General information |
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| Lates calcarifer (Bloch,1790) | ||
| Common name | Barramundi | |
| Synonyms |
Holocentrus calcarifer Bloch, 1790 Coius vacti Hamilton, 1822 Pseudolates cavifrons Alleyne & Macleay, 1877 Lates darwiniensis Macleay, 1878 |
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| IUCN Red List status (2014) | Not Reported |
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| Habitat | Saltwater |
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| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Euteleostei; Neoteleostei; Acanthomorpha; Acanthopterygii; Percomorpha; Perciformes; Latidae. |
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| Geographical distribution | India; China; Japan; Indonesia; Bangladesh; Malaysia; Sri Lanka; Pakistan; Philippines; Singapore; Thailand; Taiwan; Vietnam; Israel; Myanmar; Hong Kong; Cambodia; Brunei; Australia; Papua New Guinea; Fiji; Marshall Islands; New Caledonia; Solomon Islands; Vanuatu |
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| Occurrence | Native: India, China, Japan, Indonesia, Bangladesh, Malaysia, Sri Lanka, Pakistan, Philippines, Singapore, Thailand, Taiwan, Vietnam, Myanmar, Hong Kong, Cambodia, Brunei, Australia, Papua New Guinea, Marshall Islands, New Caledonia, Solomon Islands, Vanuatu Not established: Israel Questionable: Fiji |
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| Importance | ||
| Remarks | Nil |
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Karyological information |
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| Geographical area of study | Marine Aquaculture Center, St John’s Island,Singapore | |
| Source of chromosomes | Cell culture |
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| Number of specimens with sex | ||
| Diploid chromosome number | 48 |
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| Karyotype formula | 2m+2sm+22st+22a |
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| Fundamental arm number | - |
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| Chromosome length | Not reported |
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| Sex chromosome | Not reported |
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| Chromosome staining/banding/FISH | Individual karyotypes contained variable numbers (2–10) of additional micro chromosomes, suggested as B-chromosomes. CMA3 staining showed presence of a GC-rich block near pericentromeric chromatin in most chromosomes. All chromosome spreads had atleast two GC-rich B-chromosomes, whereas AT-rich B-chromosomes were detected in 60% chromosome spreads. |
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| Reference(s) |
Kuznetsova IS, Thevasagayam NM, Sridatta PS, Komissarov AS, Saju JM, Ngoh SY, Jiang J, Shen X and Orbán L. (2014). Primary analysis of repeat elements of the Asian seabass (Lates calcarifer) transcriptome and genome. Front Genet. 5: 1-14, Article 223. |
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| Karyology remarks | 5S rDNA signal was located on single chromosome pair, whereas 18S rDNA was found on two pairs of chromosomes. |
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