摘要
从血型因子频率和蛋白（酶）多态遗传监测了开放核心群育种体系培育工业化蛋鸡品系的效果．结果表明，培育育种过程中，各品系遗传结构没有发生显著变化，ＯＮＢＳ可以缓冲育种中突出的遗传抽样所导致的抽样偏差问题，因此引进鸡优秀的遗传背景仍被培育后的群体所维系．Ｃ系的基因频率与Ａ，Ｂ，Ｄ系均存在显著的差异性，说明该鸡祖代四系中Ｃ系有其遗传特殊性．
Effect of open nucleus breeding system (ONBS) was evaluated through blood group gene frequencies and protein polymorphisms. The results indicated no significant genetic differences between model and duplicated populations and revealed the genomic continuity within the ONBS, as a result of its buffering effect against genetic sampling deviation. Line C exhibited significant differences from lines A,B and D in gene frequencies, demostrating its unique gentic background among the four G.P lines.
出处
《湖南农业大学学报（自然科学版）》
CAS
CSCD
1998年第1期62-66,共5页
Journal of Hunan Agricultural University(Natural Sciences)
基金
湖南省教委资助
关键词
卵用鸡
开放核心群
育种体系
遗传标记
eggtype chickens
open nucleus
breeding systems
population genetics
genetic marker
gene frequency
