Genotype and allelic frequencies of a newly identified mutation causing blindness in jordanian awassi sheep flocks.
作者： K. I. Z. Jawasreh , H. Ababneh , F. T. Awawdeh , M. A. Al-Massad , A. M. Al-Majali
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摘要: A total of 423 blood samples were collected (during 2009 and 2010) from all the ram holdings at three major Jordanian governmental Awassi breeding stations (Al-Khanasry, Al-Mushairfa Al-Fjaje) two private flocks. All screened for presence mutations CNGA3 gene (responsible day blindness in sheep) using RFLP-PCR. The mutation was detected studied overall allele genotype frequencies flocks 0.088 17.49%, respectively. higher station than farmer (0.121, 24.15 0.012, 2.32, respectively). Al-Khanasry have highest that 27.77, 30.00% 0.14, 0.171, investigated low percentages (0.03, 5.88% Al-Shoubak 0.005 1.05%, Al-Karak, respectively frequencies) compared with stations. Ram culling strategy applied throughout genotyping period order to gradually eradicate this newly identified Breeding station, since they annually distribute a high percentage improved rams farmer’s
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