About: Cytogenetic of bisexual species and their asexual hybrid clones in European spined loach, genus Cobitis. I. Karyotypes and extensive polymorphismus of major ribosomal sites in four parental species     Goto   Sponge   NotDistinct   Permalink

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  • Four European species of spined loaches were identified as parental species of asexually reproducing di-, tri- and tetraploid hybrid clones. The karyotypes of these species differ remarkably: Cobitis taenia (2n = 48 karyotype, 5 metacentrics (M)+10 submetacentrics (SM)+9 subtelocentrics-acrocentrics (ST-A), one M characteristically larger than others), C. elongatoides (2n=50, 15M + 8SM +1ST+1A), C.tanaitica (2n=50,6M+13SM+6ST-A), C.spec. Crymea (2n=50, 5M+15SM+4ST+1A, two M distincly larger). Furthemore, each species expresses a specific polymorphism, i.e. presence/ absence of NOR sites, in which two chromosome pairs (C. taenia, short arms of middle-sized ST and SM) or three (C. elongatoides, middle-sized M, SM, large SM; C. tanaitica, middle-sized SM, two large ST; C.spec. Crymea, middle-sized SM, two large ST) are involved. Some ribosomal sites were CMA 3-negative suggesting that they were not associated with GC-rich DNA heterochromatin. Reversely, each parental genome also contains numerous GC-ri
  • Four European species of spined loaches were identified as parental species of asexually reproducing di-, tri- and tetraploid hybrid clones. The karyotypes of these species differ remarkably: Cobitis taenia (2n = 48 karyotype, 5 metacentrics (M)+10 submetacentrics (SM)+9 subtelocentrics-acrocentrics (ST-A), one M characteristically larger than others), C. elongatoides (2n=50, 15M + 8SM +1ST+1A), C.tanaitica (2n=50,6M+13SM+6ST-A), C.spec. Crymea (2n=50, 5M+15SM+4ST+1A, two M distincly larger). Furthemore, each species expresses a specific polymorphism, i.e. presence/ absence of NOR sites, in which two chromosome pairs (C. taenia, short arms of middle-sized ST and SM) or three (C. elongatoides, middle-sized M, SM, large SM; C. tanaitica, middle-sized SM, two large ST; C.spec. Crymea, middle-sized SM, two large ST) are involved. Some ribosomal sites were CMA 3-negative suggesting that they were not associated with GC-rich DNA heterochromatin. Reversely, each parental genome also contains numerous GC-ri (en)
  • Čtyři evropské druhy sekavců byly identifikovány jako rodičovské druhy asexuálně se reprodukujících di-, tri- a tetraploidních hybridních klonů. Karyotypy těchto druhů se značně liší: Cobitis taenia (2n = 48: 5 metacentrických /M/ + 10 submetacentrických /SM/ +9 subtelocentrických-akrocentrických /ST-A/ chromozómů, jeden M charakteristicky větší než ostatní), C. elongatoides (2n = 50, 15 M + 8SM +1ST+1A), C. tanaitica (2n= 50, 6M + 13SM + 6ST-A), C. spec. Crymea (2n = 50, 5M + 15SM + 4ST + 1A, dva M znatelně větší). Dále každý druh exprimuje specifický polymorfismus, tj. přítomnost/absenci NOR míst, zahrnujících dva chromozómové páry (C.taenia, krátká raménka středně velkých ST a SM) nebo tři (C.elangatoides, středně velké M, SM, velké SM; C.tanaitica, středně velké SM, dva velké ST; C. spec. Crymea, středně velké SM, dva velké ST). Některé ribozomální oblasti byly CMA 3-negativní a lze předpokládat, že nebyly asociovány s GC-bohatým DNA heterochromatinem. Naopak, každý rodičovský genom také obsahova (cs)
Title
  • Cytogenetika bisexuálních druhů a jejich asexuálních hybridních klonů u sekavců rodu Cobitis. I. Karyotypy a rozsáhlý polymorfismus velkéí ribizobální jednotky čtyř rodičovských druhů (cs)
  • Cytogenetic of bisexual species and their asexual hybrid clones in European spined loach, genus Cobitis. I. Karyotypes and extensive polymorphismus of major ribosomal sites in four parental species
  • Cytogenetic of bisexual species and their asexual hybrid clones in European spined loach, genus Cobitis. I. Karyotypes and extensive polymorphismus of major ribosomal sites in four parental species (en)
skos:prefLabel
  • Cytogenetika bisexuálních druhů a jejich asexuálních hybridních klonů u sekavců rodu Cobitis. I. Karyotypy a rozsáhlý polymorfismus velkéí ribizobální jednotky čtyř rodičovských druhů (cs)
  • Cytogenetic of bisexual species and their asexual hybrid clones in European spined loach, genus Cobitis. I. Karyotypes and extensive polymorphismus of major ribosomal sites in four parental species
  • Cytogenetic of bisexual species and their asexual hybrid clones in European spined loach, genus Cobitis. I. Karyotypes and extensive polymorphismus of major ribosomal sites in four parental species (en)
skos:notation
  • RIV/60076658:12610/04:00005809!RIV/2005/MSM/126105/N
http://linked.open.../vavai/riv/strany
  • 24
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(MSM 126100001)
http://linked.open...iv/cisloPeriodika
  • 1
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 559198
http://linked.open...ai/riv/idVysledku
  • RIV/60076658:12610/04:00005809
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Cobitis;hybrid clone;karyotype;chromosome (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV
  • [A7D69F9658CF]
http://linked.open...i/riv/nazevZdroje
  • Cytogenetic and Genome Ressearch
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 106
http://linked.open...iv/tvurceVysledku
  • Flajšhans, Martin
  • Ráb, Petr
  • Rábová, Marie
  • Boron, A.
  • Šlechtová, Věra
  • Bohlen, A.
  • Janko, K.
http://linked.open...n/vavai/riv/zamer
issn
  • 1424-8581
number of pages
http://localhost/t...ganizacniJednotka
  • 12610
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