CRITERIA FOR DEMONSTRATING FEMALE SPERM CHOICE
CRITERIA FOR DEMONSTRATING FEMALE SPERM CHOICE
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展示女性精子选择的标准
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
W. D. Brown
中科院分区：
文献类型：
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作者：
S. Pitnick;W. D. Brown
女性可能会根据男性的吸引力或与男性的基因(不)相容来选择精子。越来越多的证据表明，男性和女性的基因都会影响受精成功(Wedekin等人。1996年，Clark et al.1999年)。如果选择女性精子是避免近亲交配的负面影响的一种机制(正如1998年发表在伯克黑德的研究综述所表明的那样)，人们可以使用相关和不相关的女性群体进行P2实验。这样的例子是由Wilson等人提供的。(1997)，并在Birkhead(1998)中讨论过。最近一项关于田野装饰蟋蟀(Gryllodes Supplicans)的研究使用了一种不同的方法(Stockley，1999)。在这项研究中，一对兄弟姐妹中的每一位女性都被允许首先与一位兄弟姐妹的男性交配，然后是另一位兄弟姐妹的男性或非兄弟姐妹。当第二个兄弟姐妹是非兄弟姐妹时，第一个兄弟姐妹获得的父权(P1值)较低，这为基于遗传相似性的女性精子选择提供了一些证据(Stockley 1999)。
Females may base their choice of sperm on male attractiveness or on genetic (in)compatibility with the male. Evidence is accumulating that male and female genotype both affect fertilization success (Wedekind et al. 1996, Clark et al. 1999). If female sperm choice is a mechanism to avoid the negative effects of inbreeding (as the studies reviewed in Birkhead 1998 suggest), one could perform P2-experiments using groups of related versus unrelated females. Such an example is provided by Wilson et al. (1997) and discussed in Birkhead (1998). A recent study on decorated field crickets (Gryllodes supplicans) used a different approach (Stockley 1999). In this study, each female of a sibling pair was allowed to copulate first with a sibling male, followed by either another sibling male or a nonsibling. The paternity obtained by the first sibling male (P1 value) was lower when the second male was a nonsibling, providing some evidence for female sperm choice based on genetic similarity (Stockley 1999).