| General information |
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Monopterus albus (Zuiew, 1793) |
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| Common name | Asian swamp eel, Rice swampeel |
| Synonyms |
Muraena alba Zuiew, 1793 Fluta alba (Zuiew, 1793) Monopterus alba (Zuiew, 1793) Synbranchus grammicus Cantor, 1842 Gymnotus albus (Zuiew, 1789) Monopterus javanensis Lacepede, 1800 Symbranchus grammicus Cantor, 1842 Ophicardia phayriana McClelland, 1844 Ophicardia phyariana McClelland, 1844 |
| IUCN Red List status (2014) |
Least Concern (LC) |
| Habitat |
Freshwater |
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Euteleostei; Neoteleostei; Acanthomorpha; Acanthopterygii; Percomorpha; Synbranchiformes; Synbranchidae. |
| Geographical distribution |
India; China; Japan; Indonesia; Malaysia; Philippines; Thailand; Taiwan; South Korea; Vietnam; Myanmar; Hong Kong; Laos; Cambodia; Australia; USA; Hawaii |
| Occurrence |
native: India; native: China; native: Japan; native: Indonesia; native: Malaysia; native: Philippines; native: Thailand; native: Taiwan; native: South Korea; native: Vietnam; native: Myanmar; native: Hong Kong; native: Laos; native: Cambodia; native: Australia; introduced: USA; introduced: Hawaii |
| Importance |
Food/ornamental |
| Karyological information |
| Record 1 |
| Geographical area of study |
Guwahati, Assam, India |
| Source of chromosomes |
Kidney |
| Number of specimens with sex |
7 |
| Diploid chromosome number |
24 |
| Karyotype formula |
24A |
| Fundamental arm number |
24 |
| Chromosome length |
Not reported |
| Sex chromosome |
Not detected |
| Chromosome staining/banding/FISH |
Nil |
| Reference |
Rishi KK, Haobam MS (1984). Karyotypic Study on Two Freshwater Mud Eels. Proceedings of 4th All India Congress of Cytology and Genetics In: Perspectives in Cytology and genetics, (Eds. G.K. Manna and U.Sinha) Hindasia publishers, New Delhi, 4: 429-432. |
| Record 2 |
| Geographical area of study |
Bangkok, Thailand. |
| Source of chromosomes |
Gill and kidney cells. |
| Number of specimens with sex |
10 |
| Diploid chromosome number |
24 |
| Karyotype formula |
24a |
| Fundamental arm number |
24 |
| Chromosome length |
- |
| Sex chromosome |
- |
| Chromosome staining/banding/FISH |
Large DAPI- and PI-positive bands observed at pericentromeric regions of chromosome 9 and 4, respectively. Large C-positive heterochromatin bands coincide with PI-positive bands. 18S–28S rRNA genes detected at pericentromeric region of chromosome 4. TTAGGG repeats signals observed at telomeric ends of all chromosomes, but no interÂstitial signal. |
| Reference |
Suntronpong A, Thapana W, Twilprawat P, Prakhongcheep O, Somyong S, Muangmai N, Peyachoknagul S, Srikulnath K (2017). Karyological characterization and identification of four repetitive element groups (the 18S – 28S rRNA gene, telomeric sequences, microsatellite repeat motifs, Rex retroelements) of the Asian swamp eel (Monopterus albus). Comp. Cytogen., 11(3): 435–462. |
| Karyotype /Metaphase complement image |
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| Cross Link |