Results 121 to 130 of about 1,113 (155)

The ecology of polyploid establishment and exclusion, with implications for polyploid biogeography. [PDF]

New Phytol
Osterman WHA, Hagan JG, Whitton J, Bjorkman AD.   +3 more
europepmc   +1 more source

Progeny array analysis to estimate outcrossing rates, inbreeding coefficients, and inbreeding depression among native, naturalized, and invasive populations of Mimulus guttatus (Phrymaceae). [PDF]

Front Plant Sci
Dudash MR, Berg JA, Zimmer EA.
europepmc   +1 more source

POLLEN CARRYOVER, GEITONOGAMY, AND THE EVOLUTION OF DECEPTIVE POLLINATION SYSTEMS IN ORCHIDS

Ecology, 1999
Geitonogamy (transfer of pollen among flowers on the same plant) may lead to reduced outcrossing and interfere with sex function. Orchids with pollen packaged into pollinaria would be expected to be particularly vulnerable to the loss of cross-mating opportunities imposed by geitonogamy.
Steven D. Johnson
exaly   +5 more sources

Pollinator directionality as a response to nectar gradient: promoting outcrossing while avoiding geitonogamy

Plant Biology, 2011
AbstractPlants with multiple flowers could be prone to autonomous self‐pollination and insect‐mediated geitonogamy, but physiological and ecological features have evolved preventing costs related to autogamy. We studied the rare perennial herb Dictamnus albus as a model plant, with the aim of describing the plant–pollinator system from both plant and ...
Marta Galloni, Alessandro Fisogni
exaly   +6 more sources

Incidence of geitonogamy differs between two populations in the hawkmoth-pollinated Platanthera bifolia (Orchidaceae)

Canadian Journal of Botany, 2004
We estimated geitonogamy in individuals with different inflorescence sizes in a small (100-200 flowering individuals) and a large population (>700 flowering individuals) of the self-compatible, moth-pollinated orchid Platanthera bifolia (L.) L.
Maad, Johanne,, Reinhammar, Lars Gunnar
exaly   +10 more sources

Geitonogamy

, 2008
exaly   +3 more sources

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Phenological regulation of opportunities for within-inflorescence geitonogamy in the clonal species, iris versicolor (iridaceae)

American Journal of Botany, 1996
Opportunities for selfing through geitonogamy are possible if more than one flower within the same clone, inflorescence, or floral unit is open at the same time. In a total of 200 inflorescences in two natural populations of Iris versicolor, flowers were observed and classified daily on the basis of anther dehiscence and stigma receptivity. Analysis of
Paul Kron, Steven C Stewart
exaly   +4 more sources

Geitonogamy: The neglected side of selfing

Trends in Ecology and Evolution, 1993
Flowers of many angiosperm species are well adapted to avoid self-pollination, for instance by temporal and spatial separation of pollen and stigma within the same flower. However, such adaptations do not prevent the transfer of pollen between flowers on the same plant (geitonogamy).
Peter Klinkhamer, Tom J de Jong
exaly   +3 more sources

Contributions of Autogamy and Geitonogamy to Self-Fertilization in a Mass-Flowering, Clonal Plant

Ecology, 2000
The fitness consequences of self-fertilization are largely determined by how self-pollination occurs. Within-flower self-pollination (autogamy) may be advantageous, since it can provide reproductive assurance without much seed or pollen discounting. In contrast, between-flower self-pollination (geitonogamy) provides no reproductive assurance and can ...
Christopher G Eckert
exaly   +4 more sources

Plasticity in selective embryo abortion may limit the mating costs of geitonogamy in self-compatible plants: a hypothesis [PDF]

American Journal of Botany, 2020
Qiaoqiao Huang, Spencer Charles Hilton Barrett   +1 more
exaly   +2 more sources