| General information |
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Agonostomus monticola (Bancroft, 1834) |
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| Common name | Mountain mullet |
| Synonyms |
- |
| IUCN Red List status (2014) |
Least Concern (LC) |
| Habitat |
Freshwater |
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Neoteleostei; Acanthomorphata; Ovalentaria; Mugilomorphae; Mugilidae. |
| Geographical distribution |
USA; Mexico; Colombia; Venezuela; Ecuador; Panama; Cuba; Jamaica; Puerto Rico; Costa Rica; Nicaragua; Haiti; Dominican Republic; Guatemala; Honduras; Aruba; Bahamas; Barbados; Belize; Cayman Islands; Curaçao Island; El Salvador; Guadeloupe; Martinique; Trinidad and Tobago; Turks and Caicos Islands; Virgin Islands (USA) |
| Occurrence |
native: USA; native: Mexico; native: Colombia; native: Venezuela; native: Ecuador; native: Panama; native: Cuba; native: Jamaica; native: Puerto Rico; native: Costa Rica; native: Nicaragua; native: Haiti; native: Dominican Republic; native: Guatemala; native: Honduras; native: Aruba; native: Bahamas; native: Barbados; native: Belize; native: Cayman Islands; native: Curaçao Island; native: El Salvador; native: Guadeloupe; native: Martinique; native: Trinidad and Tobago; native: Turks and Caicos Islands; native: Virgin Islands (USA) |
| Importance |
- |
| Remarks |
- |
| Karyological information |
| Record 1 |
| Geographical area of study |
Venezuela. |
| Source of chromosomes |
Kidney tissue. |
| Number of specimens with sex |
|
| Diploid chromosome number |
48 |
| Karyotype formula |
2st+46a |
| Fundamental arm number |
50 |
| Chromosome length |
|
| Sex chromosome |
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| Chromosome staining/banding/FISH |
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| Reference |
Nirchio M, Rossi AR, Foresti F, Oliveira C (2014). Chromosome evolution in fishes: a new challenging proposal from Neotropical species. Neotropical Ichthyology, 12(4): 761-770. |
| Record 2 |
| Geographical area of study |
Changuinola River, Bocas del Toro, Panama and La Trilla River, Aragua State, Venezuela. |
| Source of chromosomes |
Cephalic kidney cells. |
| Number of specimens with sex |
27 (6 from Panama; 21 from Venezuela). |
| Diploid chromosome number |
48 |
| Karyotype formula |
46a+2st |
| Fundamental arm number |
- |
| Chromosome length |
- |
| Sex chromosome |
No karyotype differences between the sexes and geographical isolates. |
| Chromosome staining/banding/FISH |
Ag-NORs found terminally located on short arms of chromosomes 24. C-banding revealed heterochromatic regions at centromere of all chromosomes. CMA3 stained signals as well as bright FISH signals of 18S rDNA probe corresponded to Ag-NORs both in number and morphology. FISH signals with 5S rDNA probe produced paracentromeric signals in a medium-sized acrocentric chromosome pair. |
| Reference |
Nirchio M, Oliveira C, Ferreira I. A, Martins C, Rossi A.R, Sola L (2009). Classical and molecular cytogenetic characterization of Agonostomus monticola, a primitive species of Mugilidae (Mugiliformes). Genetica, 135(1), 1-5. |
| Cross Link |