The application of DNA markers to defining the genotype and predicting the performance of an animal is available to animal breeding Marker assisted selection {MAS} facilitates the exploitation of existing genetic dive...The application of DNA markers to defining the genotype and predicting the performance of an animal is available to animal breeding Marker assisted selection {MAS} facilitates the exploitation of existing genetic diversity in breeding populations and can be used to improve a whole rang of desirable traits. DNA markers are polymophic, and the methods used to define DNA markers include RFLPs, microsatellites and single nucleotide polymorphisms (SNPs). Linkage analysis, association analysis and analysis of gene function can be used to determine which polymorphisms are useful marker for desirable traits. As far, the development and use of high throughput DNA microarray (DNA chip) technology could revolutionize animal breeding in 21st century.展开更多
本研究以柴达木山羊、柴达木绒山羊和辽宁绒山羊三个群体共147只山羊为材料,利用聚丙烯酰胺凝胶电泳(PAGE)技术检测了5种血液蛋白质(酶)基因座的遗传多态性,并进行了结构基因遗传共适应的研究,结果发现:45个基因座组合中有10个基因座组...本研究以柴达木山羊、柴达木绒山羊和辽宁绒山羊三个群体共147只山羊为材料,利用聚丙烯酰胺凝胶电泳(PAGE)技术检测了5种血液蛋白质(酶)基因座的遗传多态性,并进行了结构基因遗传共适应的研究,结果发现:45个基因座组合中有10个基因座组合处于遗传不平衡状态,并且这些遗传不平衡皆单纯由遗传共适应差异造成;除辽宁绒山羊Tf PA 3组合的遗传不平衡包含非等位基因间的遗传共适应差异外,其他基因座组合的遗传不平衡皆由等位基因间的共适应差异,即单基因座的遗传不平衡造成;LAP EsD组合的共适应差异在群体间有遗传传递现象。展开更多
文摘The application of DNA markers to defining the genotype and predicting the performance of an animal is available to animal breeding Marker assisted selection {MAS} facilitates the exploitation of existing genetic diversity in breeding populations and can be used to improve a whole rang of desirable traits. DNA markers are polymophic, and the methods used to define DNA markers include RFLPs, microsatellites and single nucleotide polymorphisms (SNPs). Linkage analysis, association analysis and analysis of gene function can be used to determine which polymorphisms are useful marker for desirable traits. As far, the development and use of high throughput DNA microarray (DNA chip) technology could revolutionize animal breeding in 21st century.
文摘本研究以柴达木山羊、柴达木绒山羊和辽宁绒山羊三个群体共147只山羊为材料,利用聚丙烯酰胺凝胶电泳(PAGE)技术检测了5种血液蛋白质(酶)基因座的遗传多态性,并进行了结构基因遗传共适应的研究,结果发现:45个基因座组合中有10个基因座组合处于遗传不平衡状态,并且这些遗传不平衡皆单纯由遗传共适应差异造成;除辽宁绒山羊Tf PA 3组合的遗传不平衡包含非等位基因间的遗传共适应差异外,其他基因座组合的遗传不平衡皆由等位基因间的共适应差异,即单基因座的遗传不平衡造成;LAP EsD组合的共适应差异在群体间有遗传传递现象。
