Karyotype, C-banding and AgNORs of two endemic leuciscine fish, Pseudophoxinus crassus (Ladiges, 1960) and P. hittitorum Freyhof & Özulug, 2010 (Teleostei, Cyprinidae)
The genus Pseudophoxinus Bleeker, 1860 is found in a wide range of habitats in central Anatolia, but it is not well known from a cytogenetic aspect. In this study the first karyotypic description of the spring minnows Pseudophoxinus crassus (Ladiges, 1960) and P. hittitorum Freyhof & Özulug,...
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doaj-b509c80b3f194d90bee482567486143e2020-11-24T22:53:21ZengPensoft PublishersComparative Cytogenetics1993-07711993-078X2014-10-018424925710.3897/CompCytogen.v8i4.76234205Karyotype, C-banding and AgNORs of two endemic leuciscine fish, Pseudophoxinus crassus (Ladiges, 1960) and P. hittitorum Freyhof & Özulug, 2010 (Teleostei, Cyprinidae)Sevgi UnalMuhammet GaffarogluMuradiye Karasu AyataEsref YükselThe genus Pseudophoxinus Bleeker, 1860 is found in a wide range of habitats in central Anatolia, but it is not well known from a cytogenetic aspect. In this study the first karyotypic description of the spring minnows Pseudophoxinus crassus (Ladiges, 1960) and P. hittitorum Freyhof & Özulug, 2010 by means of conventional methods (Giemsa staining, C-banding, silver nitrate impregnation (Ag-NORs)) was performed. Both species are endemic and have restricted distributions in Central Anatolia. P. crassus and P. hittitorum have the same diploid chromosome number, 2n = 50, patterns of distribution of constitutive heterochromatin (CH), and localization of nucleolus organizer regions (NORs), but differ in their karyotypic formulae (KFs). The C-banding technique revealed clear pericentromeric blocks of CH in many chromosomes; Ag-NORs treatment revealed consistent positive signals at the end of the short arms of a submetacentric chromosome pair, likely homologous in both species. The karyotypic differences found between these species can be used for their taxonomical study.http://compcytogen.pensoft.net/lib/ajax_srv/article_elements_srv.php?action=download_pdf&item_id=4205 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Sevgi Unal Muhammet Gaffaroglu Muradiye Karasu Ayata Esref Yüksel |
spellingShingle |
Sevgi Unal Muhammet Gaffaroglu Muradiye Karasu Ayata Esref Yüksel Karyotype, C-banding and AgNORs of two endemic leuciscine fish, Pseudophoxinus crassus (Ladiges, 1960) and P. hittitorum Freyhof & Özulug, 2010 (Teleostei, Cyprinidae) Comparative Cytogenetics |
author_facet |
Sevgi Unal Muhammet Gaffaroglu Muradiye Karasu Ayata Esref Yüksel |
author_sort |
Sevgi Unal |
title |
Karyotype, C-banding and AgNORs of two endemic leuciscine fish, Pseudophoxinus crassus (Ladiges, 1960) and P. hittitorum Freyhof & Özulug, 2010 (Teleostei, Cyprinidae) |
title_short |
Karyotype, C-banding and AgNORs of two endemic leuciscine fish, Pseudophoxinus crassus (Ladiges, 1960) and P. hittitorum Freyhof & Özulug, 2010 (Teleostei, Cyprinidae) |
title_full |
Karyotype, C-banding and AgNORs of two endemic leuciscine fish, Pseudophoxinus crassus (Ladiges, 1960) and P. hittitorum Freyhof & Özulug, 2010 (Teleostei, Cyprinidae) |
title_fullStr |
Karyotype, C-banding and AgNORs of two endemic leuciscine fish, Pseudophoxinus crassus (Ladiges, 1960) and P. hittitorum Freyhof & Özulug, 2010 (Teleostei, Cyprinidae) |
title_full_unstemmed |
Karyotype, C-banding and AgNORs of two endemic leuciscine fish, Pseudophoxinus crassus (Ladiges, 1960) and P. hittitorum Freyhof & Özulug, 2010 (Teleostei, Cyprinidae) |
title_sort |
karyotype, c-banding and agnors of two endemic leuciscine fish, pseudophoxinus crassus (ladiges, 1960) and p. hittitorum freyhof & özulug, 2010 (teleostei, cyprinidae) |
publisher |
Pensoft Publishers |
series |
Comparative Cytogenetics |
issn |
1993-0771 1993-078X |
publishDate |
2014-10-01 |
description |
The genus Pseudophoxinus Bleeker, 1860 is found in a wide range of habitats in central Anatolia, but it is not well known from a cytogenetic aspect. In this study the first karyotypic description of the spring minnows Pseudophoxinus crassus (Ladiges, 1960) and P. hittitorum Freyhof & Özulug, 2010 by means of conventional methods (Giemsa staining, C-banding, silver nitrate impregnation (Ag-NORs)) was performed. Both species are endemic and have restricted distributions in Central Anatolia. P. crassus and P. hittitorum have the same diploid chromosome number, 2n = 50, patterns of distribution of constitutive heterochromatin (CH), and localization of nucleolus organizer regions (NORs), but differ in their karyotypic formulae (KFs). The C-banding technique revealed clear pericentromeric blocks of CH in many chromosomes; Ag-NORs treatment revealed consistent positive signals at the end of the short arms of a submetacentric chromosome pair, likely homologous in both species. The karyotypic differences found between these species can be used for their taxonomical study. |
url |
http://compcytogen.pensoft.net/lib/ajax_srv/article_elements_srv.php?action=download_pdf&item_id=4205 |
work_keys_str_mv |
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