Results 211 to 220 of about 21,292 (252)
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Environmental variation for outcrossing rate in rapeseed (Brassica napus)
Theoretical and Applied Genetics, 1992Rapeseed (Brassica napus) is a predominantly selfpollinated crop with about one-third outcrossing. The outcrossing rate may be influenced by environmental factors, and hence changes in the heterozygosity level of a variety may occur during multiplication.
Becker, H. C. +2 more
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Evolution, 1989
The genetic consequences of a plant's mating system depend on both the degree of outcrossing and the genetic relationship between mates. We examined the electrophoretic genotypes of seeds derived from cleistogamous (CL) and chasmogamous (CH) flowers in six populations of the facultatively cleistogamous annual, Impatiens capensis.
Donald M, Waller, Susan E, Knight
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The genetic consequences of a plant's mating system depend on both the degree of outcrossing and the genetic relationship between mates. We examined the electrophoretic genotypes of seeds derived from cleistogamous (CL) and chasmogamous (CH) flowers in six populations of the facultatively cleistogamous annual, Impatiens capensis.
Donald M, Waller, Susan E, Knight
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Outcrossing rates in Australian populations of subterranean clover
Australian Journal of Agricultural Research, 1973Quantitative estimates were made of the extent of cross-pollination in four populations of subterranean clover. Estimates of outcrossing varied from 0 to 0.22% with a mean of 0.15%, indicating that subterranean clover consistently outcrosses at a low rate in Australian environments.
DR Marshall, P Broue
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Outcrossing rate in cultivated autotetraploid potato
American Potato Journal, 1993Outcrossing rates in potato were measured in an open-pollination field experiment at a location in the Peruvian Andes. Embryo spot, a dominant genetic seed marker, was used to measure outcrossing rate. The source of the dominant marker, the donor, was interplanted among recipient clones lacking the marker (recessive genotype), for which outcrossing was
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Estimation of outcrossing rates in Duglas-fir using isozyme markers
Theoretical and Applied Genetics, 1982Seeds produced under open-pollination were collected from eight natural stands and a plus-tree seed orchard of Douglas-fir. These seeds were germinated and both diploid embryos and haploid gametophytes were analyzed by starch-gel electrophoresis. Eleven variable loci were resolved for both kinds of tissue and used as genetic markers for estimating ...
D V, Shaw, R W, Allard
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Outcrossing rates and male sterility in natural populations of Plantago coronopus
Theoretical and Applied Genetics, 1988Outcrossing rates were estimated in three populations of the gynodioecious species Plantago coronopus by means of electrophoresis of adult plants and their natural progenies. A multilocus estimation procedure was used. Heterogeneity among the pollen-pool allele frequencies did not exist either in space of in time.
Wolff, K., Friso, B., Van Damme, J.
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OUTCROSSING RATES IN BARLEY POPULATIONS IN THE CANADIAN PRAIRIES
Canadian Journal of Genetics and Cytology, 1980Using three morphological markers, the magnitude of natural cross-fertilization in three successive generations, F3, F4and F5of four single crosses of barley (Hordeum vulgare L.) was estimated under dryland conditions of the Canadian Prairies. The average frequency of outcrossing was very low (0.35%).
H. R. Chaudhary, S. Jana, S. N. Acharya
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Factors affecting variation in outcrossing rate in Eucalyptus globulus
Australian Journal of Botany, 2004The mating system of the animal-pollinated forest tree species Eucalyptus globulus Labill. was investigated in a clonal seed orchard to determine the importance of self-incompatibility, floral timing, floral abundance and canopy position on explaining variation in outcrossing rates.
Briony Patterson +3 more
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Outcrossing Rates in Autumn and Spring‐Sown Barley
Plant Breeding, 1987AbstractNatural outcrossing is a potential cause of the admixtures which are often observed, especially in winter barley. Outcrossing was studied in yield trials with hap laid ‐derived homozygous offspring, lines from tour crosses between winter and spring barley varieties.
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Environmental effects on long-range outcrossing rates in maize
Agriculture, Ecosystems & Environment, 2011Abstract With the aims of clarifying the effects of genetically modified crops on the environment, along with investigating the coexistence rules for genetically modified (GM) crops and existing non-GM crops, we carried out outcrossing experiments with maize.
Shigeto Kawashima +6 more
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