منابع مشابه
Evolution in the Genus Drosophila
This little book is the transcribed account of a Highland Park conference on this subject. It was attended by a representative group of persons interested in these basic mechanisms and the discussions were free and informative. The material has been quite well edited and yet has kept the tone of free discussion. This particular volume is somewhat physical and chemical in character and discusses...
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Employing mitochondrial DNA (mtDNA) restriction-endonuclease maps as the basis of comparison, we have investigated the evolutionary affinities of the seven species generally recognized as the genus Equus. Individual species' cleavage maps contained an average of 60 cleavage sites for 16 enzymes, of which 29 were invariant for all species. Based on an average divergence rate of 2%/Myr, the varia...
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Background: The Mannheimia species encompass a wide variety of bacterial lifestyles, including opportunistic pathogens and commensals of the ruminant respiratory tract, commensals of the ovine rumen, and pathogens of the ruminant integument. Here we present a scenario for the evolution of the leukotoxin promoter among representatives of the five species within genus Mannheimia. We also consider...
متن کاملChloroplast genome evolution in the genus Avena.
The genus Avena contains five different chloroplast genomes, I-V. A physical map of chloroplast (ct) DNA of Avena sativa (type I chloroplast genome) was constructed using three restriction endonucleases, PstI, SalI and SmaI. This genome is ca. 135.5 kbp in size, and contains two inverted repeats of ca. 22.5 kbp each, separated by a large (ca. 79.0 kbp) and small (ca. 12.5 kbp) single copy regio...
متن کاملEvolution of Globin Expression in the Genus
Comparison of electrophoretic globin phenotypes of 18 different Xenopus taxa reveals four different basic types of banding patterns. Each type includes species that also are similar in their morphological, cytogenetical, and biochemical characteristics. Three of these patterns reflect distinct evolutionary lines, while the fourth may be interpreted as the intersection of two of these lines. The...
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ژورنال
عنوان ژورنال: Evolution
سال: 1959
ISSN: 0014-3820
DOI: 10.1111/j.1558-5646.1959.tb03024.x