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ESP Digital Book

Proceedings of the Sixth International Congress of Genetics, Ithaca, New York, 1932

Donald F. Jones

Table of Contents:

Front Matter
Chapter Page 1
Meeting History and Description
Chapter Page 15
Minutes of Plenary Sessions
Chapter Page 20
Meeting Participants
Group Portrait
Chapter Page 50
Meeting Program
Chapter Page 68
Exhibits
Chapter Page 74
Excursions and Entertainments
Chapter Page 75
Group Conferences
Chapter Page 76
Transportation, Tours, and Lectures
Chapter Page 79
Treasurer's Report
Chapter Page 81
Welcoming Comments
Chapter Page 87
T. H. Morgan, The Rise of Genetics
Chapter Page 104
A. F. Blakeslee, The Species Problem in Datura
Chapter Page 121
F. A. E. Crew, Inheritance of Educability
Chapter Page 135
C. B. Davenport, Mendelism in Man
Chapter Page 141
R. A. Emerson, The Present Status of Maize Genetics
Chapter Page 153
H. Federly, The Conjugation of the Chromosomes
Chapter Page 165
R. A. Fisher, The Evolutionary Modification of Genetic Phenomena
Chapter Page 173
R. Goldschmidt, Genetik der Geographischen Variation
Chapter Page 185
J. B. S. Haldane, Can Evolution be Explained in Terms of Known Genetical Facts?
Chapter Page 190
O. Mohr, On the Potency of Mutant Genes and Wild-type Allelomorphs
Chapter Page 213
H. J. Muller, Further Studies on the Nature and Causes of Gene Mutations
Chapter Page 256
K. Sax, The Cytological Mechanism for Crossing Over
Chapter Page 274
L. J. Stadler, On the Genetic Nature of Induced Mutations in Plants
Chapter Page 295
C. Stern, Neuere Ergebnisse uber die Genetik und Zytologie des Crossing Over
Chapter Page 304
A. H. Sturtevant, The Use of Mosaics in the Study of the Developmental Effects of Genes
Chapter Page 308
N. W. Timofeef-Ressovsky, Mutations of the Gene in Different Directions
Chapter Page 331
N. I. Vavilov, The Process of Evolution on Cultivated Plants
Chapter Page 343
O. Winge, The Nature of Sex Chromosomes
Chapter Page 356
S. Wright, The Roles of Mutation. Inbreeding, Crossbreeding, and Selection in Evolution
Chapter Page 367
Appendix (short reports and exhibits)

Donald Forsha Jones was a United States maize geneticist and practical corn breeder at the Connecticut Agricultural Experiment Station, New Haven. Beginning at the station in 1914, he made high-yielding hybrid corn practical by his invention of the double-cross hybrid. In Jones' method, four inbred corn lines are used. The seed from two initial crosses are used to grow up parental hybrids for the production fields. The production fields yield seed in sufficient quantity to make the scheme practical. Until Jones invented the double-cross method, the yield from the parent lines (the inbreds) was insufficient to allow practical production of hybrid corn seed. Jones’ work received significant public attention and was used to make the first commercial hybrid corn in the 1920s. He was the sole geneticist at the Connecticut Station from 1915 until 1921. Jones was the president of the Genetics Society of America in 1935

The Proceedings of the Sixth International Congress of Genetics, held in 1932, offers a glimpse into classical genetics at the height of its power and influence. Thomas Morgan, who had just received the first Nobel Prize ever awarded in genetics, served as president of the congress. The participants list reads like a who's who of classical genetics: The three rediscovers of Mendel - Correns, de Vries, and von Tschermak - all attended the meeting. Morgan, Sturtevant, and Muller gave talks. Population genetics and the relationship of genetics to evolution was discussed by R. A. Fisher, J. B. S. Haldane, and Sewall Wright. According to the Treasurer's Report, the total cost of the meeting was $17,583.58.

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