核型不平衡导致的猪胚胎死亡。
Embryonic death in pigs caused by unbalanced karyotype.
作者信息
Akesson A, Henricson B
出版信息
Acta Vet Scand. 1972;13(2):151-60. doi: 10.1186/BF03548568.
A landrace boar being heterozygous for a translocation has been used in 43 matings to 30 sows. Compared to a normal boar which also served part of the same sow group the defect boar had a by 30 % reduced fertility. Five different types of unbalanced karyotypes were detected in fetuses sired by the translocation heterozygote. Since no unbalanced karyotype was to be found postnatally in 111 offspring, all defect karyotypes seem to be lethal at the embryonic stage. Forty-one % of the postnatally investigated cases had the same translocation as the father.
一头携带易位杂合子的地方品种公猪与30头母猪进行了43次交配。与同样为同一组母猪配种的正常公猪相比，这头有缺陷的公猪生育力降低了30%。在这头易位杂合子公猪所产的胎儿中检测到了五种不同类型的不平衡核型。由于在111头后代中出生后未发现不平衡核型，所有有缺陷的核型在胚胎阶段似乎都是致死的。出生后调查的病例中有41%与父亲有相同的易位。
Zotero 插件