Journal ArticleDOI
Estimate of genetic polymorphism and heterozygosity in three species of rockfish (genus Sebastes).
TLDR
An estimate of the genetic polymorphism and average hetorozygosity in three species of rockfish, Sebastes alutus, S. caurinus, and S. elongatus' was made using differences in electrophoretic mobility of proteins on starch gel to yield estimates of 8,4 and 8 per cent of all polymorphic for the average species population.Abstract:
1. 1. An estimate of the genetic polymorphism and average hetorozygosity in three species of rockfish, Sebastes alutus, S. caurinus, and S. elongatus' was made using differences in electrophoretic mobility of proteins on starch gel. 2. 2. In S. alutus two of twenty-five loci; in S. caurinus, one of twenty-five loci; and in S. elongatus, two of twenty-four loci were polymorphic. 3. 3. This yields estimates of 8,4 and 8 per cent of all polymorphic for the average species population and values of 3·8, 1·8 and 3·3 per cent for the proportion of the genome heterozygous per individual in the average population.read more
Citations
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Book ChapterDOI
The Evolutionary Significance of Genetic Diversity: Ecological, Demographic and Life History Correlates
TL;DR: The evolutionary significance of genetic diversity of proteins in nature remains controversial despite the numerous protein studies conducted electrophoretically during the last two decades.
Journal ArticleDOI
Genetic variation in marine teleosts: High variability in habitat specialists and low variability in habitat generalists
P. J. Smith,Y. Fujio +1 more
TL;DR: It is suggested that much of the data can be explained by a habitat specialist-generalist model, with high heterozygosities in specialists and low heterozygOSities in generalists, but that this is only one of a mosaic of factors which influence genetic variation.
Journal ArticleDOI
Statistical Studies on Protein Polymorphism in Natural Populations. III. Distribution of Allele Frequencies and the Number of Alleles per Locus
TL;DR: The results did not support the view that intracistronic recombination is an important source of genetic variation and the total number of alleles per locus was positively correlated with molecular weight in most of the species examined, and the magnitude of the correlation was consistent with the theoretical prediction from mutation-drift hypothesis.
Journal ArticleDOI
Genetic Variability and Relationships in Pacific Salmon and Related Trout Based on Protein Variations
TL;DR: An investigation was made of the biochemical genetic variation within and among Pacific salmon and related trout and the differences of these two parameters between populations of salmon and rainbow trout were significant and may reflect the greater habitat diversity of rainbow trout contrasted with Pacific salmon species.
Journal ArticleDOI
Relationship between enzyme heterozygosity and quaternary structure
TL;DR: The need for proteins to maintain particular quaternary structures constrains variability in amino acid sequence, which results in monomeric enzymes being more variable than dimeric forms, which in turn are expected to be moreVariable than tetrameric forms.
References
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Journal ArticleDOI
Starch gel electrophoresis of enzymes—A compilation of recipes
Charles R. Shaw,Rupi Prasad +1 more
TL;DR: Most of the methods outlined here have been used primarily for tissue extracts from mammalian species, and a few have been developed only on plants or lower animals, but this is not to say that they will not work on higher organisms.
Journal ArticleDOI
A molecular approach to the study of genic heterozygosity in natural populations. ii. amount of variation and degree of heterozygosity in natural populations of drosophila pseudoobscura
Richard C Lewontin,J. L. Hubby +1 more
TL;DR: This study shows that there is a considerable amount of genic variation segregating in all of the populations studied and that the real variation in these populations must be greater than the authors are able to demonstrate.
Journal ArticleDOI
A molecular approach to the study of genic heterozygosity in natural populations. I. The number of alleles at different loci in Drosophila pseudoobscura.
J. L. Hubby,Richard C Lewontin +1 more
TL;DR: It is shown that for all the wealth of observation and experiment, the techniques of population genetics have not allowed us to ask directly the most elementary question about the genetic structure of a population: at what proportion of his loci can the authors expect a diploid individual to be heterozygous?
Journal ArticleDOI
A molecular approach to the study of genic heterozygosity in natural populations. IV. Patterns of genic variation in central, marginal and isolated populations of Drosophila pseudoobscura.
Journal ArticleDOI
Protein polymorphism and genic heterozygosity in a wild population of the house mouse (Mus musculus).
Robert K. Selander,Suh Y. Yang +1 more
TL;DR: Electrophoretic variation in 35 enzymes and nonenzymatic proteins is examined in samples of mice taken in several barns at a farm in southern California in an effort to increase the number of protein types available for studies of wild populations.
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