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Evolution, 2023
Abstract In haploid species, sexual reproduction by selfing lacks the common benefits from recombination and is indistinguishable from asexual reproduction at the genetic level. Nevertheless, the evolution of self-compatibility, known as homothallism in organisms with mating types, has occurred hundreds of times in fungi.
Bart P S Nieuwenhuis +2 more
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Abstract In haploid species, sexual reproduction by selfing lacks the common benefits from recombination and is indistinguishable from asexual reproduction at the genetic level. Nevertheless, the evolution of self-compatibility, known as homothallism in organisms with mating types, has occurred hundreds of times in fungi.
Bart P S Nieuwenhuis +2 more
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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
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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
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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 ...
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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 self‐pollination. 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
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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
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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
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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
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Functional Ecology, 2012
Summary1.Unreliable pollinator service is thought to promote the evolution of self‐compatible plant breeding systems, because selfing may provide reproductive assurance when outcrossing opportunity is limited. The recurrent evolution of self‐compatible homostyly from obligately outcrossing heterostylous species has been regarded as a classic example of
de Vos, Jurriaan M +4 more
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Summary1.Unreliable pollinator service is thought to promote the evolution of self‐compatible plant breeding systems, because selfing may provide reproductive assurance when outcrossing opportunity is limited. The recurrent evolution of self‐compatible homostyly from obligately outcrossing heterostylous species has been regarded as a classic example of
de Vos, Jurriaan M +4 more
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Facultative dichogamy and reproductive assurance in partially protandrous plants
Oikos, 2001Following the pioneering work on pollination biology of the late 18th and 19th centuries, the phenomenon of dichogamy (the separation of presentation of pollen and stigmas in time) was, together with a plethora of other floral features, interpreted exclusively as an adaptive mechanism enhancing outcrossing.
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Clonal reproduction assured by sister chromosome pairing in dojo loach, a teleost fish
Chromosome Research, 2018Wild-type dojo loach (Misgurnus anguillicaudatus) commonly reproduces bisexually as a gonochoristic diploid (2n = 50), but gynogenetically reproducing clonal diploid lines (2n = 50) exist in certain districts in Japan. Clones have been considered to develop from past hybridization event(s) between two genetically diverse groups, A and B, within the ...
Masamichi Kuroda +4 more
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