Chromosomal markers in Parodontidae: an analysis of new and reviewed data with phylogenetic inferences

Chromosomal markers in Parodontidae: an analysis of new and reviewed data with phylogenetic... The taxonomy of the family Parodontidae is confused, with many open questions regarding the most appropriate generic groupings. Studies on the organization, structure, composition, and in situ location of chromosomal features have led to consistent advances in the understanding of genome evolution. Among the species of Parodontidae, the consistent chromosomal divergences can be helpful in taxonomic classification, such as heteromorphic chromosome sex, karyotypic formulae, and number/location of the repetitive DNAs. Molecular analysis of repetitive sequences of satellite DNA and their physical mapping in the chromosomes of different species in a single group may be used to infer evolutionary divergence and cladistic grouping. In the present study, rDNA and the satellite DNA pPh2004 were mapped by fluorescent in situ hybridization on the chromosomes of some species of Parodontidae. These results were analyzed and reviewed together with other chromosomal markers and previously published data, to formulate inferences about the diversification of the genomes and propose a clustering of some Parodontidae species. This analysis indicated that the species Apareiodon affinis, Parodon moreirai, Parodon hilarii, Parodon nasus, and Parodon pongoensis have an apomorphic state for satellite DNA pPh2004 in Parodontidae in relation to previously studied species of Apareiodon. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Reviews in Fish Biology and Fisheries Springer Journals

Chromosomal markers in Parodontidae: an analysis of new and reviewed data with phylogenetic inferences

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Publisher
Springer Netherlands
Copyright
Copyright © 2010 by Springer Science+Business Media B.V.
Subject
Life Sciences; Zoology; Freshwater & Marine Ecology
ISSN
0960-3166
eISSN
1573-5184
D.O.I.
10.1007/s11160-010-9177-3
Publisher site
See Article on Publisher Site

Abstract

The taxonomy of the family Parodontidae is confused, with many open questions regarding the most appropriate generic groupings. Studies on the organization, structure, composition, and in situ location of chromosomal features have led to consistent advances in the understanding of genome evolution. Among the species of Parodontidae, the consistent chromosomal divergences can be helpful in taxonomic classification, such as heteromorphic chromosome sex, karyotypic formulae, and number/location of the repetitive DNAs. Molecular analysis of repetitive sequences of satellite DNA and their physical mapping in the chromosomes of different species in a single group may be used to infer evolutionary divergence and cladistic grouping. In the present study, rDNA and the satellite DNA pPh2004 were mapped by fluorescent in situ hybridization on the chromosomes of some species of Parodontidae. These results were analyzed and reviewed together with other chromosomal markers and previously published data, to formulate inferences about the diversification of the genomes and propose a clustering of some Parodontidae species. This analysis indicated that the species Apareiodon affinis, Parodon moreirai, Parodon hilarii, Parodon nasus, and Parodon pongoensis have an apomorphic state for satellite DNA pPh2004 in Parodontidae in relation to previously studied species of Apareiodon.

Journal

Reviews in Fish Biology and FisheriesSpringer Journals

Published: Oct 22, 2010

References

  • Karyotype diversity and fish conservation of southern field from South Brazil
    Artoni, RF; Vicari, MR; Almeida, MC; Moreira-Filho, O; Bertollo, LAC
  • Cytogenetic identification of invasive fish species following connections between hydrographic basins
    Bellafronte, E; Moreira-Filho, O; Vicari, MR; Artoni, RF; Bertollo, LAC; Margarido, VP
  • Characterization of invasive fish species in a river transposition region: evolutionary chromosome studies in the genus Hoplias (Characiformes, Erythrinidae)
    Blanco, DR; Lui, RL; Bertollo, LAC; Diniz, D; Moreira-Filho, O
  • Chromosomal localization of 5S rDNA genes in Leporinus Fish (Anostomidae, Characiformes)
    Martins, C; Galetti, PM
  • A phylogeny of the fish family Sparidae (porgies) inferred from mitochondrial sequence data
    Orrell, TM; Carpenter, KE

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