Michael T. Clegg | Academic Influence

Michael T. Clegg's AcademicInfluence.com Rankings

Michael T. Clegg

Biology

#5165

World Rank

#7583

Historical Rank

#1829

USA Rank

Genetics

#882

World Rank

#977

Historical Rank

#253

USA Rank

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Biology

Michael T. Clegg's Degrees

PhD Genetics University of California, Davis
Bachelors Biology University of California, Davis

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Why Is Michael T. Clegg Influential?

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According to Wikipedia, Michael Tran Clegg is an American plant geneticist. He is professor emeritus of ecology and evolutionary biology in the School of Biological Sciences at the University of California, Irvine . Early life and education Clegg was born on August 1, 1941, in Pasadena, California. His father and grandfather were biologists, and his great-grandfather was a doctor. Despite his family's scientific background, Clegg originally worked for a crop duster, served in the 101st Airborne Division of the US Army from 1960 to 63 and later worked in the sugar industry, before entering college. He obtained his Ph.D. from the University of California, Davis in 1972.

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Michael T. Clegg'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

Allozyme diversity in plant species. (1990) (3035)
Plant Population Genetics, Breeding, and Genetic Resources (1989) (1308)
Substitution rate comparisons between grasses and palms: synonymous rate differences at the nuclear gene Adh parallel rate differences at the plastid gene rbcL. (1996) (657)
Rates and patterns of chloroplast DNA evolution. (1994) (385)
Chloroplast DNA sequence from a Miocene Magnolia species (1990) (342)
Genetic evidence for a second domestication of barley (Hordeum vulgare) east of the Fertile Crescent (2007) (314)
Measuring Plant Mating Systems (1980) (259)
The Nature of Nucleotide Sequence Divergence between Barley and Maize Chloroplast DNA. (1984) (241)
Patterns of Genetic Differentiation in the Slender Wild Oat Species Avena barbata. (1972) (221)
Evolution of a noncoding region of the chloroplast genome. (1993) (219)
Evidence for coadaptation in Avena barbata. (1972) (212)
Low levels of linkage disequilibrium in wild barley (Hordeum vulgare ssp. spontaneum) despite high rates of self-fertilization. (2005) (197)
Genome comparisons reveal a dominant mechanism of chromosome number reduction in grasses and accelerated genome evolution in Triticeae (2009) (190)
Estimation of life cycle components of selection in an experimental plant population. (1978) (190)
Regions of stable equilibria for models of differential selection in the two sexes under random mating. (1977) (189)
Relative rates of nucleotide substitution at the rbcl locus of monocotyledonous plants (1992) (187)
Nucleotide diversity maps reveal variation in diversity among wheat genomes and chromosomes (2010) (183)
Genetic characterization of plant mating systems. (1990) (181)
Effect of population substructuring on estimates of outcrossing rate in plant populations (1982) (176)
Molecular evolution of the chalcone synthase multigene family in the morning glory genome (2004) (173)
Chloroplast DNA and the Study of Plant Phylogeny: Present Status and Future Prospects (1992) (170)
EVOLUTIONARY ANALYSIS OF THE LARGE SUBUNIT OF CARBOXYLASE (rbcL) NUCLEOTIDE SEQUENCE AMONG THE GRASSES (GRAMINEAE) (1990) (166)
INFLUENCE OF FLOWER COLOR POLYMORPHISM ON GENETIC TRANSMISSION IN A NATURAL POPULATION OF THE COMMON MORNING GLORY, IPOMOEA PURPUREA (1984) (161)
Chloroplast gene sequences and the study of plant evolution. (1993) (160)
Molecular evolution of chloroplast DNA sequences. (1984) (156)
Is the gene the unit of selection? Evidence from two experimental plant populations. (1972) (154)
Tracing the geographic origins of major avocado cultivars. (2008) (149)
The evolution of plant nuclear genes. (1997) (148)
Spatial patterns of genetic variation within plant populations. (1990) (144)
Flower color variation: a model for the experimental study of evolution. (2000) (143)
Chloroplast DNA evolves slowly in the palm family (Arecaceae). (1990) (140)
Evolutionary Dynamics of the DNA-Binding Domains in Putative R2R3-MYB Genes Identified from Rice Subspecies indica and japonica Genomes1[w] (2004) (129)
Genetic diversity of seed storage proteins in plants. (1990) (121)
Population genetics in forest tree improvement. (1990) (115)
Barley landraces are characterized by geographically heterogeneous genomic origins (2015) (113)
Evolutionary Analysis of Plant DNA Sequences (1987) (109)
Spatial-Autocorrelation Analysis of Flower Color Polymorphisms within Substructured Populations of Morning Glory (Ipomoea purpurea) (1986) (107)
Evolution of the chalcone synthase gene family in the genus Ipomoea. (1995) (107)
Molecular evolution of the Adh1 locus in the genus Zea. (1993) (105)
Chloroplast DNA variation in pearl millet and related species. (1984) (102)
Distinct geographic patterns of genetic diversity are maintained in wild barley (Hordeum vulgare ssp. spontaneum) despite migration (2003) (101)
Chloroplast DNA diversity in wild and cultivated barley: implications for genetic conservation (1984) (100)
rbcL sequence divergence and phylogenetic relationships in Saxifragaceae sensu lato. (1990) (99)
Molecular diversity in plant populations. (1990) (97)
THE INFLUENCE OF FLOWER COLOR ON OUTCROSSING RATE AND MALE REPRODUCTIVE SUCCESS IN IPOMOEA PURPUREA (1985) (96)
A chloroplast DNA mutational hotspot and gene conversion in a noncoding region near rbcL in the grass family (Poaceae) (1993) (93)
MULTIGENIC RESPONSE TO ETHANOL IN DROSOPHILA MELANOGASTER (1981) (92)
Viability versus Fecundity Selection in the Slender Wild Oat, Avena barbata L (1973) (91)
Dynamics of correlated genetic systems. IV. Multilocus effects of ethanol stress environments. (1978) (85)
FREQUENCY‐DEPENDENT VARIATION FOR OUTCROSSING RATE AMONG FLOWER‐COLOR MORPHS OF IPOMOEA PURPUREA (1987) (84)
Estimation of mating system parameters when outcrossing events are correlated. (1984) (83)
Evidence for biochemical and physiological differences between enzyme genotypes in Drosophila melanogaster. (1981) (82)
Evolution of the Avocados as Revealed by DNA Restriction Fragment Variation (1990) (82)
Genes that determine flower color: the role of regulatory changes in the evolution of phenotypic adaptations. (2003) (81)
Molecular evolution of alcohol dehydrogenase 1 in members of the grass family. (1991) (80)
Tracing floral adaptations from ecology to molecules (2003) (80)
Nucleotide sequence diversity at the alcohol dehydrogenase 1 locus in wild barley (Hordeum vulgare ssp. spontaneum): an evaluation of the background selection hypothesis. (1998) (78)
Phylogenetic analysis of rbcL sequences identifies Acorus calamus as the primal extant monocotyledon. (1993) (74)
The Influence of Specific Neighboring Bases on Substitution Bias in Noncoding Regions of the Plant Chloroplast Genome (1997) (71)
Nucleotide polymorphism in the Adh1 locus of pearl millet (Pennisetum glaucum) (Poaceae). (1993) (69)
First-pollination primacy and pollen selection in the morning glory, Ipomoea purpurea (1987) (69)
Relative rates of nucleotide substitution in the chloroplast genome. (1993) (68)
Ecological genetics and air pollution (1991) (67)
Evolution of alcohol dehydrogenase genes in the palm and grass families. (1996) (67)
Flower color variation in the morning glory, Ipomoea purpurea (1983) (67)
Evolutionary Changes in the Mating System of an Experimental Population of Barley (Hordeum vulgare L.). (1975) (66)
Evolutionary Relationships of the Caryophyllidae Based on Comparative rbcL Sequences (1992) (66)
Patterns of genetic diversification within the Adh gene family in the grasses (Poaceae). (1999) (66)
The barley chloroplast DNA atpBE, trnM2, and trnV1 loci. (1984) (64)
Heterogeneous geographic patterns of nucleotide sequence diversity between two alcohol dehydrogenase genes in wild barley (Hordeum vulgare subspecies spontaneum). (2001) (61)
Neighboring base composition is strongly correlated with base substitution bias in a region of the chloroplast genome (1995) (60)
Crop genetic resources: current and emerging issues. (1990) (60)
Genetic Diversity in Pearl Millet (Pennisetum glaucum [L.] R. Br.) at the DNA Sequence Level (1989) (58)
Persea americana (avocado): bringing ancient flowers to fruit in the genomics era. (2008) (57)
Nucleotide diversity and linkage disequilibrium in wild avocado (Persea americana Mill.). (2008) (53)
Microsatellite markers in avocado (Persea americana Mill.): development of dinucleotide and trinucleotide markers (2004) (52)
Estimation of Mating Cycle Components of Selection in Plants (1977) (50)
Estimating the Contribution of Mutation, Recombination and Gene Conversion in the Generation of Haplotypic Diversity (2006) (49)
The influence of linkage and inbreeding on patterns of nucleotide sequence diversity at duplicate alcohol dehydrogenase loci in wild barley (Hordeum vulgare ssp. spontaneum). (2002) (44)
Probabilistic Analysis Indicates Discordant Gene Trees in Chloroplast Evolution (2003) (39)
Resequencing data indicate a modest effect of domestication on diversity in barley: a cultigen with multiple origins. (2014) (39)
Phylogenetic relationships of the Bromeliiflorae-Commeliniflorae-Zingiberiflorae complex of monocots based on rbcL sequence comparisons (1993) (38)
Sampling properties of gene diversity. (1990) (37)
Instability at a flower color locus in the morning glory (1987) (36)
Two Genomic Regions Contribute Disproportionately to Geographic Differentiation in Wild Barley (2014) (35)
Genetics of Flower Color Polymorphism in the Common Morning Glory (Ipomoea purpurea) (1988) (34)
Monte carlo studies of plant mating system estimation models: the one-pollen parent and mixed mating models. (1986) (32)
Constraints on the evolution of plastid introns: the group II intron in the gene encoding tRNA-Val(UAC). (1992) (32)
Stem color and pleiotropy of genes determining flower color in the common morning glory (1984) (32)
Dynamics of correlated genetic systems. I. Selection in the region of the Glued locus of Drosophila melanogaster. (1976) (31)
Dynamics of Correlated Genetic Systems. V. Rates of Decay of Linkage Disequilibria in Experimental Populations of DROSOPHILA MELANOGASTER. (1980) (30)
Evolution of multigene families: the ribosomal RNA loci of wheat and related species. (1990) (29)
Temporal Stability of Allozyme Frequencies in a Natural Population of DROSOPHILA MELANOGASTER. (1981) (29)
Dynamics of the Linkage Disequilibrium Function under Models of Gene-Frequency Hitchhiking. (1981) (28)
Variation and evolution in plants and microorganisms: toward a new synthesis 50 years after Stebbins. (2000) (28)
Dynamics of correlated genetic systems. VI. Variation in recombination rates in experimental populations of Drosophila melanogaster. (1979) (27)
Avocado cellulase: nucleotide sequence of a putative full-length cDNA clone and evidence for a small gene family (1987) (26)
Gene identity and the genetic demography of plant populations. (1990) (25)
The Genetics of Electrophoretic Variants in AvenaII. The esterase E1, E2, E4E5, E6 and anodal peroxidase APX4 loci in A. fatua (1973) (25)
Excess non-synonymous substitutions suggest that positive selection episodes occurred during the evolution of DNA-binding domains in the Arabidopsis R2R3-MYB gene family (2003) (24)
Recent Developments in Population Genetics (1985) (23)
Detection and measurement of selection: genetic and ecological approaches. (1990) (21)
The interaction between selection and linkage in plant populations. (1990) (21)
Natural selection of flower color polymorphisms in morning glory populations (1988) (20)
Unstable White Flower Color Genes and Their Derivatives in Morning Glory (1992) (20)
ISOZYMES IN PLANT POPULATION GENETICS (1975) (20)
Screening and Evaluation of New Rootstocks with Resistance to Phytophthora cinnamomi (2005) (20)
Dynamics of correlated genetic systems. II. Simulation studies of chromosomal segments under selection. (1978) (20)
Genetic Demography of Plant Populations (1978) (19)
Isozyme assessment of plant genetic resources. (1983) (19)
Dynamics of mobile element activity in chalcone synthase loci in the common morning glory (Ipomoea purpurea) (2001) (19)
Molecular markers in the manipulation of quantitative characters. (1990) (19)
Molecular evolution of the Ac/Ds transposable-element family in pearl millet and other grasses. (1995) (18)
Comparative genomics of chalcone synthase and Myb genes in the grass family. (2000) (18)
Genetic Diversity in the Common Morning Glory (1996) (17)
The Impact of Outcrossing on Yields of 'Hass' Avocado (2008) (17)
Molecular variation in the Dutch elm disease fungus. (1990) (17)
Quantitative Genetic Analysis of Growth Rate in Avocado (2007) (17)
Exploring genetic variation, oil and α-tocopherol content in avocado (Persea americana) from northwestern Mexico (2017) (15)
A restriction map of the ribosomal RNA genes and the short single-copy DNA sequence of the pearl millet chloroplast genome. (1981) (15)
Quantitative Genetic Analysis of Three Important Nutritive Traits in the Fruit of Avocado (2013) (15)
PROCESSES OF CHLOROPLAST DNA EVOLUTION (1986) (15)
Dating the monocot-dicot divergence (1990) (15)
Extensive evolutionary rate variation in floral color determining genes in the genus Ipomoea (2010) (15)
Disease in mixed cultivars, composites, and natural plant populations: some epidemiological and evolutionary consequences. (1990) (14)
The systematic status of the Agavaceae and Nolinaceae and related Asparagales in the Monocotyledons: An analysis based on the rbcL gene sequence (1994) (14)
Inferring plant evolutionary history from molecular data (1993) (14)
Genetic Diversity and Reproductive System (1992) (13)
Rates of decay of linkage disequilibrium under two-locus models of selection (1982) (13)
SPATIAL-AUTOCORRELATION ANALYSIS OF FLOWER COLOR (1986) (13)
Error detection in SNP data by considering the likelihood of recombinational history implied by three-site combinations (2007) (12)
U.S.-Cuban Scientific Relations (2008) (11)
Limits to knowledge in evolutionary genetics (2000) (11)
The Ds1 controlling element family in maize andTripsacum (2005) (11)
Detection and Measurement of Natural Selection (1983) (10)
The use of molecular markers in the management and improvement of avocado (Persea americana Mill.) (1999) (10)
Dynamics of Correlated Genetic Systems. VII. Demographic Aspects of Sex-Linked Transmission (1982) (10)
Tracing the geographic origins of weedy Ipomoea purpurea in the southeastern United States. (2013) (10)
MALE REPRODUCTIVE SUCCESS IN IPOMOEA PURPUREA (1985) (9)
Molecular Evaluation of Plant Genetic Resources (1993) (9)
Use of restriction fragment length polymorphisms for genetic counseling: population genetic considerations. (1982) (8)
DNA polymorphism and adaptive evolution. (1990) (6)
Molecular evolutionary characterization of an Activator (Ac)-like transposable element sequence from pearl millet (Pennisetum glaucum) (Poaceae) (2004) (6)
Nucleotide sequence diversity of floral pigment genes in Mexican populations of Ipomoea purpurea (morning glory) accord with a neutral model of evolution. (2012) (5)
Purification of total cellular DNA from a single plant (1982) (5)
Genetics of Crop Improvement (1986) (4)
An Emergent Field (1991) (4)
Utilization of genetic resources for crop improvement: the common bean. (1990) (4)
Molecular evolution: molecular evolutionary genetics. (1987) (4)
Presence of an Activator (Ac)-like sequence in Pennisetum glaucum (pearl millet) (1990) (3)
Book Review:Philopatry, Inbreeding, and the Evolution of Sex. William M. Shields (1983) (3)
Plant quantitative genetics. (1990) (3)
Multiallelic restriction fragment polymorphisms in genetic counseling: population genetic considerations. (1985) (3)
Allele‐specific PCR can improve the efficiency of experimental resolution of heterozygotes in resequencing studies (2009) (3)
Assessing the Genetic Determination of Valuable Avocado Traits Using Microsatellite (SSR) Markers and Quantitative Trait Locus (QTL) Analysis (2007) (3)
OUTCROSSING IN AVOCADO: IS THERE A RELATIONSHIP TO FRUIT YIELD? (1996) (2)
Dietary Vanadium, P-ATPase-7A Expression and the Influence on Lysyl Oxidase and Cu Accumulation in Rat Skin and Liver (2002) (2)
The genetics of glutamate oxaloacetate transaminase in Drosophila melanogaster. (1976) (2)
Limits to Knowledge in Population Genetics (2000) (2)
Dynamics of correlated genetic systems III. Behaviour of chromosomal segments under lethal selection (1978) (2)
Persea (2022) (2)
Millions of generations old: Once lost, diversity of gene pools cannot be restored (1995) (2)
Chloroplast DNA Evolves Slowly in the (1990) (2)
Molecular Evolution: The Coming of Age@@@Evolution of Genes and Proteins. (1984) (1)
Evolutionary Changes in the Mating Syste (2016) (1)
A gene for tRNA-Ile(CAU) from chloroplasts of a monocot, Pennisetum americanum. (1988) (1)
Adapting to the future: the role of science academies in capacity building (2009) (1)
MOLECULAR EVOLUTION: THE COMING OF AGE. (1984) (1)
Genetics society of america program and abstracts. (1989) (1)
Quantitative changes in maize loci induced by transposable elements. (1990) (1)
Two locus models of selection and mutation within and among full-sib lines (1979) (1)
Genomes and evolution. (2005) (1)
Application of Molecular Markers to Avocado Improvement (2004) (1)
Purifying selection and gene conversion in polyploid wheat evolution (2008) (1)
In a Time of Tension, Scientists Build Hopeful U.S.-Iran Links (2007) (1)
The Role of Recombination in Plant Genome Evolution (1999) (1)
Barbara Kuhn: 42 years of service to the American Genetic Association and to the Journal of Heredity (1987) (0)
Quantitative Trait Locus Analysis in Avocado: The Challenge of a Slow-maturing Horticultural Tree Crop (2019) (0)
Interfamilial relationships of the Orchidaceae and other lilioid monocots: evidence from phylogenetic analysis of sequence variation of the chloroplast gene rbcL (1991) (0)
ANNOUNCEMENT OF THE THEODOSIUS DOBZHANSKY PRIZE (1980) (0)
Molecular Evolution of Chloroplast DNA Sequences 1 (1998) (0)
ANNOUNCEMENT OF THE THEODOSIUS DOBZHANSKY PRIZE (1981) (0)
REVIEWERS OF MANUSCRIPTS, 1978 (1978) (0)
An Emergent Field: Fundamentals of Molecular Evolution . Wen-Hsiung Li and Dan Graur. Sinauer, Sunderland, MA, 1991. xviii, 284 pp., illus. Paper, $22.95. (1991) (0)
Title Exploring genetic variation , oil and alpha-tocopherol content in avocado ( Persea americana ) from northwestern Mexico Permalink (2017) (0)
Oxford University Press will publish The Journal of Heredity effective January 1988 (1987) (0)
Exploring genetic variation, oil and α-tocopherol content in avocado (Persea americana) from northwestern Mexico (2017) (0)
The systematic status of the agavaceae and nolinaceae and related. An analysis based on the RBCL gene sequence (1994) (0)
Barley landraces are characterized by geographically heterogeneous genomic origins (2015) (0)
Ratesandpatterns ofchloroplast DNA evolution (1994) (0)
AVOCADO GERMPLASM PRESERVATION AND BREEDING PROGRAM IN CALIFORNIA (2005) (0)
Bridging the gulf (2016) (0)
The choice between cell proliferation or apoptosis in HL60 cells as regulated by extra/ intracellular Zn concentrations (1997) (0)
Chloroplast gene sequencesandthestudy ofplant evolution (1993) (0)
Plant Population Genetics as a Research Tool@@@Plant Population Genetics, Breeding, and Genetic Resources. (1991) (0)
The 1957 Rehang of Tate’s Modern British Gallery: Displaying the Contemporary ‘British School’ in the Context of John Rothenstein’s Later Career (2018) (0)
Phylogenetic analysis of Adh sequences from Poaceae (1996) (0)
Title Two genomic regions contribute disproportionately to geographic differentiation in wild barley Permalink (2014) (0)
Cloning and characterization of the chloroplast ribosomal RNA genes from pearl millet. (1980) (0)
Books received (2005) (0)
Application of Molecular Markers for Avocado Improvement Continuing Project ; Year 3 of 5 (2001) (0)
Molecular evolution : proceedings of a UCLA colloquium held at Lake Tahoe, California, February 27-March 6, 1989 (1990) (0)
Dedication: Robert W. Allard, Population Geneticist and Agronomist (2010) (0)
Referees for Volume 39 (2004) (0)
What can genetics tell us about plant domestication (2007) (0)
Dietary Copper, Vanadate, Lysyl Oxidase Activity, and Lysine Tyrosyl Quinone Formation (2002) (0)
Once lost, diversity of gene pools connot be restored (1995) (0)
Population Genetics (2020) (0)

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