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Data path definition in software defined networks
Zima, Jan
This thesis is concerned with visualization of OpenFlow-based software-defined networks, and definition of arbitrary traffic paths. For this purpose, an application called Visdan has been developed. It provides a visualization of the connected network, and allows the user to define custom traffic paths in the network using the graphical visualization. This work provides a broad explanation of OpenFlow-based networks and may serve as an introduction into software-defined networking. Visdan is an example of one of the approaches to programming applications for such networks.
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Review of karyotype races of mole rats of the genera Spalax and Nannospalax and their geographic distribution
Kučerová, Šárka ; Zima, Jan (advisor) ; Šťáhlavský, František (referee)
Mole rats are divided into two genera, Spalax and Nannospalax who live in the territory of South-East Europe and the Middle East. 5 different karyotypic races found in the genus Spalax that can be assigned to individual taxonomically recognized species. The genus Nannospalax has described in 83 karyotypic form or cytotypes that differ in fundamental characteristics of sets of chromosomes (2n, NF). The diploid number of chromosomes varies from 36 to 62, the number of autosomal arms from 62 to 120 and the number of arms of chromosome sets of females from 68 to 124. The three most commonly recognized species (Nannospalax leucodon, N. xanthodon, N. ehrenbergi) cannot clearly distinguish by karyological.
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Fylogeneze vybraných druhů letounů Afriky na základě cytogenetického a molekulárního přístupu
Koubínová, Darina ; Zima, Jan (advisor) ; Macholán, Miloš (referee) ; Martínková, Natália (referee)
Phylogenetic relationships of a sample comprising 248 bats belonging to 19 species and four families (Hipposideridae, Rhinolophidae, Molossidae and Vespertilionidae) from Senegal (Western Africa) were investigated with the use of multi-locus sequence data and non- differentially stained chromosomes. The karyotypes of Hipposideros ruber, H. tephrus, H. jonesi and H. cyclops were described for the first time. The standard Hipposideros formula was recorded in H. tephrus, H. jonesi and H. ruber (2n = 32, FNa = 60, FN = 64). The karyotypes of H. cyclops (2n = 36, FN = 66) and H. gigas (2n = 52, FN = 64) substantially diverged from this typical chromosomal complement. Rhinolophus landeri and R. fumigatus shared the same diploid number (2n = 58), but differed in the chromosome morphology (R. fumigatus - FNa = 60, FN = 64; R. landeri - FNa = 64, FN = 68). Rhinolophus landeri was found karyotypically distinct to other African populations, thus signalling a possible presence of cryptic forms within this species. The karyotypes of Chaerephon pumilus and Mops condylurus had a 2n = 48, FN = 54 and were similar to other previously studied species of this chromosomally conservative family. Chromosomal, Bayesian, maximum likelihood and genetic distance analyses revealed an indication for the existence of cryptic...
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Neutral genetic variability and structure in chamois populations in Slovakia
Hájková, Andrea ; Zima, Jan (advisor) ; Kotlík, Petr (referee)
The Tatra chamois (Rupicapra rupicapra tatrica), an endemic mountain ungulate, occurs in the High Tatra Mts. (northern Slovakia and southern Poland). In the second part of the 20th century several chamois introductions occurred in Slovakia: Tatra chamois (from the High Tatra Mts.) were introduced into the Low Tatra Mts., while Alpine chamois (R. r. rupicapra) into the Veľká Fatra and Slovenský raj Mts. The High Tatra Mts. population underwent several population declines (bottlenecks) and all other Slovak populations were founded from only a few individuals (founder effect). Moreover, because the Low Tatra, Veľká Fatra and Slovenský raj are neighbouring mountain ranges, there is a potential risk of migration and hybridisation between the subspecies. Using 18 microsatellite loci, we studied neutral genetic variability, structure and potential hybridisation in chamois populations in Slovakia. The study is based on 193 samples: 95 tissue and 5 blood samples, and 88 faecal and 5 hair samples. Low genetic variability was found in all populations, the lowest one in High Tatra Mts. population. High values of fixation index, the number of private alleles, and factorial correspondence analysis indicated strong differentiation between the studied populations. Bayesian clustering divided Slovak chamois...
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