• Variation and Evolution in Plants is a book written by G. Ledyard Stebbins, published in 1950. It is one of the key publications embodying the modern synthesis...
    4 KB (473 words) - 18:22, 12 October 2021
  • G. Ledyard Stebbins (category Botanists active in California)
    synthesis of plant evolution incorporating genetics. His most important publication was Variation and Evolution in Plants, which combined genetics and Darwin's...
    38 KB (4,348 words) - 09:16, 7 April 2024
  • Thumbnail for Plant evolution
    Plant evolution is the subset of evolutionary phenomena that concern plants. Evolutionary phenomena are characteristics of populations that are described...
    16 KB (1,784 words) - 09:44, 9 April 2024
  • plants and pollinating insects. In mimicry, species evolve to resemble other species; in Müllerian mimicry this is a mutually beneficial co-evolution...
    72 KB (8,073 words) - 01:28, 29 April 2024
  • Thumbnail for History of evolutionary thought
    did not hold up to closer examination. In 1950, G. Ledyard Stebbins published Variation and Evolution in Plants, which helped to integrate botany into...
    141 KB (16,362 words) - 18:46, 26 April 2024
  • Thumbnail for Modern synthesis (20th century)
    hybridization and polyploidy in plants in his 1950 book Variation and Evolution in Plants. These permitted evolution to proceed rapidly at times, polyploidy in particular...
    74 KB (7,655 words) - 13:50, 18 January 2024
  • Thumbnail for Outline of evolution
    following outline is provided as an overview of and topical guide to evolution: In biology, evolution is change in the heritable characteristics of biological...
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  • Thumbnail for Polymorphism (biology)
    E. 1963. Animal Species and Evolution. Boston: Harvard U. Pr. Stebbins, G. Ledyard 1950. Variation and Evolution in Plants. New York: Columbia U. Pr...
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  • Thumbnail for Karyotype
     35 Stebbins, G.L. (1950). "Chapter XII: The Karyotype". Variation and evolution in plants. Columbia University Press. ISBN 9780231017336. "Karyosystematics"...
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  • Thumbnail for Evolution
    evolutionary processes such as natural selection and genetic drift act on genetic variation, resulting in certain characteristics becoming more or less common...
    238 KB (24,700 words) - 04:40, 1 April 2024
  • Thumbnail for Polyploidy
    Polyploidy (section Plants)
    (1950). Variation and Evolution in Plants. Oxford University Press.[page needed] Ramsey J, Schemske DW (January 1998). "Pathways, Mechanisms, and Rates...
    81 KB (8,801 words) - 19:19, 19 April 2024
  • Thumbnail for Natural selection
    differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits...
    108 KB (11,688 words) - 02:53, 28 April 2024
  • Thumbnail for Evolutionary history of plants
    The evolution of plants has resulted in a wide range of complexity, from the earliest algal mats of unicellular archaeplastids evolved through endosymbiosis...
    135 KB (16,791 words) - 13:45, 25 April 2024
  • Thumbnail for Genetic variation
    enzymes in insects and plants may be polymorphic, whereas polymorphisms are less common among vertebrates.[citation needed] Ultimately, genetic variation is...
    29 KB (3,555 words) - 11:20, 3 December 2023
  • Thumbnail for List of organisms by chromosome count
    p. 28. Stebbins GL (1950). "Chapter XII: The Karyotype". Variation and evolution in plants. Columbia University Press. King RC, Stansfield WD, Mulligan...
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  • Thumbnail for Convergent evolution
    from multiple types of tree frog. Many instances of convergent evolution are known in plants, including the repeated development of C4 photosynthesis, seed...
    56 KB (5,672 words) - 11:21, 19 April 2024
  • Thumbnail for Plant morphology
    form and external structure of plants. This is usually considered distinct from plant anatomy, which is the study of the internal structure of plants, especially...
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  • animals, plants are immobile, and cannot seek out sexual partners for reproduction. In the evolution of early plants, abiotic means, including water and much...
    25 KB (3,263 words) - 13:37, 30 March 2024
  • Thumbnail for Andrea Cesalpino
    Andrea Cesalpino (category 16th-century writers in Latin)
    philosopher and botanist. In his works he classified plants according to their fruits and seeds, rather than alphabetically or by medicinal properties. In 1555...
    13 KB (1,538 words) - 00:09, 26 April 2024
  • Thumbnail for History of speciation
    extended to plants as well as animals with G. Ledyard Stebbins’s book, Variation and Evolution in Plants and the much later, 1981 book, Plant Speciation...
    45 KB (5,398 words) - 05:18, 22 February 2024
  • Thumbnail for Divergent evolution
    evolution is typically exhibited when two populations become separated by a geographic barrier (such as in allopatric or peripatric speciation) and experience...
    15 KB (1,627 words) - 00:17, 24 April 2024
  • Thumbnail for The Variation of Animals and Plants Under Domestication
    The Variation of Animals and Plants Under Domestication is a book by Charles Darwin that was first published in January 1868. A large proportion of the...
    31 KB (3,045 words) - 17:30, 6 April 2024
  • Thumbnail for Theistic evolution
    Publications. p. 43 As quoted from Ramsbottom, (1938); in David Briggs (1997), "Plant Variation and Evolution", p. 16 "Rocky Road: Thomas Hawkins". www.strangescience...
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  • Thumbnail for Introduction to evolution
    In biology, evolution is the process of change in all forms of life over generations, and evolutionary biology is the study of how evolution occurs. Biological...
    80 KB (9,137 words) - 00:59, 21 March 2024
  • Thumbnail for Galax
    Galax (redirect from Wand plant)
    plant in gardens. The independent city of Galax, Virginia, is named after this plant. Stebbins, G. Ledyard (1950-12-31). Variation and Evolution in Plants...
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  • Thumbnail for Caytoniales
    Caytoniales (category Triassic plants)
    Francisco J.; Fitch, Walter M.; Clegg, Michael T. (eds.). Variation and Evolution in Plants and Microorganisms: Toward a New Synthesis 50 Years after Stebbins...
    10 KB (1,142 words) - 07:04, 25 April 2024
  • Thumbnail for Mutationism
    opponents of Darwinian evolution and rivals of the biometrics school who argued that selection operated on continuous variation. In this portrayal, mutationism...
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  • Thumbnail for Cloning
    by plants, fungi, and bacteria, and is also the way that clonal colonies reproduce themselves. Examples of these organisms include blueberry plants, Hazel...
    106 KB (11,415 words) - 19:48, 27 April 2024
  • Thumbnail for Sex
    Sex (redirect from Sex in plants)
    embryonic plant. The flowers of flowering plants contain their sexual organs. Most flowering plants are hermaphroditic, with both male and female parts in the...
    63 KB (7,033 words) - 04:32, 27 April 2024
  • Thumbnail for Evolution of sexual reproduction
    Unsolved problem in biology: What selection pressures led to the evolution and maintenance of sexual reproduction? (more unsolved problems in biology) Sexual...
    80 KB (9,740 words) - 04:10, 22 April 2024