Morphometric Traits, Karyotypic Features and Protein Polymorphism of the African Lungfish (Um Koro), Protopterus annectens annectens (Owen, 1839) and

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Date
2015-06-16
Authors
Amna Saad Omer, Khider
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UOFK
Abstract
This study is meant to review the prevalence of the African lungfish (Um koro) in Sudan, to study the genetic variation and protein polymorphism within and between different populations of lungfishes. Fourty cocoons containing adults of the African lungfish Protopterus annectens annectens (Owen, 1839) were collected from dry ponds of Khor Al- Jogan in Northern Kordofan State. Five adult specimens of the African lungfish Protopterus aethiopicus aethiopicus (Heckel, 1851) were caught alive from the River Nile. Morphometric measurements, including the Standard Length, Depth, Distance Above Lateral Line, Distance Below Lateral Line, Peduncle Length and Peduncle Depth were taken. Measurements and ratios performed revealed that Protopterus aethiopicus aethiopicus is longer and bigger in size than Protopterus annectens annectens. The karyotypes of the two species were investigated, Protopterus annectens annectens was found to have a diploid number of chromosomes of 2n=34, while Protopterus aethiopicus aethiopicus showed a diploid number of 2n =28 chromosomes. The serum of the two lung fish species and of the garmout fish ( Claris lazera) were subjected to electrophoresis utilizing cellulose acetate paper and lipo-protein paper. Human serum was used as a molecular weight marker. The ^5;- globulin and ^7;- globulin of the serum protein appeared in the four specimens. An albumin band was clearly demonstrated for the molecular weight marker and for the garmout fish while no albumin band appeared in the electrophoresis result of the sera of the two lungfishes. Results were discussed against the available literature of the lungfishes. Conclusions and recommendations were drawn to help in direction of future research on lungfishes in Sudan.
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Morphometric Traits, Karyotypic Features and Protein Polymorphism of the African Lungfish (Um Koro), Protopterus annectens annectens (Owen, 1839) and
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