MACNBR   00242
MUSEO ARGENTINO DE CIENCIAS NATURALES "BERNARDINO RIVADAVIA"
Unidad Ejecutora - UE
artículos
Título:
Cytogenetics of three species of Brachistosternus Pocock from Argentina (Scorpiones, Bothriuridae)
Autor/es:
RODRÍGUEZ-GIL SERGIO GUSTAVO; OJANGUREN-AFFILASTRO ANDRÉS ALEJANDRO; BARRAL LEONEL; SCIOSCIA CRISTINA LUISA; MOLA LILIANA MARÍA
Revista:
JOURNAL OF ARACHNOLOGY
Editorial:
Allen Press
Referencias:
Año: 2009 vol. 37 p. 331 - 331
ISSN:
0161-8202
Resumen:
Meiotic studies on three phylogenetically distant species of genus Brachistosternus Pocock from Argentina were carried out. Brachistosternus ferrugineus Thorell 1876, belonging to subgenus Ministernus Francke 1985 and two species of subgenus Leptosternus Maury 1973: B. montanus Roig-Alsina 1977 (of the Andean group of species) and two morphologically different populations of B. pentheri Mello-Leitão 1931 (of the plain group of species) were analysed. Brachistosternus ferrugineus, B. montanus, and one population of B. pentheri have 2n=46, n=23. The typical populations of B. pentheri have n=21. All the species showed achiasmatic meiosis, absence of heteromorphic bivalents, and bibrachial and monobrachial chromosomes of different sizes.