| one publication added to basket [56541] | Conventional karyotype and nucleolar organiser regions of the toadfish Halobatrachus didactylus (Schneider, 1801) (Pisces: Batrachoididae)
Palazón, J.L.; Nirchio, M.; Sarasquete, C. (2003). Conventional karyotype and nucleolar organiser regions of the toadfish Halobatrachus didactylus (Schneider, 1801) (Pisces: Batrachoididae). Sci. Mar. (Barc.) 67(4): 445-449. https://dx.doi.org/10.3989/scimar.2003.67n4445
In: Scientia Marina (Barcelona). Consejo Superior de Investigaciones Científicas. Institut de Ciènces del Mar: Barcelona. ISSN 0214-8358; e-ISSN 1886-8134, more
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| Keywords |
Biology > Genetics > Cytogenetics
Karyotypes
Halobatrachus didactylus (Bloch & Schneider, 1801) [WoRMS]
Marine/Coastal |
| Authors | | Top |
- Palazón, J.L.
- Nirchio, M.
- Sarasquete, C.
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| Abstract |
For this report, we studied the conventional karyotype and the NOR-bearing chromosomes in the toadfish Halobatrachus didactylus. We found a karyotype of 46 chromosomes made up of 8 metacentric, 12 submetacentric, and 26 acrocentric elements (FN = 66). No heteromorphic sex chromosomes were observed in the species. Metacentric chromosomes were easily classified as homologous pairs according to their morphology and L/S ratio. The rest of the chromosomes could not be accurately classified as homologous pairs because differences in chromosome size and L/S ratio were too slight between adjacent pairs within a size-ranged series. A single pair of NOR-bearing chromosomes was found. Active NORs were terminally located in a submetacentric pair of chromosomes. |
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