【摘要】 冠型为家禽的品种特征之一,不同品种的鸡其冠形也有各自的特点和形状。家鸡冠型主要有单冠、豆冠、玫瑰冠、胡桃冠等4种类型,它们由2对基因控制,即玫瑰冠基因R和豆冠基因P,这2个基因位于不同的染色体上。现对冠型基因和生产性能关系,冠型基因的遗传规律及基因定位的研究作一概述。更多还原

【Abstract】 The comb type is one of domesticated fowl’s traits,and combs of different ckicken breeds have different characteristics and shapes.There are four types in chicken combs:pea comb,rose comb,single comb and walnut comb.The comb morphology of chickens is determined by the rose comb gene(R)and the pea comb gene(P),but they are on different chromosomes.This article reviews the relationship between comb genes and performance,as well as heredity rule of comb types and the mapping of comb gene in the chicken.更多还原