Norman C. Ellstrand

Norman C. Ellstrand's AcademicInfluence.com Rankings

Norman C. Ellstrand

Biology

#8651

World Rank

#11762

Historical Rank

Botany

#263

World Rank

#953

Historical Rank

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Biology

Norman C. Ellstrand's Degrees

PhD Botany University of California, Davis
Masters Botany University of California, Davis
Bachelors Biology University of California, Davis

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Norman C. Ellstrand's Published Works

Number of citations in a given year to any of this author's works

Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author

Published Works

POPULATION GENETIC CONSEQUENCES OF SMALL POPULATION SIZE: Implications for Plant Conservation (1993) (2514)
Hybridization as a stimulus for the evolution of invasiveness in plants? (2006) (1124)
Gene Flow and Introgression from Domesticated Plants into Their Wild Relatives (1999) (1015)
Patterns of Genotypic Diversity in Clonal Plant Species (1987) (1014)
Hybridization as a stimulus for the evolution of invasiveness in plants (2000) (650)
What can molecules and morphological markers tell us about plant hybridization (1993) (605)
Gene flow by pollen: implications for plant conservation genetics (1992) (480)
Distribution of spontaneous plant hybrids. (1996) (422)
Dangerous Liaisons?: When Cultivated Plants Mate with Their Wild Relatives (2003) (341)
Current knowledge of gene flow in plants: implications for transgene flow. (2003) (294)
Hybridization and the evolution of invasiveness in plants and other organisms (2009) (272)
Sexual Selection in Raphanus sativus: Experimental Data on Nonrandom Fertilization, Maternal Choice, and Consequences of Multiple Paternity (1986) (268)
The Genomic Signature of Crop-Wild Introgression in Maize (2012) (268)
Hybridization as an avenue of escape for engineered genes-strategies for risk reduction (1990) (242)
Multiple Paternity within the Fruits of the Wild Radish, Raphanus sativus (1984) (240)
EXPERIMENTAL STUDIES OF THE EVOLUTIONARY SIGNIFICANCE OF SEXUAL REPRODUCTION. I. A TEST OF THE FREQUENCY‐DEPENDENT SELECTION HYPOTHESIS (1984) (217)
When transgenes wander, should we worry? (2001) (213)
Nonlocal transplantation and outbreeding depression in the subshrub Lotus scoparius (Fabaceae). (2001) (210)
Is gene flow the most important evolutionary force in plants? (2014) (205)
Interpopulation Gene Flow by Pollen in Wild Radish, Raphanus sativus (1985) (204)
GENETIC AND ENVIRONMENTAL VARIATION IN FLORAL TRAITS AFFECTING OUTCROSSING RATE IN CLARKIA TEMBLORIENSIS (ONAGRACEAE) (1992) (202)
Crop‐to‐weed gene flow in the genus Sorghum (Poaceae): Spontaneous interspecific hybridization between johnsongrass, Sorghum halepense, and crop sorghum, S. bicolor (1996) (182)
Transplantation of the Subshrub Lotus scoparius: Testing the Home‐Site Advantage Hypothesis (2000) (177)
Introgression of crop alleles into wild or weedy populations (2013) (173)
Gene flow by pollen into small populations: Data from experimental and natural stands of wild radish. (1989) (163)
Crops gone wild: evolution of weeds and invasives from domesticated ancestors (2010) (156)
CONSEQUENCES OF FLORAL VARIATION FOR MALE AND FEMALE REPRODUCTION IN EXPERIMENTAL POPULATIONS OF WILD RADISH, RAPHANUS SATIVUS L (1991) (153)
Male and Female Fertility Variation in Wild Radish, a Hermaphrodite (1990) (152)
Effective Mate Choice in Wild Radish: Evidence for Selective Seed Abortion and Its Mechanism (1988) (148)
PATTERNS OF HYBRIDIZATION AND INTROGRESSION IN POPULATIONS OF OAKS, MANZANITAS, AND IRISES' (1992) (140)
THE DEVELOPMENT AND APPLICATION OF A REFINED METHOD FOR ESTIMATING GENE FLOW FROM ANGIOSPERM PATERNITY ANALYSIS (1990) (138)
Density and the Rate of Apparent Outcrossing in Helianthus annuus (Asteraceae) (1978) (130)
THE EFFECT OF FLOWER PRODUCTION ON MALE REPRODUCTIVE SUCCESS IN WILD RADISH POPULATIONS (1992) (128)
Impact of gene flow from cultivated beet on genetic diversity of wild sea beet populations (1999) (119)
FITNESS OF INTERSPECIFIC HYBRIDS IN THE GENUS SORGHUM: PERSISTENCE OF CROP GENES IN WILD POPULATIONS (1997) (114)
Biological confinement of genetically engineered organisms. (2004) (114)
Proximal Causes of Multiple Paternity in Wild Radish, Raphanus sativus (1985) (113)
Radish as a Model System for the Study of Engineered Gene Escape Rates Via Crop‐Weed Mating (1991) (110)
Gene flow among seed plant populations (1992) (110)
Conservation of genetic diversity in the endangered plant Eriogonum ovalifolium var. vineum (Polygonaceae) (2003) (104)
Population size and relatedness affect fitness of a self-incompatible invasive plant (2007) (103)
Fractional paternity assignment: theoretical development and comparison to other methods (1988) (102)
Clonal diversity in taraxacum officinale (compositae), an apomict (1984) (101)
CROP-WEED HYBRIDIZATION IN RADISH (RAPHANUS SATIVUS): EFFECTS OF DISTANCE AND POPULATION SIZE' (1992) (99)
Engineered Genes in Wild Populations: Fitness of Weed-Crop Hybrids of Raphanus Sativus (1994) (94)
Taxonomy of the Avocado (1986) (90)
EXPERIMENTAL STUDIES OF THE EVOLUTIONARY SIGNIFICANCE OF SEXUAL REPRODUCTION II. A TEST OF THE DENSITY‐DEPENDENT SELECTION HYPOTHESIS (1985) (84)
PATTERNS OF MULTIPLE PATERNITY IN POPULATIONS OF RAPHANUS SATIVUS (1986) (84)
Genetic variation and environmental variation: expectations and experiments (1988) (80)
PROTEIN POLYMORPHISM IN THE NARROW ENDEMIC OENOTHERA ORGANENSIS (1979) (73)
Long-term persistence of crop alleles in weedy populations of wild radish (Raphanus raphanistrum). (2010) (69)
Pollen as a vehicle for the escape of engineered genes? (1988) (68)
LIFETIME ESTIMATES OF BIPARENTAL INBREEDING DEPRESSION IN THE SELF‐INCOMPATIBLE ANNUAL PLANT RAPHANUS SATIVUS (1995) (66)
Spontaneous hybridization between maize and teosinte. (2007) (64)
Genetic evidence for the origin of Californian wild beets (genus Beta) (1999) (63)
The Evolution and Ecology of Permanent Translocation Heterozygotes (1984) (62)
Temporal and spatial variation in heritability and genetic correlations among floral traits in Raphanus sativus, wild radish (1994) (62)
Gene flow among small populations of a self-incompatible plant: an interaction between demography and genetics. (1997) (61)
Impact of population structure on the apparent outcrossing rate of grain sorghum (Sorghum bicolor) (1983) (60)
Estimating the Frequencies of Genetically Distinct Classes of Individuals in Hybridized Populations (1993) (59)
When gene flow really matters: gene flow in applied evolutionary biology (2016) (57)
Rapid evolutionary divergence and ecotypic diversification of germination behavior in weedy rice populations. (2011) (56)
Sequence polymorphisms in wild, weedy, and cultivated rice suggest seed-shattering locus sh4 played a minor role in Asian rice domestication (2012) (56)
Rapid evolution of morphology and adaptive life history in the invasive California wild radish (Raphanus sativus) and the implications for management (2009) (49)
RECOMBINATION SYSTEM AND POPULATION STRUCTURE IN OENOTHERA (1980) (48)
Evolution of enhanced reproduction in the hybrid-derived invasive, California wild radish (Raphanus sativus) (2009) (47)
Got Hybridization? A Multidisciplinary Approach for Informing Science Policy (2010) (47)
Going to “Great Lengths” to Prevent the Escape of Genes That Produce Specialty Chemicals1 (2003) (47)
Patterns of allozyme diversity in the threatened plant Erigeron parishii (Asteraceae). (2001) (46)
Life History Differences between Rare and Common Flowering Plant Species of California and the British Isles (1999) (43)
The impact of domestication on distribution of allozyme variation within and among cultivars of radish,Raphanus sativus L. (1985) (42)
Reproductive Isolation during Domestication[W] (2012) (40)
Fitness correlates of crop transgene flow into weedy populations: a case study of weedy rice in China and other examples (2016) (39)
GENETIC STRUCTURE OF THE AUSTRALIAN CYCAD, MACROZAMIA COMMUNIS (ZAMIACEAE) (1990) (37)
Cultivar identification of cherimoya (Annona cherimola Mill.) using isozyme markers (1987) (36)
BIOSAFETY OF HYBRIDS BETWEEN TRANSGENIC VIRUS‐RESISTANT SUGAR BEET AND SWISS CHARD (2001) (36)
Biochemical and morphological evidence for host race evolution in desert mistletoe,Phoradendron californicum (Viscaceae) (1988) (36)
Variation in outcrossing rate and population genetic structure of Clarkia tembloriensis (Onagraceae) (1989) (35)
Transmission genetics of isozyme loci in Raphanus sativus (Brassicaceae): stress-dependent non-Mendelian segregation (1989) (35)
Genetic Variation in Yellow Nutsedge (Cyperus esculentus) (1987) (34)
Relative fitness of transgenic vs. non-transgenic maize x teosinte hybrids: a field evaluation. (2006) (34)
Floral Formula Inconstancy Within and Among Plants and Populations of Ipomopsis aggregata (Polemoniaceae) (1983) (33)
Regulatory considerations surrounding the deployment Of Bt-expressing cowpea in Africa (2011) (31)
Biofortified sorghum in Africa: using problem formulation to inform risk assessment (2010) (30)
Implications of mating patterns for conservation of the endangered plant Eriogonum ovalifolium var. vineum (Polygonaceae). (2001) (29)
A Pleistocene Clone of Palmer's Oak Persisting in Southern California (2009) (29)
Bidirectional history of hybridization in California wild radish, Raphanus sativus (Brassicaceae), as revealed by chloroplast DNA. (2008) (27)
Evolution of invasiveness in plants following hybridization (2009) (27)
Taxonomic and Life History Bias in Herbicide Resistant Weeds: Implications for Deployment of Resistant Crops (2013) (26)
GENOTYPIC DIVERSITY IN OENOTHERA LACINIATA (ONAGRACEAE), A PERMANENT TRANSLOCATION HETEROZYGOTE (1982) (25)
Harvesting Data from Genetically Engineered Crops (2008) (25)
Correction: The Genomic Signature of Crop-Wild Introgression in Maize (2013) (23)
Characterization of weed beet in Germany and Italy (2000) (23)
Transgene introgression from genetically modified crops to their wild relatives (2003) (22)
Inheritance and linkage of isozymes in the cherimoya (1987) (22)
Ecological isolation and introgression: Biochemical confirmation of introgression in an Arctostaphylos (Ericaceae) population (1987) (22)
The effect of planting design on out-crossing rate and yield in the ‘Hass’ avocado (1985) (22)
Rapid Phenotypic Divergence of Feral Rye from Domesticated Cereal Rye (2007) (20)
Over a Decade of Crop Transgenes Out-of-Place (2012) (19)
Maize Germplasm Conservation in Southern California’s Urban Gardens: Introduced Diversity Beyond ex situ and in situ Management (2016) (19)
The Inflorescence as a Metapopulation of Flowers: Position-Dependent Differences in Function and Form in the Cleistogamous Species Collomia grandiflora Dougl. Ex Lindl. (Polemoniaceae) (1984) (18)
Multiple paternity in common bean (Phaseolus vulgaris L., Fabaceae) (1996) (18)
“Born to Run”? Not Necessarily: Species and Trait Bias in Persistent Free-Living Transgenic Plants (2018) (17)
Isozymes Confirm Hybrid Parentage for 'G755' Selections (1986) (17)
Risk assessment of gene flow from genetically engineered virus resistant cassava to wild relatives in Africa: an expert panel report (2016) (15)
Novel seed protection in the recently evolved invasive, California wild radish, a hybrid Raphanus sp. (Brassicaceae). (2014) (14)
Rapid range expansion of a newly formed allopolyploid weed in the genus Salsola. (2016) (14)
Regulation of Mate Number in Fruits of Wild Radish (1989) (14)
Spatial and Temporal Patterns of Floral Inconstancy in Plants and Populations of Ipomopsis aggregata (Polemoniaceae) (1988) (13)
Stylar polymorphism in epigaea repens a dioecious species (1981) (13)
The Fitness of Dispersed Progeny: Experimental Studies with Anthoxanthum odoratum (1985) (12)
World food security and the tribe Triticeae (Poaceae): Genetic resources of cultivated, wild, and weedy taxa for crop improvement (2014) (12)
When crop transgenes wander in California, should we worry? (2006) (11)
More than multiple introductions: Multiple taxa contribute to the genesis of the invasive California's wild artichoke thistle (2013) (11)
Genetic Engineering and Pollen Flow (2006) (10)
Genotypic Diversity of Kikuyugrass (Pennisetum clandestinum) Populations in California (1995) (10)
Evolution of Oenothera laciniata (Onagraceae), a Permanent Translocation Heterozygote (1980) (10)
Patterns of genetic diversity in sympatric and allopatric populations of maize and its wild relative teosinte in Mexico: evidence for hybridization. (2002) (9)
Feral rye - evolutionary origins of a weed. (2005) (9)
Gene flow from transgenic crops to wild relatives: what have we learned, what do we know, what do we need to know? (2002) (9)
Association of alleles with chromosomal complexes in the permanent translocation heterozygote, Oenothera laciniata (1980) (9)
Genetic structure reveals a history of multiple independent origins followed by admixture in the allopolyploid weed Salsola ryanii (2016) (9)
Pollen as a vehicle for the escape of engineered genes (1988) (9)
Alcohol dehydrogenase isozymes in grain sorghum (Sorghum bicolor): Evidence for a gene duplication (1983) (9)
Chapter 19 – Gene Flow and Introgression from Domesticated Plants into their Wild Relatives* (2002) (8)
The Integration of Science and Policy in Regulatory Decision-Making: Observations on Scientific Expert Panels Deliberating GM Crops in Centers of Diversity (2018) (8)
Transgene Escape Monitoring, Population Genetics, and the Law (2008) (8)
Transgene movement via gene flow: recommendations for improved biosafety assessment (1999) (7)
Independent Assortment of Four Isozyme Loci in the 'Bacon' Avocado (Persea americana Mill.) (1984) (7)
Maize x Teosinte Hybrid Cobs Do Not Prevent Crop Gene Introgression (2012) (7)
Origin of wild beet and gene flow between Beta vulgaris and B. macrocarpa in California (1999) (6)
Does introgression of crop alleles into wild and weedy living populations create cryptic in situ germplasm banks? (2018) (5)
Two Food Waste By-Products Selectively Stimulate Beneficial Resident Citrus Host-Associated Microbes in a Zero-Runoff Indoor Plant Production System (2020) (5)
Big Baby, Little Mother: Tsetse Flies Are Exceptions to the Juvenile Small Size Principle (2020) (5)
The Elephant that is Biotechnology: Comments on "Genetically Modified Crops: Risks and Promise" by Gordon Conway (2000) (5)
Introduction to “Ecological and Evolutionary Consequences after Invaders Hybridize” (2009) (4)
Evolution of increased vigour associated with allopolyploidization in the newly formed invasive species Salsola ryanii (2019) (3)
SELF-INCOMPATIBLE PLANT: AN INTERACTION BETWEEN DEMOGRAPHY AND GENETICS1 (1997) (3)
Interpretation of triose phosphate isomerase isozymes in the cherimoya (Annona cherimola Mill.) (1988) (2)
Plant Population Ecology (1983) (2)
Sex on the Kitchen Table: The Romance of Plants and Your Food (2018) (2)
’ s Choice When Transgenes Wander , Should We Worry ? (2001) (2)
Benefits and Risks of Food Biotechnology (2002) (2)
SPATIOTEMPORAL PATTERNS IN THE NON-NATIVE FLORA OF CALIFORNIA, USA1 (2007) (2)
Scientists evaluate potential environmental risks of transgenic crops (2006) (2)
ESTIMATING GENE FLOW FROM ANGIOSPERM PATERNITY ANALYSIS (1990) (1)
SUCCESS IN WILD RADISH POPULATIONS (1992) (1)
ANNUAL PLANT RAPHANUS SATIVUS (1995) (1)
Gene flow and hybrid fitness in the Sorghum bicolor-Sorghum halepense complex. (2002) (1)
A Genetic Basis for Avocado Decline in The Rancho California Area of California (1992) (1)
UNIVERSITY OF CALIFORNIA RIVERSIDE Cross-Compatibility, Graft-Compatibility, and Phylogenetic Relationships in the Aurantioideae: New Data From the Balsamocitrinae A Thesis submitted in partial satisfaction of the requirements for the degree of Master of Science in Plant Biology by (2016) (0)
Maize x Teosinte Hybrid Cobs Do Not Prevent Crop Gene Introgression (2012) (0)
STRUCTURE IN OENOTHERA (1980) (0)
Special Issue: Gene flow and applied evolutionary biology. (2016) (0)
Bidirectional history of hybridization in California wild radish, Raphanus sativus , as revealed by chloroplast DNA (2008) (0)
16. Crop Transgenes in Natural Populations (2009) (0)
Maize Germplasm Conservation in Southern California’s Urban Gardens: Introduced Diversity Beyond ex situ and in situ Management (2016) (0)
UNIVERSITY OF CALIFORNIA RIVERSIDE Cross-Compatibility, Graft-Compatibility, and Phylogenetic Relationships in the Aurantioideae: New Data From the Balsamocitrinae A Thesis submitted in partial satisfaction of the requirements for the degree of Master of Science in Plant Biology by (2016) (0)
Risk assessment of gene flow from genetically engineered virus resistant cassava to wild relatives in Africa: an expert panel report (2015) (0)
It Has Been Said (2015) (0)
California Avocado Society 1986 Yearbook 70 : 135-146 Taxonomy of the Avocado (2004) (0)
The evolution of crops that do not need us anymore. (2019) (0)
ENDEMIC OENOTHERA ORGANENSIS (1979) (0)
THE FREQUENCY-DEPENDENT SELECTION HYPOTHESIS (1984) (0)
NATURAL OUTCROSSING RATES (1990) (0)
Evolutionary Pollination Ecology (1985) (0)

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