Results 31 to 40 of about 7,958 (225)
BMC Plant Biology, 2020 Background Hybridization and polyploidization are powerful evolutionary factors that are associated with manifold developmental changes in plants such as irregular progression of meiosis and sporogenesis.
Birthe H. Barke +3 more
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Evolutionary role of apomixis: S. S. Khokhlov’s hypothesis in the light of modern data [PDF]
Известия 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
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Eragrostis curvula, a Model Species for Diplosporous Apomixis
Plants, 2021 Eragrostis curvula (Schrad.) Ness is a grass with a particular apomictic embryo sac development called Eragrostis type. Apomixis is a type of asexual reproduction that produces seeds without fertilization in which the resulting progeny is genetically ...
Jose Carballo +4 more
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Ploidy levels and reproductive behaviour in invasive Hieracium pilosella in Patagonia [PDF]
, 2011 Within a population of invasive Hieracium pilosella in Chilean Patagonia we found two ploidy levels, pentaploid and hexaploid. Each ploidy level was represented by one clone.
Krahulcová, Anna, Krahulec, František
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BMC 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
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Proceedings of the 7th Series of Seminars on Advances in Apomixis Research
Plants, 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
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Apomixis and strategies to induce apomixis to preserve hybrid vigor for multiple generations [PDF]
GM 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
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Plants, 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
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Reproduction - a factor of plant evolution
Acta 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
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Increased apomixis expression concurrent with genetic and epigenetic variation in a newly synthesized Eragrostis curvula polyploid [PDF]
, 2014 Eragrostis curvula includes biotypes reproducing through obligate and facultative apomixis or, rarely, full sexuality. We previously generated a ‘‘tetraploid-dihaploid-tetraploid’’ series of plants consisting of a tetraploid apomictic plant (T), a sexual
Echenique, Carmen Viviana +7 more
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