Meiotic studies in Brachistosternus alienus (Scorpiones; Bothriuridae)

Brachistosternus Pocock 1893 is the most diverse genus of the scorpion family Bothriuridae. Only four species of the genus have been cytogenetically analyzed so far. We report herein the cytogenetic analysis of Brachistosternus alienus Lönnberg 1898 from Comallo (Río Negro province, Argentina). This...

Descripción completa

Detalles Bibliográficos
Publicado: 2013
Materias:
Cytogenetics
DAPI staining
karyotype
meiosis
scorpion
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01618202_v41_n2_p222_Adilardi
http://hdl.handle.net/20.500.12110/paper_01618202_v41_n2_p222_Adilardi
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_01618202_v41_n2_p222_Adilardi
record_format dspace
spelling paper:paper_01618202_v41_n2_p222_Adilardi2023-06-08T15:13:32Z Meiotic studies in Brachistosternus alienus (Scorpiones; Bothriuridae) Cytogenetics DAPI staining karyotype meiosis scorpion Brachistosternus Pocock 1893 is the most diverse genus of the scorpion family Bothriuridae. Only four species of the genus have been cytogenetically analyzed so far. We report herein the cytogenetic analysis of Brachistosternus alienus Lönnberg 1898 from Comallo (Río Negro province, Argentina). This species is widely distributed in the Monte phytogeographic province, located in central and northern Argentine Patagonia. Meiotic cells of B. alienus from Comallo show 23 homomorphic achiasmatic bivalents. The karyotype of this species contains scarce AT-rich regions that may be associated with the heterochromatin of centromeric regions. Giacomozzi (1977) reports n = 14 for B. alienus from Chubut province. Unfortunately, it is not presently possible to determine if those specimens correspond to B. alienus or to a sympatric species, Brachistosternus angustimanus Ojanguren-Affilastro & Roig-Alsina 2001. These different chromosome numbers of the two populations analyzed may reflect the occurrence of a chromosomal polytypism in B. alienus, or they may characterize different species. © 2013 The American Arachnological Society. 2013 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01618202_v41_n2_p222_Adilardi http://hdl.handle.net/20.500.12110/paper_01618202_v41_n2_p222_Adilardi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Cytogenetics
DAPI staining
karyotype
meiosis
scorpion
spellingShingle Cytogenetics
DAPI staining
karyotype
meiosis
scorpion
Meiotic studies in Brachistosternus alienus (Scorpiones; Bothriuridae)
topic_facet Cytogenetics
DAPI staining
karyotype
meiosis
scorpion
description Brachistosternus Pocock 1893 is the most diverse genus of the scorpion family Bothriuridae. Only four species of the genus have been cytogenetically analyzed so far. We report herein the cytogenetic analysis of Brachistosternus alienus Lönnberg 1898 from Comallo (Río Negro province, Argentina). This species is widely distributed in the Monte phytogeographic province, located in central and northern Argentine Patagonia. Meiotic cells of B. alienus from Comallo show 23 homomorphic achiasmatic bivalents. The karyotype of this species contains scarce AT-rich regions that may be associated with the heterochromatin of centromeric regions. Giacomozzi (1977) reports n = 14 for B. alienus from Chubut province. Unfortunately, it is not presently possible to determine if those specimens correspond to B. alienus or to a sympatric species, Brachistosternus angustimanus Ojanguren-Affilastro & Roig-Alsina 2001. These different chromosome numbers of the two populations analyzed may reflect the occurrence of a chromosomal polytypism in B. alienus, or they may characterize different species. © 2013 The American Arachnological Society.
title Meiotic studies in Brachistosternus alienus (Scorpiones; Bothriuridae)
title_short Meiotic studies in Brachistosternus alienus (Scorpiones; Bothriuridae)
title_full Meiotic studies in Brachistosternus alienus (Scorpiones; Bothriuridae)
title_fullStr Meiotic studies in Brachistosternus alienus (Scorpiones; Bothriuridae)
title_full_unstemmed Meiotic studies in Brachistosternus alienus (Scorpiones; Bothriuridae)
title_sort meiotic studies in brachistosternus alienus (scorpiones; bothriuridae)
publishDate 2013
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01618202_v41_n2_p222_Adilardi
http://hdl.handle.net/20.500.12110/paper_01618202_v41_n2_p222_Adilardi
_version_ 1768543794870878208

Ejemplares similares