Jaenike J
Department of Biology, University of Rochester, New York 14627.
Heredity (Edinb). 1987 Dec;59 ( Pt 3):363-9. doi: 10.1038/hdy.1987.144.
A survey of 175 isofemale strains from seven populations of Drosophila tripunctata showed that the preferences of females for mushrooms versus tomatoes as oviposition sites follow an approximately normal distribution among strains, as would be expected if this behaviour were governed by many genes with small, additive effects. However, crosses among several strains revealed the existence of autosomal genes with dominance and interaction effects having substantial influence on oviposition-site preference. Despite the apparent genetic complexity of this behaviour, it was found that at least one locus affecting this preference is linked to the autosomal gene encoding the enzyme aconitase, thus encouraging the belief that it may eventually be possible to study the molecular and developmental basis for this evolutionarily important behaviour.
对来自七点黑腹果蝇七个种群的175个同雌系进行的一项调查显示，雌蝇对蘑菇和番茄作为产卵地点的偏好，在不同品系间大致呈正态分布，这正如预期的那样，如果这种行为是由许多具有微小加性效应的基因所控制。然而，几个品系间的杂交表明，存在具有显性和互作效应的常染色体基因，对产卵地点偏好有重大影响。尽管这种行为的遗传复杂性明显，但发现至少有一个影响这种偏好的基因座与编码乌头酸酶的常染色体基因相连，因此让人相信，最终有可能研究这种具有重要进化意义行为的分子和发育基础。
