Results 31 to 40 of about 5,215 (199)

Local Effect of Enhancer of Zeste-Like Reveals Cooperation of Epigenetic and cis-Acting Determinants for Zygotic Genome Rearrangements [PDF]

open access: yes, 2014
International audienceIn the ciliate Paramecium tetraurelia, differentiation of the somatic nucleus from the zygotic nucleus is characterized by massive and reproducible deletion of transposable elements and of 45,000 short, dispersed, single-copy ...
Denby Wilkes, Cyril   +6 more
core   +7 more sources

Novel Insect Florivory Strategy Initiates Autogamy in Unopened Allogamous Flowers

open access: yesScientific Reports, 2018
Insects may influence plant development via pollination, galling, and a range of herbivorous interactions, including florivory. Here, we report a novel form of insect-plant interaction in the form of florivory-initiated autogamy.
N. K. Hillier, E. Evans, R. Evans
semanticscholar   +1 more source

Comparative pollination role of stamens and breeding system in three species of Commelina (Commelinaceae) in Ile-Ife, Nigeria

open access: yesActa Botânica Brasílica, 2013
This study investigated pollination mechanisms and breeding systems in five Commelina variants: two subspecies of Commelina diffusa (C. diffusa subsp. aquatica and C. diffusa subsp. montana, each having two staminodes); two variants of C.
Matthew Oziegbe   +2 more
doaj   +1 more source

Fenologia intrafloral das flores aéreas de Trifolium polymorphum Poir. (Leguminosae) e suas implicações reprodutivas [PDF]

open access: yes, 2009
Trifolium polymorphum is an amphicarpic species that grows in Uruguay, Argentina, Brazil, Paraguay and Chile. Underground flowers are cleistogamous, obligately autogamous and morphologically highly modified in structure and function.
Bernardello, Gabriel Luis Mario   +3 more
core   +3 more sources

Self-fertility studies of some sweet cherry (Prunus avium L.) cultivars and selections

open access: yesInternational Journal of Horticultural Science, 2004
Fruit set of two sweet cherry cultivars (Alex' and 'Stella' ) and four Hungarian selections have been studied over two years following open pollination, unassisted self-pollination (autogamy) and artificial self-pollination (geitonogamy).
Zs. Békefi
doaj   +1 more source

Effect of Simulated Autogamy and Allogamy on the Success of Cephalanthera longifolia and Cephalanthera rubra (Orchidaceae) Fruit Set

open access: yesDiversity
Detailed knowledge of reproductive traits and success is essential for the effective conservation of rare and endangered species. It has been reported that Cephalanthera longifolia and C.
Laurynas Taura, Z. Gudžinskas
semanticscholar   +1 more source

Molecular and morphological phylogenetics of the digitate-tubered clade within subtribe Orchidinae s.s. (Orchidaceae: Orchideae) [PDF]

open access: yes, 2018
The digitate-tubered clade (Dactylorhiza s.l. plus Gymnadenia s.l.) within subtribe Orchidinae is an important element of the North-temperate orchid flora and has become a model system for studying the genetic and epigenetic consequences of organism-wide
Bateman, Richard   +5 more
core   +2 more sources

Ecologia da polinização de Raphiodon echinus (Nees & Mart.) Schauer (Lamiaceae) em Petrolina, PE, Brasil Pollination ecology of Raphiodon echinus (Nees & Mart.) Schauer (Lamiaceae) in Petrolina, Pernambuco State, Brazil

open access: yesActa Botânica Brasílica, 2007
Raphiodon echinus é uma espécie de hábito rasteiro, que ocorre espontaneamente em áreas de caatinga. No presente trabalho foram observados a biologia reprodutiva desta espécie com o objetivo de contribuir com informações sobre sua ecologia da polinização.
Carla Tatiana de Vasconcelos Dias   +1 more
doaj   +1 more source

Is there a hybridization barrier between Gentiana lutea color morphs? [PDF]

open access: yesPeerJ, 2015
In Gentiana lutea two varieties are described: G. lutea var. aurantiaca with orange corolla colors and G. lutea var. lutea with yellow corolla colors. Both color varieties co-occur in NW Spain, and pollinators select flower color in this species.
María Losada   +5 more
doaj   +2 more sources

Floral miniaturisation and autogamy in boreal-arctic plants are epitomised by Iceland’s most frequent orchid, Platanthera hyperborea

open access: yesPeerJ, 2015
Background and Aims. This paper concludes our series of publications comparing island and mainland speciation in European butterfly-orchids, by studying the morphology, phylogenetics and reproductive biology of the controversial circum-arctic species ...
R. Bateman, G. Sramkó, P. Rudall
semanticscholar   +1 more source

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