Results 21 to 30 of about 8,699 (213)
Parasites can impose strong selection on hosts. In response, some host populations have adapted via the evolution of defenses that prevent or impede infection by parasites.
McKenna J Penley +2 more
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Yeast Sex: Surprisingly High Rates of Outcrossing between Asci
Saccharomyces yeasts are an important model system in many areas of biological research. Very little is known about their ecology and evolution in the wild, but interest in this natural history is growing. Extensive work with lab strains in the last century uncovered the Saccharomyces life cycle.
Helen A Murphy, Clifford W Zeyl
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Molecular evidence of outcrossing rate variability in Brassica napus [PDF]
A leafy crop of Brassica napus L. called nabicol has been grown by farmers in northwestern Spain for many years, being an important horticultural product during the winter season. A collection of landraces of a Brassica napus leafy crop called nabicol is kept at 'Misión Biológica de Galicia' (CSIC-Spain) which can be used to search for desirable ...
Soengas Fernández, María del Pilar +4 more
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Mating system parameters in a high density population of andirobas in the Amazon forest
The objective of this work was to estimate the mating system parameters of a andiroba (Carapa guianensis) population using microsatellite markers and the mixed and correlated mating models.
Tatiana de Campos +6 more
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Plant Mating Systems Often Vary Widely Among Populations
Most flowering plants are hermaphroditic, yet the proportion of seeds fertilized by self and outcross pollen varies widely among species, ranging from predominant self-fertilization to exclusive outcrossing.
Michael R. Whitehead +4 more
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BackgroundIntrogression plays an important role in evolution of plant species via its influences on genetic diversity and differentiation. Outcrossing determines the level of introgression but little is known about the relationships of outcrossing rates,
Han-Bing Xia +4 more
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Floral traits influencing outcrossing rate in rice
This article 'Floral traits influencing outcrossing rate in rice' appeared in the International Rice Research Notes series, created by the International Rice Research Institute (IRRI) to expedite communication among scientists concerned with the development of improved technology for rice and rice-based systems.
Ramalingam, J. +3 more
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Premise of the study: Lamium amplexicaule is a cleistogamous plant that produces both closed flowers (obligately self-pollinated) and open flowers (potentially outcrossed).
Bojana Stojanova +3 more
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Does anthocyanin affect outcrossing rates in Datura Stramonium (Solanaceae)? [PDF]
In this paper, I investigate whether the presence or absence of anthocyanin is neutral with respect to reproduction in Datura stramonium. The observations concern the portion of the life cycle spanning pollination to germination. Pollinators do not appear to distinguish between floral morphs, as revealed by nonbiased distribution of fluorescent powder ...
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Outcrossing rates in the gynomonoecious‐gynodioecious species Dianthus sylvestris (Caryophyllaceae) [PDF]
Some species described as gynodioecious are truly gynomonoecious‐gynodioecious. Three distinct phenotypes may be found in their natural populations—female and hermaphrodite pure‐sexed plants bearing either only pistillate or perfect flowers, respectively, and mixed plants bearing both types of flowers.
Carine L, Collin, Jacqui A, Shykoff
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