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Publication
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| Title of Article |
Chromosomes of Asian Cyprinid Fishes: Genomic Differences in Conserved Karyotypes of 'Poropuntiinae' (Teleostei, Cyprinidae) |
| Date of Acceptance |
19 April 2023 |
| Journal |
| Title of Journal |
Animals |
| Standard |
SCOPUS |
| Institute of Journal |
Journal by MDPI |
| ISBN/ISSN |
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| Volume |
18 |
| Issue |
8 |
| Month |
April |
| Year of Publication |
2023 |
| Page |
1415 |
| Abstract |
The representatives of cyprinid lineage ‘Poropuntiinae’ with 16 recognized genera and
around 100 species form a significant part of Southeast Asian ichthyofauna. Cytogenetics are valuable
when studying fish evolution, especially the dynamics of repetitive DNAs, such as ribosomal
DNAs (5S and 18S) and microsatellites, that can vary between species. Here, karyotypes of seven
‘poropuntiin’ species, namely Cosmochilus harmandi, Cyclocheilichthys apogon, Hypsibarbus malcomi, H.
wetmorei, Mystacoleucus chilopterus, M. ectypus, and Puntioplties proctozysron occurring in Thailand
were examined using conventional and molecular cytogenetic protocols. Variable numbers of uniand
bi-armed chromosomes indicated widespread chromosome rearrangements with a stable diploid
chromosome number (2n) of 50. Examination with fluorescence in situ hybridization using major and
minor ribosomal probes showed that Cosmochilus harmandi, Cyclocheilichthys apogon, and Puntioplites
proctozystron all had one chromosomal pair with 5S rDNA sites. However, more than two sites were found in Hypsibarbus malcolmi, H. wetmorei, Mystacoleucus chilopterus, and M. ectypus. The number
of chromosomes with 18S rDNA sites varied amongst their karyotypes from one to three; additionally,
comparative genomic hybridization and microsatellite patterns varied among species. Our
results reinforce the trend of chromosomal evolution in cyprinifom fishes, with major chromosomal
rearrangements, while conserving their 2n. |
| Keyword |
Ag-NOR; ribosomal DNA; repetitive DNAs; comparative genomic hybridization |
| Author |
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| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ตีพิมพ์แล้ว |
| Level of Publication |
นานาชาติ |
| citation |
false |
| Part of thesis |
true |
| Attach file |
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| Citation |
0
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Journal Publication
ไทย