Chromosomes of Fish

Chrisman, C. L.; Blacklidge, K. H.; Riggs, Penny K.

doi:10.1016/b978-0-12-039234-6.50012-4

Cited by 2 publications

(2 citation statements)

References 76 publications

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“…Most fishes possess between 40 and 60 chromosomes, with 48 being a generally accepted number for a common ancestral fish (Chrisman et al ., 1990). Therefore, in evolutionary terms, the silver crucian carp is a tetraploid (2 n = 100) or hexaploid (3 n = 150) fish species.…”

Section: Discussionmentioning

confidence: 99%

Genetic analysis of offspring from intra‐ and interspecific crosses of Carassius auratus gibelio by chromosome and RAPD analysis

Tóth

Várkonyi

Hidas

et al. 2005

Journal of Fish Biology

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The ploidy of silver crucian carp Carassius auratus gibelio individuals, originating from nine natural habitats of Hungary, was estimated by erythrocyte nucleus area analysis. On the basis of DNA polymorphism, the genetic homogeneity or heterogeneity and the chromosome number of different offspring derived from the crossing of triploid and diploid populations and of two types of silver crucian carp females with other cyprinid males (Cyprinus carpio, Carassius carassius, Carassius auratus and Barbus conchonius) were determined. The results of chromosome and RAPD analysis demonstrated that diploid females could reproduce sexually with silver crucian carp and other cyprinid males and that the offspring of intra-and interspecific crosses contained the paternal DNA. Triploid females usually reproduced by gynogenesis and their offspring were clones, however, in very rare cases paternal genes were actually transmitted (i.e. paternal leakage) to the offspring and the progeny were triploid interspecific hybrids. RAPD analysis showed that while the paternal DNA appeared in the offspring, the maternal phenotype was strongly expressed. # 2005 The Fisheries Society of the British Isles

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Section: Discussionmentioning

confidence: 99%

Genetic analysis of offspring from intra‐ and interspecific crosses of Carassius auratus gibelio by chromosome and RAPD analysis

Tóth

Várkonyi

Hidas

et al. 2005

Journal of Fish Biology

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“…The topic of fish chromosomes might easily fill volumes, so this article's focus has been restricted to a broad overview of fish cytogenetics and how it can be used to further aquaculture and fish biotechnology. Current genetic research uses fish cytogenetics for a wide range of purposes, including studies into the evolutionary history of fishes, environmental toxicology, experimental ploidy manipulation, and transgenic fish production [1]. Cytogenetic techniques like taxonomic studies and karyological analyses are essential to providing fundamental knowledge on fish breeding programmes like inter-specific hybridization, chromosome manipulation techniques, and genetic improvement of commercial fish [2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Karyological Study of Fresh Water Fish Channa Punctatus with G and NOR Banding Pattern

2024

Int Internal Med J

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Karyotype analysis is the most classical method in the field of cytogenetics. It includes the determination of 2n chromosome numbers, relative length of chromosomes, centromeric formula, centromeric index, total chromatin length, etc. It describes a technique for taking pictures of a stained preparation in which the chromosomes are arranged in regular centromere patterns. In the present study, the significant karyotype of Channa punctatus were observed by analysing the metacentric, submetacentric, subtelocentric, and telocentric chromosomes. Among these the diploid chromosome number was 32 which were identified to be 14-metacentric, 12- submetacentric and 7- sub telocentric and 7- telocentric chromosomes. Thus, such studies shall be promoted to extend the analysis on the physiological health of fishes in changing environment

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Chromosomes of Fish

Cited by 2 publications

References 76 publications

Genetic analysis of offspring from intra‐ and interspecific crosses of Carassius auratus gibelio by chromosome and RAPD analysis

Genetic analysis of offspring from intra‐ and interspecific crosses of Carassius auratus gibelio by chromosome and RAPD analysis

Karyological Study of Fresh Water Fish Channa Punctatus with G and NOR Banding Pattern

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