Wedekind C
Abteilung Verhaltensökologie, Universität Bern, Hinterkappelen, Switzerland.
J Theor Biol. 1994 Sep 7;170(1):57-62. doi: 10.1006/jtbi.1994.1167.
In previous models of parasite-driven sexual selection, the signals that reveal parasite resistances and that are used in mate choice should be costly to be reliable ("Handicap Principle"). However, sometimes parameter constellations could exist that allow for cheap signals directly revealing the identity of resistance genes. Despite the general conflict of interests between the sexes, sexual selection may, in these cases, have led males to focus on improving their offspring's survival chances instead of trying to get a maximum number of offspring. Males may achieve this by allowing choosy females to optimize costs and benefits of each resistance in the progeny. Multiple signals (such as odours) may serve to encode the necessary information about the identity of resistance genes. As an example, the connection between the major histocompatibility complex and odour-based mate choice in mice could be explained by this hypothesis.
在先前寄生虫驱动的性选择模型中，那些揭示寄生虫抗性并用于配偶选择的信号要想可靠就应该代价高昂（“ handicap 原则”）。然而，有时可能存在参数组合，使得直接揭示抗性基因身份的廉价信号成为可能。尽管两性之间普遍存在利益冲突，但在这些情况下，性选择可能会导致雄性专注于提高后代的生存几率，而不是试图生育最多数量的后代。雄性可以通过允许挑剔的雌性优化后代中每种抗性的成本和收益来实现这一点。多种信号（如气味）可能用于编码关于抗性基因身份的必要信息。例如，这一假说可以解释小鼠主要组织相容性复合体与基于气味的配偶选择之间的联系。
