德牧颜色遗传规律

德牧颜色遗传规律？

影响德牧色型的a系复等位基因。考量四种影响着德牧的毛色的隐性基因：它们是纯黑a、铁包金at、黑背as和狼青ay。

纯合黑aa与其他色型的后代

a a = 纯黑

a at =铁包金

a as = 黑背

a ay = 狼青

纯合铁包金atat与其他色型的后代

at a =铁包金

at at =铁包金

at as = 黑背

at ay = 狼青

纯合黑背asas与其他色型的后代

as a = 黑背

as at = 黑背

as as = 黑背

as ay = 狼青

纯合狼青ayay与其他色型的后代

ay a = 狼青

ay at = 狼青

ay as = 狼青

ay ay = 狼青

统计可知：在16个理论后代中，狼青占7，黑背占5，铁包金占3，纯黑占1.。这就是在不分色型的繁育中，德牧后代的大致比例。