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Dorothea De Winton
Dorothea De Winton (1891–1982) was a plant scientist and one of the first female geneticists. She worked at the John Innes Horticultural Institution (now the John Innes Centre) for over 20 years. Life De Winton worked as a professional gardener from 1916 until 1919, before approaching William Bateson with an interest in studying plants in a more scientific manner. She thus became one of the 'Bateson Ladies' at the John Innes Horticultural Institution in 1920, joining Caroline Pellew, Dorothy Cayley, Alice Gairdner, Aslaug Sverdrup and Irma Andersson in the so-called 'Ladies Lab'. From 1920 until 1926, De Winton worked with Bateson on Chinese primrose (''Primula sinensis''), continuing the work of Reginald Gregory. During this time period, in 1923, she co-authored 'Genetics of ''Primula sinensis''', describing linkage studies for numerous traits in ''Primula sinensis''. While in the 'Ladies Lab', De Winton also worked on genetic linkage in Pisum with Caroline Pellew, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Botany
Botany, also called plant science (or plant sciences), plant biology or phytology, is the science of plant life and a branch of biology. A botanist, plant scientist or phytologist is a scientist who specialises in this field. The term "botany" comes from the Ancient Greek word (') meaning " pasture", "herbs" " grass", or "fodder"; is in turn derived from (), "to feed" or "to graze". Traditionally, botany has also included the study of fungi and algae by mycologists and phycologists respectively, with the study of these three groups of organisms remaining within the sphere of interest of the International Botanical Congress. Nowadays, botanists (in the strict sense) study approximately 410,000 species of land plants of which some 391,000 species are vascular plants (including approximately 369,000 species of flowering plants), and approximately 20,000 are bryophytes. Botany originated in prehistory as herbalism with the efforts of early humans to identify – a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pisum
''Pisum'' is a genus of flowering plants in the family Fabaceae, native to southwest Asia and northeast Africa. It contains one to five species, depending on taxonomic interpretation; the International Legume Database (ILDIS) accepts three species, one with two subspecies: *'' Pisum abyssinicum'' (syn. ''P. sativum'' subsp. ''abyssinicum'') *'' Pisum fulvum'' *''Pisum sativum'' - pea **''Pisum sativum'' subsp. ''elatius'' (syn. ''P. elatius'', ''P. syriacum'') **''Pisum sativum'' subsp. ''sativum'' ''Pisum sativum'' (the field or garden pea) is a major human food crop (see pea and split pea). ''Pisum'' species are used as food plants by the larvae of some Lepidoptera species including '' Bucculatrix pyrivorella'', cabbage moth, common swift, ghost moth, '' Hypercompe indecisa'', the nutmeg, setaceous Hebrew character and turnip moth. The ''Pisum sativum'' flower has 5 sepals (fused), 5 petals, 10 stamens (9 fused in a staminal tube and 1 stamen is free) a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Women Biologists
British may refer to: Peoples, culture, and language * British people, nationals or natives of the United Kingdom, British Overseas Territories, and Crown Dependencies. ** Britishness, the British identity and common culture * British English, the English language as spoken and written in the United Kingdom or, more broadly, throughout the British Isles * Celtic Britons, an ancient ethno-linguistic group * Brittonic languages, a branch of the Insular Celtic language family (formerly called British) ** Common Brittonic, an ancient language Other uses *''Brit(ish)'', a 2018 memoir by Afua Hirsch *People or things associated with: ** Great Britain, an island ** United Kingdom, a sovereign state ** Kingdom of Great Britain (1707–1800) ** United Kingdom of Great Britain and Ireland (1801–1922) See also * Terminology of the British Isles * Alternative names for the British * English (other) * Britannic (other) * British Isles * Brit (other) * Bri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1982 Deaths
__NOTOC__ Year 198 (CXCVIII) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Sergius and Gallus (or, less frequently, year 951 ''Ab urbe condita''). The denomination 198 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * January 28 ** Publius Septimius Geta, son of Septimius Severus, receives the title of Caesar. ** Caracalla, son of Septimius Severus, is given the title of Augustus. China *Winter – Battle of Xiapi: The allied armies led by Cao Cao and Liu Bei defeat Lü Bu; afterward Cao Cao has him executed. By topic Religion * Marcus I succeeds Olympianus as Patriarch of Constantinople (until 211). Births * Lu Kai (or Jingfeng), Chinese official and general (d. 269) * Quan Cong, Chinese general and a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1891 Births
Events January–March * January 1 ** Paying of old age pensions begins in German Empire, Germany. ** A strike of 500 Hungarian steel workers occurs; 3,000 men are out of work as a consequence. **German Empire, Germany takes formal possession of its new African territories. * January 2 – A. L. Drummond of New York City, New York is appointed Chief of the Treasury Secret Service. * January 4 – The Earl of Zetland issues a declaration regarding the famine in the western counties of Ireland. * January 5 **The 1891 Australian shearers' strike, Australian shearers' strike, that leads indirectly to the foundation of the Australian Labor Party, begins. **A fight between the United States and Indians breaks out near Pine Ridge agency. **Henry B. Brown, of Michigan, is sworn in as an Associate Justice of the Supreme Court of the United States, Supreme Court. **A fight between railway strikers and police breaks out at Motherwell, Scotland. * January 6 &ndas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nicotiana
''Nicotiana'' () is a genus of herbaceous plants and shrubs in the family Solanaceae, that is indigenous to the Americas, Australia, Southwestern Africa and the South Pacific. Various ''Nicotiana'' species, commonly referred to as tobacco plants, are cultivated as ornamental garden plants. '' N. tabacum'' is grown worldwide for the cultivation of tobacco leaves used for manufacturing and producing tobacco products, including cigars, cigarillos, cigarettes, chewing tobacco, dipping tobacco, snuff, and snus. Taxonomy Species The 79 accepted species include: * '' Nicotiana acuminata'' (Graham) Hook. – manyflower tobaccoKnapp et al. (2004) Nomenclatural changes and a new sectional classification in Nicotiana (Solanaceae) Taxon. 53(1):73-82. * '' Nicotiana africana'' Merxm. * '' Nicotiana alata'' Link & Otto – jasmine tobacco, sweet tobacco, winged tobacco, Persian tobacco, ''tanbaku'' (in Persian) * '' Nicotiana attenuata'' Torrey ex S. Watson &nd ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edgar Anderson
Edgar Shannon Anderson (November 9, 1897 – June 18, 1969) was an American botanist. He introduced the term '' introgressive hybridization'' and his 1949 book of that title was an original and important contribution to botanical genetics. HIs work on the transfer and origin of adaptations through natural hybridization continues to be relevant. Anderson was elected a Fellow of the American Academy of Arts and Sciences in 1934. In 1954, he was an elected a member of the National Academy of Sciences. He was also president of the Botanical Society of America in 1952, and was a charter member of the Society for the Study of Evolution and the Herb Society of America He received the Darwin-Wallace Medal of the Linnean Society in 1958. Early life and education Anderson was born in Forestville, New York. When he was three, his family moved to East Lansing, Michigan where his father had accepted a position to teach dairy husbandry. In 1914 Anderson entered Michigan State College to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heredity In Primula Sinensis Wellcome L0067073
Heredity, also called inheritance or biological inheritance, is the passing on of traits from parents to their offspring; either through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic information of their parents. Through heredity, variations between individuals can accumulate and cause species to evolve by natural selection. The study of heredity in biology is genetics. Overview In humans, eye color is an example of an inherited characteristic: an individual might inherit the "brown-eye trait" from one of the parents. Inherited traits are controlled by genes and the complete set of genes within an organism's genome is called its genotype. The complete set of observable traits of the structure and behavior of an organism is called its phenotype. These traits arise from the interaction of its genotype with the environment. As a result, many aspects of an organism's phenotype are not inherited. For example, suntanned skin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Congress Of Genetics
The International Congress of Genetics (ICG) is a five yearly conference for geneticists. The first ICG was held in 1898. Since 1973 It has been organized by the International Genetics Federation (IGF). The aim of the congress is to reflect on progress made in genetics, to celebrate the best of contemporary research and to anticipate future developments in the discipline. It is one of the most important genetics meetings, presenting all subfields of the discipline. These subfields cover all present-day experiments using the powerful genomic technologies. Also, the benefits and wider implications of genetic research to societies at large are explored. The Congress has been held in many major cities around the world, such as London, New York City, Paris, Ithaca, Edinburgh, Stockholm, Bellagio, Montreal, The Hague, Tokyo, Berkeley, Moscow, New Delhi, Toronto, Birmingham, Beijing, Melbourne, Berlin and Singapore. The last International Congress of Genetics took place in Singapore i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetic Linkage
Genetic linkage is the tendency of DNA sequences that are close together on a chromosome to be inherited together during the meiosis phase of sexual reproduction. Two genetic markers that are physically near to each other are unlikely to be separated onto different chromatids during chromosomal crossover, and are therefore said to be more ''linked'' than markers that are far apart. In other words, the nearer two genes are on a chromosome, the lower the chance of Genetic recombination, recombination between them, and the more likely they are to be inherited together. Markers on different chromosomes are perfectly ''unlinked'', although the penetrance of potentially deleterious alleles may be influenced by the presence of other alleles, and these other alleles may be located on other chromosomes than that on which a particular potentially deleterious allele is located. Genetic linkage is the most prominent exception to Gregor Mendel's Law of Independent Assortment. The first experim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geneticist
A geneticist is a biologist or physician who studies genetics, the science of genes, heredity, and variation of organisms. A geneticist can be employed as a scientist or a lecturer. Geneticists may perform general research on genetic processes or develop genetic technologies to aid in the pharmaceutical or and agriculture industries. Some geneticists perform experiments in model organisms such as ''Drosophila'', ''C. elegans'', zebrafish, rodents or humans and analyze data to interpret the inheritance of biological traits. A basic science geneticist is a scientist who usually has earned a PhD in genetics and undertakes research and/or lectures in the field. A medical geneticist is a physician who has been trained in medical genetics as a specialization and evaluates, diagnoses, and manages patients with hereditary conditions or congenital malformations; and provides genetic risk calculations and mutation analysis. Education Geneticists participate in courses from many area ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genetic Linkage
Genetic linkage is the tendency of DNA sequences that are close together on a chromosome to be inherited together during the meiosis phase of sexual reproduction. Two genetic markers that are physically near to each other are unlikely to be separated onto different chromatids during chromosomal crossover, and are therefore said to be more ''linked'' than markers that are far apart. In other words, the nearer two genes are on a chromosome, the lower the chance of Genetic recombination, recombination between them, and the more likely they are to be inherited together. Markers on different chromosomes are perfectly ''unlinked'', although the penetrance of potentially deleterious alleles may be influenced by the presence of other alleles, and these other alleles may be located on other chromosomes than that on which a particular potentially deleterious allele is located. Genetic linkage is the most prominent exception to Gregor Mendel's Law of Independent Assortment. The first experim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
