New developments in vertebrate cytotaxonomy III. Karyology of bony fishes: A review

Sola, Luciana; Cataudella, Stefano; Capanna, Ernesto

doi:10.1007/bf00135048

Cited by 73 publications

(49 citation statements)

References 215 publications

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“…In fact, in the more basal Actinopterygii as the Polypteriformes and Acipenseriformes, the number of chromosomes is usually larger, ranging from 120-260 for Acipenseridae (Fontana et al, 1998) to 120 for Polyodontidae and 56-68 for Lepisosteidae (see references in Sola et al, 1981). Although extant Acipenseriformes families may have originated from a tetraploid ancestor with a probable karyotype of 120-macro and micro-chromosomes, it is presumed that the tetraploidization occurred at an early stage during the evolution of the group (Birstein et al, 1997) from an ancestor with 60 chromosomes (Dingerkus & Howell, 1976;Carlson et al, 1982).…”

Section: Discussionmentioning

confidence: 99%

“…Several checklists on cytogenetic data have been published (Denton, 1973;Park, 1974;Ojima et al, 1976;Vasiliev, 1985;Sola et al, 1981;Oliveira et al, 1988;Porto et al, 1992;Klinkhardt et al, 1995). The most recent one (Arai, 2011) cover about 3,425 species/subspecies of agnathans, cartilaginous fish, actinopterygians (ray-finned fish) and sarcopterygians (lobe-finned fish), which represent barely 10.7% of recognized species at global level.…”

Section: Introductionmentioning

confidence: 99%

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Chromosome evolution in fishes: a new challenging proposal from Neotropical species

et al. 2014

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We present a database containing cytogenetic data of Neotropical actinopterygian fishes from Venezuela obtained in a single laboratory for the first time. The results of this study include 103 species belonging to 74 genera assigned to 45 families and 17 out of the 40 teleost orders. In the group of marine fishes, the modal diploid number was 2n=48 represented in 60% of the studied species, while in the freshwater fish group the modal diploid complement was 2n=54, represented in 21.21 % of the studied species. The average number of chromosomes and the mean FN were statistically higher in freshwater fish than in marine fish. The degree of diversification and karyotype variation was also higher in freshwater fish in contrast to a more conserved cytogenetic pattern in marine fish. In contrast to the assumption according to which 48 acrocentric chromosomes was basal chromosome number in fish, data here presented show that there is an obvious trend towards the reduction of the diploid number of chromosomes from values near 2n=60 with high number of biarmed chromosomes in more basal species to 2n=48 acrocentric elements in more derived Actinopterygii.Se presenta una base de datos que contiene los datos citogenéticos de peces Actinopterigios Neotropicales de Venezuela obtenidos por primera vez en un solo laboratorio. Los resultados de este estudio incluyen 103 especies pertenecientes a 74 géneros de 45 familias contenidas en 17 de los 40 órdenes de teleósteos. En el grupo de peces marinos, el número diploide modal fue 2n=48 representado en 60% de las especies estudiadas, mientras que en el grupo de peces de agua dulce el complemento diploide modal fue 2n=54, representado en el 21,21% de las especies estudiadas. El número de cromosomas y FN promedio fueron estadísticamente superiores en peces dulceacuícolas. El grado de diversificación y variación en el cariotipo también fue mayor en peces de agua dulce en contraste con un patrón citogenético más conservado en peces marinos. En contraposición a la suposición según la cual 48 cromosomas acrocentricos era el número cromosómico basal en los peces, los datos aquí presentados muestran que existe una evidente tendencia hacia la reducción del número de cromosomas desde valores cercanos a 2n=60 con alto número de cromosomas birrámeos en las especies más basales a 2n=48 elementos acrocéntricos en los actinopterigios más derivados.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Chromosome evolution in fishes: a new challenging proposal from Neotropical species

et al. 2014

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“…The diploid chromosome number varies from 2n=22-26, in some species of Nototheniidae (Ozouf-Costaz et al 1997), an Antarctic fish group, to 2n=240-260, in some anadromous Acipenseridae, which show several micro-chromosomes (Fontana et al 1997). Most marine fish studied have a diploid complement of 48 acrocentric chromosomes (Sola et al 1981, Klinkhardt et al 1995, Brum 1996.…”

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confidence: 99%

First Report of Chromosome Analysis of Saddleback Anemonefish, <i>Amphiprion polymnus</i> (Perciformes, Amphiprioninae), in Thailand

et al. 2012

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SummaryWe report the first chromosome analysis for the saddleback anemonefish (Amphiprion polymnus) from Thailand. Kidney cell samples were taken from 5 male and 5 female fish. The mitotic chromosome preparation was prepared by directly from kidney cells. Conventional and Ag-NOR staining techniques were applied to stain the chromosomes. The results showed that the diploid chromosome number of A. polymnus was 2n=48 and the fundamental numbers (NF) was 96 in both male and female. The types of chromosomes were 6 large submetacentric, 2 large acrocentric, 10 medium metacentric, 12 medium submetacentric, 6 medium acrocentric, 10 small metacentric, and 2 small submetacentric chromosomes. The region adjacent to the telomeres on the short arms of chromosome pair 21 showed clearly observable secondary constriction/NORs. The karyotype formula for A. polymnus could be deduced as:2n (48

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“…Data gathered in more recent chromosomes survays on fishes (OJIMA et al 1976;SoLA et al 1981) show that karyotypes with an arm number less than 48 are rather rare within Teleosts. Such karyotypes may have originated by loss of chromosomes (DENTON 1973) or by C-T (Centromere-Telomere) chromosome fusion between two acrocentric chromosomes giving rise to a new longer acrocentric element (Hsu et al 1975).…”

Section: Discussionmentioning

confidence: 99%

Karyotype ofCarapusacus(Brünnich, 1768) (Pisces, Carapidae)

Vitturi

Catalano

1988

Caryologia

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New developments in vertebrate cytotaxonomy III. Karyology of bony fishes: A review

Abstract: [No abstract available

Cited by 73 publications

References 215 publications

Chromosome evolution in fishes: a new challenging proposal from Neotropical species

Chromosome evolution in fishes: a new challenging proposal from Neotropical species

First Report of Chromosome Analysis of Saddleback Anemonefish, <i>Amphiprion polymnus</i> (Perciformes, Amphiprioninae), in Thailand

Karyotype ofCarapusacus(Brünnich, 1768) (Pisces, Carapidae)

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