Results 211 to 220 of about 20,542 (248)
Disentangling the role of herkogamy, dichogamy and pollinators in plant reproductive assurance
Plant Ecology and Diversity, 2018 Background: Autonomous selfing can be favoured by reduced floral herkogamy, dichogamy and pollinator visitation.
Lorena Ashworth
exaly +3 more sources
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Reproductive assurance and the evolution of uniparental reproduction in flowering plants
2006Abstract The assurance of reproduction when outcrossing is unpredictable is a venerable and widely invoked explanation for uniparental reproduction via self-fertilization or asexuality. This hypothesis is supported by evidence that seed production by outcrossing plants is frequently pollen limited.
Christopher G Eckert +2 more
openaire +1 more source
Genetic cost of reproductive assurance in a self-fertilizing plant
Nature, 2002The transition from outcrossing to self-fertilization is one of the most common evolutionary trends in plants. Reproductive assurance, where self-fertilization ensures seed production when pollinators and/or potential mates are scarce, is the most long-standing and most widely accepted explanation for the evolution of selfing, but there have been few ...
Christopher R, Herlihy +1 more
openaire +2 more sources
Evolution; International Journal of Organic Evolution, 2008
Reproductive assurance through selfing during colonization events or when population densities are low has often been put forward as a mechanism selecting for the evolution of self-fertilization. Such arguments emphasize on the role of both local demography and metapopulation processes.
François Munoz
exaly +3 more sources
Reproductive assurance through selfing during colonization events or when population densities are low has often been put forward as a mechanism selecting for the evolution of self-fertilization. Such arguments emphasize on the role of both local demography and metapopulation processes.
François Munoz
exaly +3 more sources
Seasonal cleistogamy: a conditional strategy to provide reproductive assurance
Acta Botanica Neerlandica, 1995Three populations of the cleistogamous species Oxalis acetosella and one population of the cleistogamous species Viola hirta (during 2 years), were investigated to determine whether the fertilization success of chasmogamous flowers influences the number ...
PETER REDBO-TORSTENSSON, HENRIK BERG
openaire +1 more source
American Journal of Botany, 2003
Reproductive assurance is frequently used to explain the evolution of selfing but has become controversial from lack of evidence. We studied the pollination system of the near carnivorous plant genus Roridula and showed that reproductive assurance is important in this system. Hemipterans have a digestive mutualism with Roridula and have been implicated
Bruce Anderson, J J Midgley
exaly +3 more sources
Reproductive assurance is frequently used to explain the evolution of selfing but has become controversial from lack of evidence. We studied the pollination system of the near carnivorous plant genus Roridula and showed that reproductive assurance is important in this system. Hemipterans have a digestive mutualism with Roridula and have been implicated
Bruce Anderson, J J Midgley
exaly +3 more sources
Parasitism, reproductive assurance and the evolution of reproductive mode in a freshwater snail
Proceedings of the Royal Society of London. Series B: Biological Sciences, 1994The Red Queen model for the maintenance of sex suggests that parasites may evolve rapid adaptation to common host genotypes, and thus there would be strong frequency-dependent selection for those rare host genotypes generated through sex. The reproductive assurance hypothesis asserts that parthenogens are favoured under conditions where male gametes ...
openaire +1 more source
Reproductive assurance varies with flower size in Collinsia parviflora (Scrophulariaceae)
American Journal of Botany, 2003A central question in plant evolutionary ecology is how mixed mating systems are maintained in the face of selection against selfâpollination. Recently, attention has focused on the potential reproductive assurance (RA) benefit of selfing: the ability to produce seeds via autonomous selfing when the potential for outcrossing is reduced or absent.
Elizabeth, Elle, Robert, Carney
openaire +2 more sources
The reproductive assurance benefit of selfing: importance of flower size and population size
Oecologia, 2007Autonomous selfing can provide reproductive assurance (RA) for flowering plants that are unattractive to pollinators or in environments that are pollen limited. Pollen limitation may result from the breakdown of once-continuous habitat into smaller, more isolated patches (habitat fragmentation) if fragmentation negatively impacts pollinator populations.
Brad F, Kennedy, Elizabeth, Elle
openaire +2 more sources
Acta Ecologica Sinica, 2009
Abstract Herkogamy may act as a mechanism to reduce interference between the reproductive functions of female and male organs, but too great a distance between stigmas and anthers may also decrease the outcross pollen transfer and male and female fitness.
Cheng-Jiang Ruan +3 more
openaire +1 more source
Abstract Herkogamy may act as a mechanism to reduce interference between the reproductive functions of female and male organs, but too great a distance between stigmas and anthers may also decrease the outcross pollen transfer and male and female fitness.
Cheng-Jiang Ruan +3 more
openaire +1 more source