023 SUMMARY Hybridization is a widespread phenomenon in the evolution of plants and exploring its role is crucial to understanding diversification processes of many taxonomic groups. Recently, more attention is focused on the role of ancient hybridization that has repeatedly been shown as triggers of evolutionary radiation, although in some cases, it can ...
Jana Skopalíková +10 more
wiley +1 more source
Turkish Journal of Botany, 2020 Chromosomal data are valuable and very useful for revealing evolution and speciation processes. Due to its wide distribution throughout the world, morphological differences, and chromosomal alterations, Erodium L'Her. is an important genus for investigating the relationship between chromosomal alterations and karyotype evolution.
Martin, Esra +4 more
openaire +4 more sources
Chromosomal diversification and karyotype evolution of diploids in the cytologically diverse genus Prospero (Hyacinthaceae) [PDF]
, 2013 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work ...
Andrew R Leitch +7 more
core +2 more sources