- What are the different varieties of Arowana?
- Where do Asian arowanas come from?
- Where can I find Asian arowana for karyotyping?
- What kind of fish is an arowana?
- What is the classification of Scleropages formosus?
- What is Pinoh arowana?
- How to determine the karyotype of Asian arowana hybrids?
- Are there different types of Scleropages?
- What kind of fish is Scleropages inscriptus?
- What is Scleropages formosus?
- Do Bangaloreans eat arowana fish?
- How many babies do Asian arowana have?
- Are arowanas monotypic or haplotypes?
- How many chromosomes are in the golden arowana reference genome?
- What is the genetic basis of colour variation in arowana?
- What does Scleropages mean in Greek?
- What is Scleropages inscriptus?
- What is the PMID for Scleropages inscriptus?
- What is the origin of the word Scleropages?
- What is the meaning of inscriptus?
- Is arowana a carnivore?
- Is there a reference genome of a golden female arowana?
- Is the arowana a good reference species for phylogenetic analysis?
- Is there a reference genome for the arowana?
- How many Hox clusters does an arowana fish have?
- How are the Hox genes predicted in the golden arowana genome assembly?
What are the different varieties of Arowana?
Classification There are four naturally occurring colour varieties for Asian Arowanas, namely Cross Back Golden from West Malaysia, Super Red from Indonesia’s West Kalimantan, Red Tail Golden from Indonesia Pekan Baru and the Green variety, which can be found in rivers of Malaysia, Indonesia, Myanmar and Thailand.
Where do Asian arowanas come from?
West Malaysia, Super Red from Indonesia’s West Kalimantan, Red Tail Golden from Indonesia Pekan Baru and the Green variety, which can be found in rivers of Malaysia, Indonesia, Myanmar and Thailand. Due to its popularity and great demand, Asian Arowanas have been fiercely hunted in its native habitat,
Where can I find Asian arowana for karyotyping?
Tissue samples for karyotyping were collected from six adult male and six adult female Asian arowana hybrids at the Qian Hu Fish Farm. These fish were F1 offspring individuals produced by crossing chili red and Malaysian golden brooders. They have been pit-tagged upon maturation and used as brooders on a regular basis by the farm.
What kind of fish is an arowana?
The Asian arowana (Scleropages formosus) is an ancient freshwater fish species from the Osteoglossidae family. It is a territorial and mouth-brooding fish, which inhabits slow-moving rivers and lakes within forests in Southeast Asia. It produces a small number (20–90 eggs/spawning) but very big eggs (diameter: ∼2 cm).
What is the classification of Scleropages formosus?
In 2003, a study proposed breaking S. formosus into four separate species. This classification was based on both morphometrics and a phylogenetic analysis using the cytochrome b gene, and includes these species: Scleropages formosus was redescribed to include the strain known as the green arowana.
What is Pinoh arowana?
In addition, two silvery-coloured forms known as the ‘grey tail silver’ or ‘Pinoh arowana’, and ‘yellow tail silver’, are collected from the Schwaner mountain range between west and central Kalimantan provinces, and central and south Kalimantan provinces in Indonesian Borneo, respectively. These populations were described as S.
How to determine the karyotype of Asian arowana hybrids?
In order to determine the karyotype of Asian arowana hybrids, ten good male and female metaphase plates from each of the six males and six females were used. The classification of chromosomes followed the method of Levan and colleagues 90. Submetacentrics (SM) were described as two-arm chromosomes and acrocentrics (A) as one-arm chromosomes.
Are there different types of Scleropages?
Some sources differentiate these varieties into multiple species, while others consider the different strains to belong to a single species, Scleropages formosus. They have several other common names, including Asian bonytongue, dragon fish, and a number of names specific to different varieties.
What kind of fish is Scleropages inscriptus?
Scleropages inscriptus, a new fish species from the Tananthayi or Tenasserim River basin, Malay Peninsula of Myanmar (Osteoglossidae: Osteoglossiformes). The types of Osteoglossum formosum Müller & Schlegel, 1840 (Teleostei, Osteoglossidae).
What is Scleropages formosus?
Scleropages formosus was redescribed to include the strain known as the green arowana. The gold crossback, which was not part of the study, was included in this species by default, though it was suspected to be closely related to S. aureus. Scleropages macrocephalus described the silver Asian arowana.
Do Bangaloreans eat arowana fish?
^ “Superstitious Bangaloreans eat Arowana fish”. Hindustan Times. Archived from the original on May 17, 2006. Retrieved 10 May 2006. ^ a b Kottelat, M (2011).
How many babies do Asian arowana have?
Unlike most fish, the Asian arowana reaches sexual maturity relatively late, after 3–4 yr. The females produce few eggs, 30-100, which are quite large. After the eggs are fertilized, the Asian arowana exhibits great parental care with paternal mouthbrooding.
Are arowanas monotypic or haplotypes?
They are considered monotypic, consisting of closely related haplotypes based on color. The ancestor of the Australian arowanas: S. jardinii and S. leichardti, diverged from the ancestor of the Asian arowanas about 140 million years ago, during the Early Cretaceous period.
How many chromosomes are in the golden arowana reference genome?
In an attempt to identify the potential sex chromosomes, cleaned reads from the amplified, microdissected DNA were mapped to the chromosome-level golden arowana reference genome with 25 chromosomes (as the other two genome assemblies were only at pseudo-scaffold level).
What is the genetic basis of colour variation in arowana?
Differential gene expression among three varieties provides insights into the genetic basis of colour variation. A potential heterogametic sex chromosome is identified in the female arowana karyotype, suggesting that the sex is determined by a ZW/ZZ sex chromosomal system.
What does Scleropages mean in Greek?
Scleropages: from the Ancient Greek σκληρός (skleros), meaning ‘hard’, and pages (Latin derivation?), meaning ‘leaves’, perhaps in reference to the large body scales. formosus: from the Latin formosus, meaning ‘beautiful, handsome’.
What is Scleropages inscriptus?
Scleropages inscriptus, a new species of bony-tongue fishes, is described from the Tenasserim or Tananthayi River basin on the Indian Ocean coast of peninsular Myanmar.
What is the PMID for Scleropages inscriptus?
PMID 26171532. ^ Roberts, T.R. (2012): Scleropages inscriptus, a new fish species from the Tananthayi or Tenasserim River basin, Malay Peninsula of Myanmar (Osteoglossidae: Osteoglossiformes). aqua, International Journal of Ichthyology, 18 (2): 113-118. ^ Pusey, B.J.; Fisher, C.; Maclaine, J. (2016).
What is the origin of the word Scleropages?
Etymology. Scleropages: from the Ancient Greek σκληρός (skleros), meaning ‘hard’, and pages (Latin derivation?), meaning ‘leaves’, perhaps in reference to the large body scales. inscriptus: from the Latin inscriptus, meaning ‘inscribed’, in reference to the distinctive markings on the scales and facial bones.
What is the meaning of inscriptus?
inscriptus: from the Latin inscriptus, meaning ‘inscribed’, in reference to the distinctive markings on the scales and facial bones. This species’ distribution is unclear although individuals from the aquarium trade are said to have been collected in the Tenasserim river basin in Tananthayi Region, southern Myanmar.
Is arowana a carnivore?
This unique fish has several behaviors that you may need to know, especially if you want to put it in your aquarium. As it is included as an Osteoglossids fish, Arowana has a different eating style. Different from most of the fishes that eat plankton, insects and sometimes tiny bird as well. Thus it is considered as carnivorous fish.
Is there a reference genome of a golden female arowana?
In this study, we have generated a high quality, chromosome-level reference genome of a golden female arowana (Fig. 1A), in addition to draft genome sequences of red and green arowana varieties (Fig. 1B,C).
Is the arowana a good reference species for phylogenetic analysis?
The availability of a high quality reference genome of the arowana provided us the opportunity to analyze the branching order of the three groups using a phylogenomic approach.
Is there a reference genome for the arowana?
It represents an ancient lineage of teleosts: the Osteoglossomorpha. Here, we provide a high-quality chromosome-level reference genome of a female golden-variety arowana using a combination of deep shotgun sequencing and high-resolution linkage mapping. In addition, we have also generated two draft genome assemblies for the red and green varieties.
How many Hox clusters does an arowana fish have?
The arowana genome retains the full complement of eight Hox clusters unlike the African butterfly fish ( Pantodon buchholzi ), another bonytongue fish, which possess only five Hox clusters. Differential gene expression among three varieties provides insights into the genetic basis of colour variation.
How are the Hox genes predicted in the golden arowana genome assembly?
Hox genes were predicted in the golden arowana genome assembly based on homology to known Hox genes. The predictions were manually inspected and refined. Sequencing gaps within the Hox clusters, particularly those between hoxb5a and hoxb3a, and evx2 and hoxd12a were filled by PCR amplification and Sanger sequencing.