Nutrient digestibility studies in Heteropneustes fossilis (Bloch), Clarias batrachus (Linnaeus) and C. gariepinus (Burchell)

2003 ◽  
Vol 34 (14) ◽  
pp. 1247-1253 ◽  
Author(s):  
Nazura Usmani ◽  
Ahmad Khalil Jafri ◽  
M Afzal Khan
Keyword(s):  
Nutrient Digestibility ◽  
Clarias Batrachus ◽  
Heteropneustes Fossilis

Characterization of MboI satellites in Cirrhina mrigala and Clarias batrachus (Pisces)

Genome ◽  
1998 ◽  
Vol 41 (1) ◽  
pp. 34-39 ◽  
Author(s):  
Bhaja K Padhi ◽  
Sudip K Ghosh ◽  
Radha K Mandal
Keyword(s):  
Parental Species ◽  
Labeo Rohita ◽  
Clarias Gariepinus ◽  
Clarias Batrachus ◽  
Catla Catla ◽  
Genetic Introgression ◽  
Heteropneustes Fossilis ◽  
Reciprocal Hybrids ◽  
Species Specific

We have cloned and characterized two highly reiterated, tandemly repeated, and A + T rich MboI DNA fragments, one in Cirrhina mrigala (Cyprinidae), with a monomer size of 266 bp, and one in Clarias batrachus (Clariidae), with a monomer size of 227 bp. The MboI fragment in C. mrigala is species-specific and absent in other carps, such as Catla catla and Labeo rohita. The MboI fragment in C. batrachus was also present in two other catfishes tested, namely Clarias gariepinus and Heteropneustes fossilis. In C. mrigala xC. catla and C. mrigala x L. rohita hybrids, the C. mrigala specific MboI fragment is inherited uniparentally. In the reciprocal hybrids of C. batrachus xH. fossilis, the satellite ladder contains the bands of both parental species. The MboI satellite of carp may be useful in genetic introgression analysis and that of catfish in distinguishing between gynogenetic progeny and true hybrids.

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