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1. Chromosomal forms and risk assessment of Nannospalax (superspecies leudocon) (Mammalia: Rodentia) in the Carpathian Basin

Creator:
Németh, Attila, Révay, Tamás, Hegyeli, Zsolt, Farkas, János, Czabán, Dávid, Rózsás, Anita, and Csorba, Gábor
Type:
article and TEXT
Subject:
mole rat, cytogenetics, karyology, biogeographical regions, and IUCN categories
Language:
English
Description:
Available data on the distribution and karyology of Nannospalax (superspecies leucodon) from the Carpathian Basin are summarized. We argue that four chromosomal forms of the species complex are endemic to the Carpathian Basin and their former and recent distribution based on museum specimens, literature overview and our own observations is mapped. Based on current distribution data, a preliminary extinction risk-assessment is presented for each of these forms. In spite of the current IUCN category applied for the whole superspecies (i.e. “Least Concern”), one of the chromosomal forms is regarded hereby as Vulnerable, one as Endangered, and two as Data Deficient.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/

2. Chromosome number, karyotype morphology, heterochromatin distribution and nuclear DNA content of some talitroidean amphipods (Crustacea: Gammaridea)

Creator:
Libertini, Angelo, Trisolini, Renata, and Rampin, Massimiliano
Type:
article, model:article, and TEXT
Subject:
Amphipoda, cytogenetics, karyotype evolution, genome size, terrestrial life, and adaptation
Language:
English
Description:
Chromosome number, karyotype formula, C-banding pattern, genome size and DNA base composition were studied in three species of Hyalidae and seven species of Talitridae. A karyotype of 25 chromosome pairs, with median centromeres (FN = 100), was found in all the species of Talitridae analysed and Apohyale prevostii. Genome size (C-value) varies among Talitrida from 0.94 pg in Apohyale crassipes to 2.81 pg in Orchestia gammarellus, and the percentage of AT-DNA in the whole genome ranges from 56.12% in A. crassipes to 68.17% in Sardorchestia pelecaniformis. In comparison with Hyalidae, Talitridae show more uniformity in chromosome number and karyotype formula, and have larger genomes. There is a direct correlation between total DNA content and the amount of C-heterochromatic DNA. The cytogenetical data on Talitrida were compared from a phylogenetic and an evolutional point of view. The increase in genome size during the evolution of the Talitrida possibly had a role in their adaptation to supralittoral life and extreme subaerial conditions.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

3. Diverzita štírů rodu Euscorpius - proč nedají ani současným arachnologům spát?

Creator:
Plíšková, Jana
Format:
bez média and svazek
Type:
article, text, články, journal articles, model:article, and TEXT
Subject:
Biologické vědy, biologie, štíři, systematická zoologie, druhová rozmanitost, cytogenetika, biology, scorpions, animal classification, species diversity, cytogenetics, Evropa, Europe, taxonomie, cytogenetické metody, taxonomy, Euscorpius, 2, and 57/59
Language:
Czech
Description:
Předkládaný článek přináší stručný průřez problematiky studia taxonomie štírů rodu Euscorpius. Evropským štírům byla věnována pozornost již od poloviny 18. století. Po bezmála 250 letech zkoumání se tento rod stále nedočkal vyřešení otázky své komplikované taxonomie. Zdá se ovšem, že současné studie kombinující morfologické, genetické a cytogenetické znaky mohou být klíčem pro odhalení skutečné druhové diverzity., This article briefly summarizes the last two and a half centuries of taxonomic research into the European genus of scorpions commonly known as small wood scorpions (Euscorpius). Despite the fact that taxonomists have been focusing on this genus since the mid-18th century, their taxonomy is not yet sufficiently resolved. However, present studies seem to be on the right track, and looking into a combination of morphological, genetic and cytogenetic features may hold the key to revealing the true diversity of the species., and Jana Plíšková.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

4. Jak a proč změnit identitu buňky

Creator:
Jiří Klíma, Lišková, Irena, and Jan Motlík
Format:
print, bez média, and svazek
Type:
article, články, model:article, and TEXT
Subject:
Biologické vědy, cytogenetika, identita, buňky, cytogenetics, identity, cells, identita buňky, přeprogramování buněk, identity of the cell, reprogramming, 2, and 57/59
Language:
Czech
Description:
Cílená změna původní identity buňky v identitu jinou neboli reprogramování buněk nachází své uplatnění jak v základním výzkumu, tak i v případné buněčné terapii. Z mnoha postupů reprogramování autoři představují přípravu indukovaných pluripotentních buněk (iPS), transdiferencovaných anebo přímo reprogramovaných buněk. Je popsána cesta přípravy a z ní plynoucí vlastnosti a potenciál indukovaných buněk., Induced change in the identity of the cell known as reprogramming of the somatic cell is applicable both in basic research and cell therapy. Out of many reprogramming approaches the authors introduce the derivation of induced pluripotent stem (iPS), transdifferentiated and direct reprogrammed cells. The workflow for the preparation of induced cells and a comment on their properties and potentials are given., and Jiří Klíma, Irena Lišková, Jan Motlík.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

5. Tapeworm chromosomes: their value in systematics with instructions for cytogenetic study

Creator:
Orosová, Martina and Špakulová, Marta
Format:
print, počítač, and online zdroj
Type:
model:article and TEXT
Subject:
tasemnice, cytogenetika, tapeworms, cytogenetics, karyotype, methodological manual, 2, and 59
Language:
English
Description:
The history and value of cytogenetic features for addressing questions of the evolution and systematics of tapeworms (Cestoda) are briefly reviewed along with instructions for collecting karyological data. As a supplement to worm morphology, chromosome number and morphology have been helpful in determining the systematic status of some genera in the Diphyllobothriidae and species in the Bothriocephallidea. In addition, many new techniques for chromosome analysis have been recently applied in morphological and molecular studies of invertebrates, including tapeworms. Methods of molecular karyology, fluorescence in situ hybridisation, and chromosomal location of satellite DNA, microsatellites or histone genes may also provide useful data to inference of taxonomic relationships and for revealing trends or general lines of chromosome evolution. However, as karyological data are available only for few tapeworms, they are seldom an integral part of evolutionary and taxonomic studies of cestodes. A primary reason for this lack of karyological data may lie in general difficulties in working with tapeworm chromosomes. To address these problems, herein we present a well-tested, step-by-step illustrated guide on the fixation of tapeworm material and preparation of their chromosomes for cytogenetic studies. The technique requires standard glassware, few reagents and simple equipment such as needles; it can also be used on other neodermatan flatworms., Martina Orosová, Marta Špakulová., and Obsahuje bibliografii
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

6. Zum Problem der Vererbungsträger

Creator:
František Vejdovský
Publisher:
Im Verlag der Königl. Böhm. Gesellschaft der Wissenschaften
Format:
print, svazek, and 184 stran, xii listů obrazových příloh : ilustrace.
Type:
model:monograph and TEXT
Subject:
Obecná genetika. Obecná cytogenetika. Evoluce, genetika, cytogenetika, dědičnost, genetics, cytogenetics, heredity, 575, 575.1, (048.8), and 2
Language:
German
Description:
von F. Vejdovský. and KČSN - signatura S-H 889
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public