By A.H. Sturtevant

ISBN-10: 0879696079

ISBN-13: 9780879696078

Within the small Fly Room at Columbia collage, T.H. Morgan and his scholars, A.H. Sturtevant, C.B. Bridges, and H.J. Muller, conducted the paintings that laid the principles of contemporary, chromosomal genetics. the buzz of these instances, while the complete box of genetics used to be being created, is captured during this publication, written in 1965 through a type of current in the beginning. His account is without doubt one of the few authoritative, analytic works at the early heritage of genetics. This appealing reprint is observed by means of an internet site, supplying full-text types of the most important papers mentioned within the publication, together with the world's first genetic map.

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The third paper, in German, was received by the editor of the journal (Berichte der deutschen botanischen Gesellschaft) in Berlin on March 14 and was published April 25. These dates are of some interest because the brief note in the Comptes Rendus, the first to be published, does not mention Mendel, though it uses some of his terminology. The Revue général pa- T HE R EDISCOVERY 27 per is the one that is rarely cited. It is longer and does mention Mendel— though only on the last page, where is also an added footnote referring to the Berichte paper and to the papers by Correns and by Tschermak, which did not appear until May (apparently this paper was published in July).

These errata are rather minor, but they do make one wonder if the printer was confused by extensive alterations in the proofs. A careful comparison of the available dates, however, makes it seem impossible that such changes could have been a result of a letter from Correns after he had seen the Comptes Rendus paper, and very unlikely also that a letter from Tschermak could have been involved. Both of these men have stated (Roberts) that they learned that de Vries had the 28 A H I ST O RY OF G EN ET IC S interpretation when they received reprints of this paper from him.

This conclusion cannot be accepted as established but seems to be the simplest interpretation of the puzzling facts. In these three papers de Vries recorded a series of quite different genera of plants that had given the 3 : 1 ratio, and, in several of them, he had also seen the 1 : 1 ratio on crossing the F1 to the recessive. There was, therefore, no question that the scheme was generally applicable. De Vries concluded that it probably held for all discontinuous variations. Carl Correns (1864–1933) was a student of Nägeli and of the plant physiologist Pfeffer, who, like de Vries, was a student of Sachs.

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A History of Genetics by A.H. Sturtevant

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