Results 181 to 190 of about 10,602 (212)

Allozyme Variation in Chenopodium fremontii

Systematic Botany, 1977
Allozyme variation of leucine aminopeptidase, glutamate-oxaloacetate transaminase and phosphoglucosisomerase was examined in Chenopodium fremontii, a species widely distributed in the western United States. Plants in the northern part of the range (western Nebraska, Wyoming, northern and western Colorado, and Utah) differfrom those in New Mexico ...
Daniel J. Crawford, Hugh D. Wilson
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Thermal selection of allozyme polymorphisms in barnacles

Nature, 1977
Is protein polymorphism adaptive or neutral1? Attempts to assess the neutrality theory on the basis of gene frequencies and theoretical population genetics models seem, at least to some authors, to be unsuccessful2. Possible promising approaches involve the search for direct correlation of isozymes with the environment1 and with physiological function3.
E, Nevo, T, Shimony, M, Libni
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New allozyme variability in Italian honey bees

Journal of Heredity, 1985
Adult workers of the honey bee, Apis mellifera ligustica, from Italy were assayed for enzyme polymorphism using a variety of electrophoretic conditions. Three polymorphic enzyme systems are described, two of which, malic enzyme and an esterase, were previously unknown in indigenous A. m. ligustica.
W S, Sheppard, S H, Berlocher
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Allozyme variation in bumble bees (Hymenoptera: Apidae)

Biochemical Genetics, 1992
Allozyme variation at an average of 37.3 loci was assessed in queens of 16 Bombus and 2 Psithyrus bumble bee species from North America. The mean expected heterozygosity (H) for the Bombus species was 0.008 +/- 0.006 (95% confidence limits) and that for the Psithyrus was 0.007 +/- 0.007.
R E, Owen, L J, Mydynski, L, Packer, D B, McCorquodale   +3 more
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Allozyme Diversity in Asian Apis

2019
This chapter reviews the published studies on allozymes of Asian honey bees. Gel electrophoresis of enzymes, the protein products of genes, provided biologists with the first technique that allowed them to examine genetic diversity directly. It was soon recognized that this unanticipated wealth of genetic variability at both the population and species ...
Gan Yik-Yuen, Gard W. Otis, Makhdzir Mardan, S. G. Tan   +3 more
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Allozyme variation in stable flies (Diptera: Muscidae)

Biochemical Genetics, 1993
Polyacrylamide gel electrophoresis was used to resolve allozymes in the cosmopolitan blood-feeding stable fly, Stomoxys calcitrans (L.). Nineteen of 38 loci were polymorphic (53%). Mean heterozygosities among all loci and among only polymorphic loci were 0.096 and 0.182, respectively.
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Allozymic Variability in Sullivantia (Saxifragaceae)

Systematic Botany, 1982
Populations of Sullivantia species were investigated electrophoreti- cally to evaluate the effect of geographic isolation and small population size on genetic variability. Starch gel electrophoresis demonstrated that Sullivantia species are allozymically depauperate.
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Allozyme Variation in Busycon Whelks (Gastropoda: Melongenidae)

Biochemical Genetics, 2000
Large Busycon whelks are used in physiological research and are key predators in shallow water marine communities in eastern North America. Allozyme analysis of 16 loci in Busycon carica (knobbed whelk), B. sinistrum (left-handed or lightning whelk), and the closely related outgroup Busycotypus spiratum (pear whelk) was performed.
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Allozymes and fitness: Evolution of a problem

Trends in Ecology & Evolution, 1987
It was expected that studies of electrophoretic variability in natural populations would resolve longstanding controversies concerning the form of natural selection and its effect on genetic variance in fitness. Recent studies of fitness components for allozymes in E.
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[Studies on allozyme of Gammatricula].

Zhongguo ji sheng chong xue yu ji sheng chong bing za zhi = Chinese journal of parasitology & parasitic diseases, 2003
To furnish molecular genetic evidences for taxonomy of Gammatricula.A total of 24 enzymes of 6 populations of Gammatricula songi and 1 population of Gammatricula chinensis collected from Kaihua County and Chunan County of Zhejiang Province were studied using horizontal starch gel electrophoresis.29 loci were found.
X, Zeng, C, Chen, J, Ding, G M, Davis
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