|
|
| |
| Articles
by
Nader Asadzadeh |
Total Records (
3 ) for
Nader Asadzadeh |
|
 |
| |
|
| |
Arash Javanmard
,
Nader Asadzadeh
and
Fatollah Sarhadi
|
| |
Problem statement: Variations at DNA level contribute to the genetic characterization of livestock populations and this may help to identify possible hybridization events as well as past evolutionary trends. Approach: The leptin and Pit-1 are attractive candidate genes for production and reproduction traits in cattle. A total of 247 Animals from four breeds from two species of Iranian cattle populations in include Bos taurus (Sarabi, Golpayegani) and Bos indicus (Sistani, Taleshi) were genotyped for the Pit-1 HinfI and leptin Sau3AI polymorphisms by the Polymerase Chain Reaction and Restriction Fragment Length Polymorphism (PCR-RFLP). Results: The genotype and gene frequencies for each group were determined and shown to be quite variable among the breeds. The allele B for the leptin gene and allele A for the Pit-1 gene were investigated high frequency in Bos indicus. Conclusion: Present result supported the previously proposed long evolutionary separation of these cattle subrace. Candidate gene approach may be a useful method to measure of genetic distance for cross breeding program between taurin and indicine cattle. |
|
|
| |
|
| |
Reza Nahavandi
,
Nader Asadzadeh
,
Adbdolreza Soleimani Farjam
,
S.M. Nurul Amin
,
Parivash Hafezamini
and
Arash Javanmard
|
| |
Variations at DNA level contribute to the genetic characterization of livestock populations and this may help to identify possible hybridization events as well as past evolutionary trends. The leptin and Pit-1 are attractive candidate genes for production and reproduction traits in cattle. A total of 247 animals from four breeds from two species of Iranian cattle populations in include Bos taurus (Sarabi, Golpayegani) and Bos indicus (Sistani, Taleshi) were genotyped for the Pit-1 HinfI and leptin Sau3AI polymorphisms by the Polymerase Chain Reaction and Restriction Fragment Length Polymorphism (PCR-RFLP). The genotype and gene frequencies for each group were determined and shown to be quite variable among the breeds. The allele B for the leptin gene and allele A for the Pit-1 gene were investigated high frequency in Bos indicus. Candidate gene approach may be a useful method to measure of genetic distance for cross breeding program between taurin and indicine cattle. |
|
| |
|
| |
Hamid Reza Seyedabadi
,
Mohamad Hossein Banabazi
,
Fazlollah Afraz
,
Nader Asadzadeh
,
Arash Javanmard
and
Ali Javanrouh Aliabad
|
| |
Severe Combined Immunodeficiency Disease (SCID) is an autosomal recessive hereditary disease occurring among Arabian horses. The genetic defect responsible for this disease was recently identified as a 5-basepair deletion in the gene encoding DNA-Protein Kinase catalytic subunit (DNA-PKcs). Horses with one copy of the gene appear normal while horses with two copies of the gene manifest the disease. The only way to avoid the economic losses is early detection of SCID carriers. Because the real value of this test is that breeders can use it to ensure that they will never produce a SCID foal and that they can by breeding carriers to clears, preserve the unique and positive characteristics of exceptional carriers. And thereby breed out the undesirable gene over several generations. |
|
|
|
|
| |
|