FEMALE STICKLEBACKS USE MALE COLORATION IN MATE CHOICE AND HENCE AVOID PARASITIZED MALES
FEMALE STICKLEBACKS USE MALE COLORATION IN MATE CHOICE AND HENCE AVOID PARASITIZED MALES
复制标题
DOI：
10.1038/344330a0
复制
发表时间：
1990-03-22
期刊：
影响因子：
64.8
通讯作者：
BAKKER, TCM
中科院分区：
文献类型：
--
作者：
MILINSKI, M;BAKKER, TCM
自达尔文时代以来，进化生物学的一个重要问题就是理解为什么雌性偏爱与第二性装饰物缺陷的雄性交配1 - 3。性选择理论的一个假设是，这些装饰物可靠地揭示了雄性的状况4 - 6，这可能受到寄生虫等因素的影响4 - 7-13。本研究表明，三棘棘鱼雄性繁殖颜色的红色强度与身体状况呈正相关。怀孕的雌性根据雄性红色的强度来主动选择配偶。绿光下的选择实验阻止了雌性对红色线索的使用，尽管雄性的求爱行为保持不变，但之前被选中的雄性现在只是随机地被选中。寄生会导致雄蜂的状况恶化，并降低其红色的强度。在两种光照条件下的测试表明，雌性通过较低的繁殖颜色强度来识别以前被寄生的雄性。雌性棘鱼可能会选择一个有能力照顾父亲的雄性，但如果存在抗寄生虫的遗传变异，那么它们也可能会选择抗寄生虫的基因，正如汉密尔顿和祖克所提出的那样。
AN important problem in evolutionary biology since the time of Darwin has been to understand why females preferentially mate with males handicapped by secondary sexual ornaments1–3. One hypothesis of sexual selection theory is that these ornaments reliably reveal the male's condition4–6, which can be affected for example by parasites4,7–13. Here we show that in the three-spined stickleback (Gasterosteus aculeatus) the intensity of male red breeding coloration positively correlates with physical condition. Gravid females base their active mate choice on the intensity of the male's red coloration. Choice experiments under green light prevent the use of red colour cues by females, and males that were previously preferred are now chosen no more than randomly, although the courtship behaviour of the males remains unchanged. Parasitieation causes a deterioration in the males' condition and a decrease in the intensity of their red coloration. Tests under both lighting conditions reveal that the females recognize the formerly parasitized males by the lower intensity of their breeding coloration. Female sticklebacks possibly select a male with a good capacity for paternal care14but if there is additive genetic variation for parasite resistance, then they might also select for resistance genes, as proposed by Hamilton and Zuk4.