Comparative cytogenetics of Neotropical cichlid fishes (Nannacara, Ivanacara and Cleithracara) indicates evolutionary reduction of diploid chromosome numbers

Abstract. A comparative cytogenetic analysis was carried out in five species of a monophyletic clade of neotropical Cichlasomatine cichlids, namely Cleithracara maronii Steindachner, 1881, Ivanacara adoketa (Kullander & Prada-Pedreros, 1993), Nannacara anomala Regan, 1905, N. aureocephalus Allga...

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Autores principales: Hodaňová, Lucie, Kalous, Lukáš, Musilová, Zuzana
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Pensoft Publishers 2014
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4205487/
https://www.ncbi.nlm.nih.gov/pubmed/25349669
http://dx.doi.org/10.3897/CompCytogen.v8i3.7279
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author Hodaňová, Lucie
Kalous, Lukáš
Musilová, Zuzana
author_facet Hodaňová, Lucie
Kalous, Lukáš
Musilová, Zuzana
author_sort Hodaňová, Lucie
collection PubMed
description Abstract. A comparative cytogenetic analysis was carried out in five species of a monophyletic clade of neotropical Cichlasomatine cichlids, namely Cleithracara maronii Steindachner, 1881, Ivanacara adoketa (Kullander & Prada-Pedreros, 1993), Nannacara anomala Regan, 1905, N. aureocephalus Allgayer, 1983 and N. taenia Regan, 1912. Karyotypes and other chromosomal characteristics were revealed by CDD banding and mapped onto the phylogenetic hypothesis based on molecular analyses of four genes, namely cyt b, 16S rRNA, S7 and RAG1. The diploid numbers of chromosomes ranged from 44 to 50, karyotypes were composed predominantly of monoarmed chromosomes and one to three pairs of CMA(3) signal were observed. The results showed evolutionary reduction in this monophyletic clade and the cytogenetic mechanisms (fissions/fusions) were hypothesized and discussed.
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spelling pubmed-42054872014-10-27 Comparative cytogenetics of Neotropical cichlid fishes (Nannacara, Ivanacara and Cleithracara) indicates evolutionary reduction of diploid chromosome numbers Hodaňová, Lucie Kalous, Lukáš Musilová, Zuzana Comp Cytogenet Research Article Abstract. A comparative cytogenetic analysis was carried out in five species of a monophyletic clade of neotropical Cichlasomatine cichlids, namely Cleithracara maronii Steindachner, 1881, Ivanacara adoketa (Kullander & Prada-Pedreros, 1993), Nannacara anomala Regan, 1905, N. aureocephalus Allgayer, 1983 and N. taenia Regan, 1912. Karyotypes and other chromosomal characteristics were revealed by CDD banding and mapped onto the phylogenetic hypothesis based on molecular analyses of four genes, namely cyt b, 16S rRNA, S7 and RAG1. The diploid numbers of chromosomes ranged from 44 to 50, karyotypes were composed predominantly of monoarmed chromosomes and one to three pairs of CMA(3) signal were observed. The results showed evolutionary reduction in this monophyletic clade and the cytogenetic mechanisms (fissions/fusions) were hypothesized and discussed. Pensoft Publishers 2014-08-08 /pmc/articles/PMC4205487/ /pubmed/25349669 http://dx.doi.org/10.3897/CompCytogen.v8i3.7279 Text en Lucie Hodaňová, Lukáš Kalous, Zuzana Musilová http://creativecommons.org/licenses/by/4.0 This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Hodaňová, Lucie
Kalous, Lukáš
Musilová, Zuzana
Comparative cytogenetics of Neotropical cichlid fishes (Nannacara, Ivanacara and Cleithracara) indicates evolutionary reduction of diploid chromosome numbers
title Comparative cytogenetics of Neotropical cichlid fishes (Nannacara, Ivanacara and Cleithracara) indicates evolutionary reduction of diploid chromosome numbers
title_full Comparative cytogenetics of Neotropical cichlid fishes (Nannacara, Ivanacara and Cleithracara) indicates evolutionary reduction of diploid chromosome numbers
title_fullStr Comparative cytogenetics of Neotropical cichlid fishes (Nannacara, Ivanacara and Cleithracara) indicates evolutionary reduction of diploid chromosome numbers
title_full_unstemmed Comparative cytogenetics of Neotropical cichlid fishes (Nannacara, Ivanacara and Cleithracara) indicates evolutionary reduction of diploid chromosome numbers
title_short Comparative cytogenetics of Neotropical cichlid fishes (Nannacara, Ivanacara and Cleithracara) indicates evolutionary reduction of diploid chromosome numbers
title_sort comparative cytogenetics of neotropical cichlid fishes (nannacara, ivanacara and cleithracara) indicates evolutionary reduction of diploid chromosome numbers
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4205487/
https://www.ncbi.nlm.nih.gov/pubmed/25349669
http://dx.doi.org/10.3897/CompCytogen.v8i3.7279
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