Results 31 to 40 of about 455 (164)

A study of the heterochronic sense/antisense RNA representation in florets of sexual and apomictic Paspalum notatum

open access: yesBMC Genomics, 2021
Background Apomixis, an asexual mode of plant reproduction, is a genetically heritable trait evolutionarily related to sexuality, which enables the fixation of heterozygous genetic combinations through the development of maternal seeds.
Maricel Podio   +4 more
doaj   +1 more source

Apospory in Pteris sulcata L. [PDF]

open access: yesBotanical Gazette, 1919
1. The gametophyte generation of Pteris sulcata L. is ordinarily produced by the germination of a spore. 2. The embryo sporophyte is of apogamous origin. 3. The gametophyte generation of Pteris sulcata under certain conditions was produced aposporously. 4.
openaire   +2 more sources

Gametophyte and sporophyte of tree ferns in vitro culture

open access: yesActa Societatis Botanicorum Poloniae, 2011
Experiments had been carried out on gametophytes and very young fronds of sporophytes with application of Murashige and Skoog (1962) medium. The paper described the results of 15 years in vitro experiments on 16 species of tree ferns belonging to various
Katarzyna Goller, Jan J. Rybczyński
doaj   +1 more source

Amphicarpic plants: definition, ecology, geographic distribution, systematics, life history, evolution and use in agriculture

open access: yesBiological Reviews, Volume 95, Issue 5, Page 1442-1466, October 2020., 2020
ABSTRACT Although most plants produce all of their fruits (seeds) aboveground, amphicarpic species produce fruits (seeds) both above‐ and belowground. Our primary aims were to determine the number of reported amphicarpic species and their taxonomic, geographic, life form and phylogenetic distribution, to evaluate differences in the life history of ...
Keliang Zhang   +5 more
wiley   +1 more source

Embryological studies on Fragaria x ananassa Duch. after pollination by three species of Potentilla

open access: yesActa Societatis Botanicorum Poloniae, 2014
Embryological studies were carried out after pollinating four female varieties of Fragaria ananassa Duch. (Freja, Sonja, Mieze Schindler, Reine des Precoce) with three species of Poteiatilla (P. geoides, P. rupestris, P. fruticosa).
Katarzyna Niemirowicz-Szczytt
doaj   +1 more source

In Silico and Fluorescence In Situ Hybridization Mapping Reveals Collinearity between the Pennisetum squamulatum Apomixis Carrier-Chromosome and Chromosome 2 of Sorghum and Foxtail Millet. [PDF]

open access: yesPLoS ONE, 2016
Apomixis, or clonal propagation through seed, is a trait identified within multiple species of the grass family (Poaceae). The genetic locus controlling apomixis in Pennisetum squamulatum (syn Cenchrus squamulatus) and Cenchrus ciliaris (syn Pennisetum ...
Sirjan Sapkota   +7 more
doaj   +1 more source

Studies in Apospory and Apogamy in Ferns [PDF]

open access: yesAnnals of Botany, 1907
n ...
Farmer, J. Bretland, Digby, L.
openaire   +2 more sources

Apomixis in Anthoxanthum nitens and A. repens (Poaceae L.) in the Saratov region flora [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Серия Химия. Биология. Экология
The article presents the results of cytoembryological analysis of four cenopopulations of two Anthoxanthum L. species from the fl ora of the Saratov region: A. nitens (Weber) Y.Schouten & Veldkamp and A. repens (Host) Veldkamp.
Kaybeleva, Elmira I.   +1 more
doaj   +1 more source

APOSPORY IN THE CHARACEAE

open access: yesAnnals of Botany, 1887
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

Embryo sac development in some representatives of the tribe Cynodonteae (Poaceae)

open access: yesBothalia: African Biodiversity & Conservation, 1994
Chloris virgata Sw., Cynodon dactylon (L.) Pers., Harpochloa falx (L. f.) Kuntze, and Tragus berteronianus Schult. have a Polygonum type of embryo sac development.
A. Strydom, J. J. Spies
doaj   +1 more source

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