By Ernst Mayr (auth.), Kurt Benirschke (eds.)
Ten years in the past a symposium on Cytotaxonomy 'was held in London (Proc. Linn. Soc. Lond. 169:110, 1958) during which a primary test used to be made to collect quite a few disciplines to debate advances of mammalian cytogenetics and to place them into right context with the sciences of evolution and taxonomy. The introductory comments through \V. B. Turrill to that symposium, primarily an admonishment to be tolerant of the quick comings of our respective disciplines, will be a correct start ning to this convention as ,,'ell. despite the fact that, the assembly held at Hanover was once conceived extra alongside the strains of comments made by way of R. B. Seymour Se,,'ell in his presidential deal with to a similar society: "It has been stated that scientists during this look for fact are these days an excessive amount of curious about the buildup of evidence, and make too little use in their imagina tion of their makes an attempt to give an explanation for such proof as they've got amassed. " (In "The continental glide idea and the distribution of the Copepoda," ibid. 166:149, 1956. ) \\Tith this as a history, years in the past we held the 1st of a chain of loosely-structured meetings on reproductive failure within the stress-free surroundings of this small New England collage neighborhood. The manu scripts of that assembly were released (Comparative points of Re efficient Failure, Springer-Verlag big apple Inc. , 1967).
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Extra info for Comparative Mammalian Cytogenetics: An International Conference at Dartmouth Medical School Hanover, New Hampshire, July 29—August 2, 1968
The karyotype of this Proto-Spalax supposedly consisted of a relatively small number of chromosomes, mostly of the larger metacentric type. From this original stock other forms have been derived, spreading out radially. The stepwise repatterning of the chromosome set occurred in association with the extension of the range. Only the southward expansion, eventually reaching the arid parts of Israel, is considered here. Along the tip of the southward extension which we have studied, there is an increase in chromosome number, culminating, at the margin of the distribution, in the highest number known for Spalax, namely 60.
Acad. Sci. ) 53:737, 1950-1951Sharman, G. : The mitotic chromosomes of marsupials and their bearing on taxonomy and phylogeny. Austr. J. ZooI. 9:38, 1961. Shaw, C. : Electrophoretic variation in enzymes. Science 149:936, 1965. Taylor, J. : Duplication of chromosomes and related events in the cell cycle. In: Cell Physiology of Neoplasia. 547-575. Thuline, H. , A. C. Morrow and A. G. ) Science 157 :431, 1967. Trujillo, J. , B. Walden, P. O'Neil and H. B. Anstall: Sex-linkage of glucose6-phosphate dehydrogenase in the horse and donkey.
G. Downie: Canine hemophilia B (Christmas disease). Brit. J. Haemat. 6:259, 1960. , J. Jainchill and C. Stenius: The creeping vole (Microtus oregoni) as a gonosomic mosaic. I. The OY/XY constitution of the male. Cytogenetics 2:232, 1963. ---, 1- Poole and I. Gustaysson: Sex-linkage of erythrocyte glucose-6-phosph ate dehydrogenase in two species of wild hares. Science 150:1737, 1965. - - - , D_ \Vol£ and N. B. Atkin: Evolution from fish to mammals by gene duplication. Hereditas 59:169, 1968. : Genetic regulation of immunoglobulin synthesis.