C-banding karyotype and NORs analyse in eight species ofBarypeithesDuval from Central Europe (Coleoptera, Curculionidae, Entiminae)

Autor:	Milada Holecová, Maria Rozek, Lachowska Dorota
Rok vydání:	2005
Předmět:	B chromosome medicine.medical_specialty Heterochromatin Cytogenetics Zoology Mitotic prophase Karyotype Biology Prophase Meiosis Botany Genetics medicine General Agricultural and Biological Sciences Metaphase
Zdroj:	Caryologia. 58:274-280
ISSN:	2165-5391 0008-7114
Popis:	Karyotypes of eight species belonging to the genus Barypeithes were studied using standard Giemsa staining, AgNOR- and C-banding techniques.The species studied share almost the same chromosome number 2n=22 (10+Xyp) with exception of endemic Barypeithes liptoviensis which possesses 26 chromosomes (12 + Xyp). The karyotype of Barypeithes pellucidus is characterized by the presence of one to six B chromosomes clearly distin- guishable from the regular members of the complement. In all examined species heterochromatin visualized by C- banding, is found to be limited almost to the pericentromeric region of all chromosomes with differences in their amount. The wide C-bands visible during mitotic metaphase are observed in five species whereas a small blocks of heterochromatin visible during mitotic prophase are found in three species. Also the one Ag-stained NOR situated in the sex chromosomes is visible during mitotic and meiotic prophases.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::50309bdc5507f19a96d256f3c98b8724 https://doi.org/10.1080/00087114.2005.10589463 Zobrazit plný text záznamu