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By P. Gronek D. Napieraa K. Nuc R. Steppa A. Plawski R. S!omski 《Zeitschrift für Tierzüchtung und Züchtungsbiologie》1999,116(4):263-267
The PCR products of ryr1 gene amplified from genomic DNA of Sus scrofa and synthetic prolific lines of Ovis aries were analysed. The polymerase chain reaction-single strand conformation polymorphism (PCR-SSCP), and sequencing analysis for research on ovine, ryanodine receptor ( ryr1 ) gene. The ovine fragment of ryr1 gene did not differ from exon 17 of the porcine ryr1 gene. 相似文献
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Restriction fragment length polymorphisms in myogenin and myf3 genes and their influence on lean meat content in pigs 总被引:7,自引:0,他引:7
By D. Cielak W. Kapelaski T. Blicharski M. Pierzcha!a 《Zeitschrift für Tierzüchtung und Züchtungsbiologie》2000,117(1):43-55
A total of 120 pigs from farm I and 109 from farm II were examined for Dde I polymorphism in myf3 and for Msp I polymorphism in myogenin genes. Meatness, weight and ratio of ham and loin meat, and loin eye area of animals with different genotypes for myf3 and for myogenin were compared. In myf3 polymorphism pigs A/A from farm I displayed significantly lower values for these characteristics. In farm II there was a reverse tendency. Present results indicate that the Dde I polymorphic region in porcine myf3 gene does not influence functionality of this gene but it may point at another polymorphism located nearby and being of functional importance. Two regions of the porcine myogenin gene were analysed for Msp I polymorphism. The region encompassing coding sequences ( MYOG1 ) was polymorphic only in three Pietrain pigs (out of 150 individuals tested) making it useless for assessment of meat productivity in pigs. The 3' untranslated region was polymorphic and the frequency of 4.2 and 4.9 alleles varied among breeds. The 4.2 variant was predominant in Pietrain pigs. Statistical analysis indicated that meat, ham and loin meat percentages as well as loin eye area were significantly higher in 4.2/4.2 homozygotes. Further study will be undertaken to explain the relations between meat productivity and myf3 and MYOG2 alleles within breed. 相似文献
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1999年至2000年,山西省太岳山林局应用人工合成的华北落叶松鞘蛾性信息素对华北落叶松鞘蛾进行了监测,并开展了大量诱杀试验。结果表明,该引诱剂对华北落叶松鞘蛾雄蛾有较强的引诱作用,60个诱捕器在成虫扬飞期共诱到鞘蛾成虫51万头,应用诱捕器后,林地内华北落叶松鞘蛾被害率下降50.1%,虫口密度下降81.2%。可用于对华北落叶松鞘蛾的监测和防治。 相似文献
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