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Resolution of sex chromosome constitution by genomic in situ hybridization and fluorescence in situ hybridization with (TTAGG)(n) telomeric probe in some species of Lepidoptera

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    0022870 - ENTU-I 2006 RIV DE eng J - Journal Article
    Yoshido, A. - Marec, František - Sahara, K.
    Resolution of sex chromosome constitution by genomic in situ hybridization and fluorescence in situ hybridization with (TTAGG)(n) telomeric probe in some species of Lepidoptera.
    [Rozlišení konstituce pohlavních chromosomů pomocí GISH a telomerické FISH u některých druhů motýlů.]
    Chromosoma. Roč. 114, č. 3 (2005), s. 193-202. ISSN 0009-5915. E-ISSN 1432-0886
    R&D Projects: GA AV ČR(CZ) IAA6007307
    Grant - others:Japan Society for the Promotion of Science(JP) 15380227; Insect Technology project of the Ministry of Agriculture, Forestry and Fisheries in Japan(JP) 2013
    Institutional research plan: CEZ:AV0Z50070508
    Keywords : Antheraea yamamai
    Subject RIV: EB - Genetics ; Molecular Biology
    Impact factor: 3.340, year: 2005

    We have developed a simple method to resolve the sex chromosome constitution in females of Lepidoptera by using a combination of genomic in situ hybridization (GISH) and fluorescence in situ hybridization with (TTAGG)n telomeric probe (telomere-FISH). In pachytene sex chromosomes, GISH differentiated W heterochromatin and telomere-FISH detected the chromosome ends. With this method we showed that Antheraea yamamai has a W-Z sex chromosome pair. In Orgyia antiqua, we confirmed the presence of neo-W and neo-Z chromosomes. Orgyia thyellina females displayed a neo-ZW1W2 sex chromosome constitution. A neo-WZ1Z2 trivalent was found in females of Samia cynthia subsp. indet. Whereas S. c. walkeri showed a neo-W/neo-Z bivalent and S. c. ricini showed a Z univalent (a Z/ZZ system). The combination of GISH and telomere-FISH enabled us to acquire not only reliable information about sex chro

    Vyvinuli jsme jednoduchou metodu pro rozlišení konstituce pohlavních chromosomů u samic motýlů pomocí kombinace genomové in situ hybridizace (GISH) a fluorescenční in situ hybridizace s telomerickou sondou (TTAGG)n (telomerická FISH). GISH u pachytenních pohlavních chromosomů identifikovala heterochromatin chromosomu W a telomerická FISH detekovala konce chromosomů. Touto metodou jsme ukázali, že Antheraea yamamai má pár pohlavních chromosomů W-Z. U Orgyia antiqua jsme potvrdili přítomnost chromosomů neo-W a neo-Z. Samice Orgyia thyellina vykazovaly konstituci pohlavních chromosomů neo-ZW1W2. U samic Samia cynthia subsp. indet. byl zjištěn trivalent neo-WZ1Z2. Kdežto samice S. c. walkeri měly bivalent neo-W/neo-Z a samice S. c. ricini univalent chromosomu Z (systém Z/ZZ). Kombinace GISH a telomerické FISH nám umožnila nejen získat věrohodné informace o konstituci pohlavních chromosomů, ale i proniknout do evoluce pohlavních chromosomů motýlů.
    Permanent Link: http://hdl.handle.net/11104/0111578

     
     
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