Karyotypes and sex ratios in populations of Eubranchipus grubii (Dybowski, 1860) and Branchipus schaeferri Fischer, 1834 (Anostraca) from Poland
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F11%3A10109115" target="_blank" >RIV/00216208:11310/11:10109115 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1163/001121611X577918" target="_blank" >http://dx.doi.org/10.1163/001121611X577918</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1163/001121611X577918" target="_blank" >10.1163/001121611X577918</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Karyotypes and sex ratios in populations of Eubranchipus grubii (Dybowski, 1860) and Branchipus schaeferri Fischer, 1834 (Anostraca) from Poland
Popis výsledku v původním jazyce
Two populations of the fairy shrimp Eubranchipus grubii (Dybowski, I 860) and one population of Branchipus schaefferi Fischer, 1834 from Poland were studied cytogenetically. The aim was to confirm their diploid chromosome numbers and chromosome morphology, as well as to reveal the distribution of nucleolar organizer regions (NORs) and the course of meiosis. The first species exhibited 24 small chromosomes in both sexes, while the latter showed 2n = 20 in both males and females. In E. grubii, female meiosis involved a "diffuse stage" characterized by decondensation of chromatin, and positive heteropycnosis (after staining by Giemsa) of one bivalent. The morphology of the plates of the second meiotic division suggests the chromosomes in both species aremonocentric (prevailingly bi-armed). Nevertheless, constitutive heterochromatin has not been visualized by C-banding. Silver staining revealed 3 pairs of nucleolar organizer regions (NOR) in B. schaefferi, while in E. grubii the detection
Název v anglickém jazyce
Karyotypes and sex ratios in populations of Eubranchipus grubii (Dybowski, 1860) and Branchipus schaeferri Fischer, 1834 (Anostraca) from Poland
Popis výsledku anglicky
Two populations of the fairy shrimp Eubranchipus grubii (Dybowski, I 860) and one population of Branchipus schaefferi Fischer, 1834 from Poland were studied cytogenetically. The aim was to confirm their diploid chromosome numbers and chromosome morphology, as well as to reveal the distribution of nucleolar organizer regions (NORs) and the course of meiosis. The first species exhibited 24 small chromosomes in both sexes, while the latter showed 2n = 20 in both males and females. In E. grubii, female meiosis involved a "diffuse stage" characterized by decondensation of chromatin, and positive heteropycnosis (after staining by Giemsa) of one bivalent. The morphology of the plates of the second meiotic division suggests the chromosomes in both species aremonocentric (prevailingly bi-armed). Nevertheless, constitutive heterochromatin has not been visualized by C-banding. Silver staining revealed 3 pairs of nucleolar organizer regions (NOR) in B. schaefferi, while in E. grubii the detection
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
EB - Genetika a molekulární biologie
OECD FORD obor
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Návaznosti výsledku
Projekt
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Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2011
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Crustaceana
ISSN
0011-216X
e-ISSN
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Svazek periodika
84
Číslo periodika v rámci svazku
5
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
14
Strana od-do
707-720
Kód UT WoS článku
000293152900015
EID výsledku v databázi Scopus
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