Ciaranello R D, Lipsky A, Axelrod J
Proc Natl Acad Sci U S A. 1974 Aug;71(8):3006-8. doi: 10.1073/pnas.71.8.3006.
Levels of three adrenal catecholamine synthesizing enzymes and isolation-induced fighting behavior were studied in two related sublines of the Balb/c inbred mouse strain. Enzyme levels were twice as high in the adrenals of Balb/cJ mice as in those of the Balb/cN mice; heterozygous progeny were intermediate between their parents in the levels of the three enzymes. These sublines also showed marked differences in their fighting behavior after a 2-week isolation period. Balb/cJ mice fought immediately after presentation of an intruder mouse, while Balb/cN mice did not fight at any time during the test. Heterozygous progeny behaved more like the Balb/cN (non-fighters). Analysis of F(2) mice suggested that the differences in fighting behavior were determined by a single gene, with fighting being recessive.
在近交系Balb/c小鼠品系的两个相关亚系中,研究了三种肾上腺儿茶酚胺合成酶的水平以及隔离诱导的攻击行为。Balb/cJ小鼠肾上腺中的酶水平是Balb/cN小鼠的两倍;杂合子后代在这三种酶的水平上介于其父母之间。在经过2周的隔离期后,这些亚系在攻击行为上也表现出显著差异。引入入侵者小鼠后,Balb/cJ小鼠立即发起攻击,而Balb/cN小鼠在测试期间任何时候都不攻击。杂合子后代的行为更像Balb/cN(非攻击者)。对F(2)代小鼠的分析表明,攻击行为的差异由单个基因决定,攻击行为是隐性的。