Titlebook: Evolutionary Genetics of Fishes; Bruce J. Turner Book 1984 Springer Science+Business Media New York 1984 biology.evolution.evolutionary bi

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dura-mater

The Evolution of Clonal Diversity in Poeciliopsis,genetic studies have reported abundant clonal diversity in a number of asexually reproducing organisms [see reviews by Parker (1979a), Vepsalainen and Jarvinen (1979), and Vrijenhoek (1979a)]. What then is the source of this clonal diversity and how might it contribute to the ecological and evolutio

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Descriptive Genetics of Cichlid Fishes,new species arise? While substantial insights have been made in the areas of functional anatomy and ecology by Barel .. (1977), Greenwood (1981), Liem (1980), McKaye (1980), and their coworkers, the basic questions of trophic divergence and speciation have remained controversial (Sage and Selander,

calorie

Tetraploidy and the Evolution of Salmonid Fishes,ently been recognized as a potentially important process in the evolution of vertebrates (Ohno, 1974; Fisher ..,1980; Bogart, 1980; Schultz, 1980). Mammals and birds generally possess more DNA per cell than do fish and other chordates. This observation and the existence of many duplicated gene loci

EVICT

Tetraploidy and the Evolution of the Catostomid Fishes,tate of flux owing to polyploidization some 50 million years ago. The time of origin of these fish is advantageous in understanding the overall picture of genome evolution in eukaryotes. Catostomids, or the suckers, are not so recent in origin that duplicate genes are identical in structure and regu

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原告

The Evolutionary Genetics of Xiphophorus,upy a variety of habitats, ranging widely through the Atlantic drainage from northeastern Mexico, south-east through Guatemala, Honduras and Belize. Like most other members of the family Poeciliidae, . species are internally fertilizing and ovoviviparous (Rosen and Bailey, 1963). Females can store s

interrupt

Apomictic Reproduction in the Amazon Molly, Poecilia formosa, and Its Triploid Hybrids, intermediate in form between two sexual species, . (LeSueur) and . Steindachner and is thought to have arisen in nature as a hybrid of these species (Hubbs and Hubbs, 1932; Hubbs, 1955, 1964; Abramoff .., 1968; Prehn and Rasch, 1969; Balsano .., 1972). . is not a true thelytokous parthenogen as def

laparoscopy

Evolutionary Ecology of Unisexual Fishes,irst, they reproduce, in effect, asexually, and second, their genomic constitutions are invariably identical to those of F. hybrids. Thus, a major difficulty in analyzing the evolutionary ecology of these species is to determine the extent to which the distinct phenomena of asexuality and hybridity