Contributions to the Genetics, Taxonomy, and Ecology of Drosophila Pseudoobscura and Its Relatives |
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A. H. Sturtevant Aldrich Andreas Canyon Arizona Arrowhead BAC BAC BAC BCA BCA biota breakage British Columbia California Carnegie Inst central Mexico Chiricahua chromosome of Drosophila chromosomes examined climate Coast Ranges Colorado configuration Cowichan Creek Cuernavaca disks distribution area Dobzhansky and Sturtevant Drosophila melanogaster Drosophila persimilis Drosophila pseudoobscura Estes Park flora forest frequencies gene arrangements Genetics geographic gradient Guatemala heterozygotes heterozygotes pl Hidalgo homozygotes Hovanitz hybrids Hypothetical June Keen Camp Klamath larvae localities melanogaster Mendocino ments Mexico Mexico and Guatemala Miocene miranda Mount San Jacinto natural populations northern Nuevo León numbers of flies Oaxaca obscura observed occur Olympic Pacific coast pair Panamint Range Park phylogeny Pikes Peak Piñon Flat Pleistocene races region relatively Rocky Mountains samples sections Sequoia sex ratio Sierra Nevada single inversion southern species Standard Sturtevant 1938 temperature Texas third chromosome tion transect traps Tree Line Wawona Whitney Wildrose Y chromosome
Popular passages
Page 140 - ... race' with respect to the gene B, to a still different 'race' with respect to C, etc. To be sure, the ideal of genetic analysis is to be able to describe each individual in terms of gene and chromosome variants which it contains. But the race concept is a tool for the description not of individuals, but of subdivisions of species. We propose to define races as populations characterized by differing frequencies of the variable genes and chromosome structures. Ideally, all variable genes and chromosome...
Page 182 - A comparative study of the Bridge Creek flora and the modern redwood forest.
Page 181 - Axelrod, DI 1937 A Pliocene flora from the Mount Eden beds, southern California.
Page 50 - Council. 1. Grants from the Carnegie Corporation of New York, through the Carnegie Institution of Washington, for general expenses of office, maintenance, and special investigations, disbursed by the treasurer of the National Research Council...
Page 183 - Chaney, RW, and MK Elias. 1936. Late Tertiary floras from the High Plains. Carnegie Inst. Wash. Pub. 476, I, pp.
Page 183 - Bull., 20 (part 2) : 33-367. 1935. Tertiary grasses and other prairie vegetation from the High Plains of North America.
Page 50 - Chairman of the Division of Historical Research of the Carnegie Institution of Washington.
Page 182 - The succession and distribution of Cenozoic floras around the Northern Pacific basin.
Page 54 - Comparison of the values of acceleration amplitude between methods a and b, c and d, e and f, and g and h...