ANALYSIS OF PATERNITY WITHIN A NATURAL-POPULATION OF CHAMAELIRIUM-LUTEUM .1. IDENTIFICATION OF MOST-LIKELY MALE PARENTS
ANALYSIS OF PATERNITY WITHIN A NATURAL-POPULATION OF CHAMAELIRIUM-LUTEUM .1. IDENTIFICATION OF MOST-LIKELY MALE PARENTS
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DOI：
10.1086/284554
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发表时间：
1986-08-01
影响因子：
2.9
通讯作者：
MEAGHER, TR
中科院分区：
文献类型：
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作者：
MEAGHER, TR
最有可能的父本是通过使用遗传标记和评估从森林草本植物黄毛壳草的自然种群中收集的已知母本种子的统计可能性来确定的。总共确定了2255个种子的可能性，其中575个种子的子集分配了男性父母。因此，这575粒种子可以分为雄性兄弟姐妹关系和雌性兄弟姐妹关系。在这些部分同胞关系中，男性在配偶数量上的差异更大，显示出特定性别选择的潜力。在随机交配的基础上，发现交配间(花粉流)的距离比预期的更接近；然而，与其他昆虫授粉物种的研究结果相比，远距离花粉流的发生率很高。最后，女性与配偶之间的距离的差异比男性更大，这再次表明了性别选择的潜力。因此，亲子鉴定提供了独特的歧视性力量，为自然人口的生殖生物学提供了新的见解。
The most-likely male parents were identified by using genetic markers and evaluating the statistical likelihoods of paternity for seed collection from known female parents within a natural population of the forest herb Chamaelirium luteum. Likelihoods were determined for a total of 2255 seed, of which male parents were assigned for a subset of 575 seed. These 575 seed could thus be sorted into male sibships as well as female sibships. Within these partial sibships, males had a higher variance in the number of mates, showing a potential for sex-specific selection. Intermate (pollen-flow) distances were found to show more nearby matings than expected on the basis of random mating; however, the incidence of long-distance pollen flow was high compared to findings from studies on other insect-pollinated species. Finally, the variance in the distance to mates was greater among females than among males, again showing a potential for sex-specific selection. The unique discriminatory power provided by the identification of paternity thus affords new insights into the reproductive biology of natural populations.