"Breeding sex-reverted males and experimental gynogenesis indicated female heterogamety of X. laevis. We observed individual variability of chromosome 12 morphology in 80 - 90 % of females. Mitochondrial malic enzyme is sex-linked with 6 % of recombinantsWe suggest to identify heterochromosome pair by isolation of malic enzyme and determination of partial aminoacid sequence followed by RT-PCR, cloning, DNA sequencing and FISH."@en . . . . . "K\u0159\u00ED\u017Een\u00ED samc\u016F z\u00EDskan\u00FDch zvratem pohlav\u00ED a um\u011Bl\u00E1 gynogeneze dokazuj\u00ED heterogametii samic X. laevis. Nebyl pops\u00E1n \u017E\u00E1dn\u00FD chromozom\u00E1ln\u00ED heteromorfismus. Pozorovali jsme individu\u00E1ln\u00ED variabilitu morfologie chromozomu 12 u 80 - 90 % samic. D\u011Bdi\u010Dnost mitochondri\u00E1ln\u00ED mal\u00E1t dehydrogen\u00E1zy (dekarboxyluj\u00EDc\u00ED)je v\u00E1z\u00E1na na pohlav\u00ED s 6 % rekombinant\u016F. Navrhujeme identifikovat heterochromozom\u00E1ln\u00ED p\u00E1r izolac\u00ED tohoto enzymu, zji\u0161t\u011Bn\u00EDm \u010D\u00E1sti proteinov\u00E9 sekvence n\u00E1sledovan\u00E9 RT-PCR, klonov\u00E1n\u00EDm, sekvenov\u00E1n\u00EDm DNA a fluorescen\u010Dn\u00ED hybridizac\u00ED in situ." . "2008-05-19+02:00"^^ . . . "1"^^ . "Jde o lokalizaci jednotliv\u00E9ho genu X.laevis. V intronu 13 byl zji\u0161t\u011Bn nov\u00FD typ polymorfie. Chyb\u00ED v\u0161ak publikace, pouze 1 odesl\u00E1na do tisku."@cs . "Identification of heterochromosomes in Xenopus laevis"@en . "0"^^ . "Identifikace heterochromoz\u00F3m\u016F Xenopus laevis" . "GA304/01/1125" . . "6"^^ . "6"^^ . . . . . . . "Neuvedeno."@en . "http://www.isvav.cz/projectDetail.do?rowId=GA304/01/1125"^^ . . . . "0"^^ .