Results 31 to 40 of about 8,010 (222)

Evolutionary role of apomixis: S. S. Khokhlov’s hypothesis in the light of modern data [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Серия Химия. Биология. Экология, 2022
In 1949 S. S. Khokhlov (one of the founders of the Russian scientifi c school on the problem of apomixes) proved the original conception of the progressive evolutionary role of apomixis.
Yudakova, Olga Ivanovna   +1 more
doaj   +1 more source

Implications of hybridisation and cytotypic differentiation in speciation assessed by AFLP and plastid haplotypes : a case study of Potentilla alpicola La Soie [PDF]

open access: yes, 2012
Background: Hybridisation is presumed to be an important mechanism in plant speciation and a creative evolutionary force often accompanied by polyploidisation and in some cases by apomixis. The Potentilla collina group constitutes a particularly suitable
Dobeš, Christoph   +2 more
core   +1 more source

Toward in vitro fertilization in Brachiaria spp. [PDF]

open access: yes, 2010
Brachiaria are forage grasses widely cultivated in tropical areas. In vitro pollination was applied to accessions of Brachiaria spp. by placing pollen of non-dehiscent anthers on a solid medium near isolated ovaries.
Alves, E.R.   +5 more
core   +2 more sources

Characterization and discovery of miRNA and miRNA targets from apomictic and sexual genotypes of Eragrostis curvula

open access: yesBMC Genomics, 2019
Background Weeping lovegrass (Eragrostis curvula [Shrad.] Nees) is a perennial grass found in semi-arid regions that is well adapted for growth in sandy soils and drought conditions. E.
Ingrid Garbus   +6 more
doaj   +1 more source

Proceedings of the 7th Series of Seminars on Advances in Apomixis Research

open access: yesPlants, 2021
These proceedings contain the abstracts for the presentations given at the 7th biennial Seminars on Advances in Apomixis Research, held virtually on 2–3 and 9 December 2020.
Viviana Echenique   +2 more
doaj   +1 more source

Apomixis and strategies to induce apomixis to preserve hybrid vigor for multiple generations [PDF]

open access: yesGM Crops & Food, 2020
Hybrid seeds of several important crops with supreme qualities including yield, biotic and abiotic stress tolerance have been cultivated for decades. Thus far, a major challenge with hybrid seeds is that they do not have the ability to produce plants with the same qualities over subsequent generations.
Sajid Fiaz   +5 more
openaire   +2 more sources

Variation of Residual Sexuality Rates along Reproductive Development in Apomictic Tetraploids of Paspalum

open access: yesPlants, 2022
Most apomictic plants are facultative, maintaining the ability to reproduce sexually at different frequencies depending on the taxa, ploidy, and reproductive stage.
Anna Verena Reutemann   +5 more
doaj   +1 more source

Genetic fine-mapping of DIPLOSPOROUS in Taraxacum (dandelion; Asteraceae) indicates a duplicated DIP-gene [PDF]

open access: yes, 2010
Background DIPLOSPOROUS (DIP) is the locus for diplospory in Taraxacum, associated to unreduced female gamete formation in apomicts. Apomicts reproduce clonally through seeds, including apomeiosis, parthenogenesis, and autonomous or pseudogamous ...
Kitty Vijverberg   +3 more
core   +3 more sources

Reproduction - a factor of plant evolution

open access: yesActa Societatis Botanicorum Poloniae, 2014
The process of reproduction (amphimixis and apomixis) represents a major factor of evolution. The facultative apomictic species are the pioneers of evolution.
Ion I. Bǎra
doaj   +1 more source

Cyto-Embryological Analysis of Wild Kentucky Bluegrass Germplasm in Gansu Province, China

open access: yesAgronomy, 2023
Reproduction studies, particularly embryology, represent basic information of any plant. However, the current embryological information is fragmentary for Kentucky bluegrass (Poa pratensis L.).
Jinqing Zhang, Huiling Ma
doaj   +1 more source

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