Matrilineal kin relationship and social behavior of wild bonobos (Pan paniscus): Sequencing the D-loop region of mitochondrial DNA
Matrilineal kin relationship and social behavior of wild bonobos (Pan paniscus): Sequencing the D-loop region of mitochondrial DNA
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DOI：
10.1007/bf02381862
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发表时间：
1996-07-01
期刊：
影响因子：
1.7
通讯作者：
Takenaka, O
中科院分区：
文献类型：
--
作者：
Hashimoto, C;Furuichi, T;Takenaka, O
采用DNA分析方法研究了野生倭黑猩猩（Pan paniscus）的母系亲属关系。受试个体是居住在扎伊尔万巴的El群体的成员，自1974年以来一直对其进行研究。研究人员从倭黑猩猩吃甘蔗时吐出的唾液中提取DNA样本。采用PCR法扩增线粒体DNA d环区，得到17个个体350个碱基对的核苷酸序列。在序列的44个位置发现核苷酸变异。基于这些变异，将13个母系单位分为7组，并在几个雌性中确定一个孤儿雄性的母亲。这些基因分析，加上迄今为止的行为观察，揭示了以下事实。目标区域的高序列变异表明雌性在倭黑猩猩群体之间转移，这与长期实地研究的假设一致。对于女性来说，基因亲密度和社会亲密度之间没有关系，社会亲密度是由接近或梳理的频率来表示的。女性在进入一个新的群体后，与年长的女性形成社会关系，而不考虑亲属关系。
Matrilineal kin-relations among wild bonobos (Pan paniscus) were studied by DNA analysis. Subject individuals were the members of El group, living at Wamba, Zaire, which has been studied since 1974. DNA samples were extracted from wadges that bonobos spat out when feeding on sugar cane. The D-loop region of mitochondrial DNA was amplified by the PCR method, and a nucleotide sequence of 350 base pairs was determined for 17 individuals. Nucleotide variations were found at 44 positions of the sequence. Based on these variations, 13 matrilineal units were divided into seven groups, and the mother of an orphan male was determined among several females. These genetic analyses, together with behavioral observation to date, revealed the following facts. High sequence variation in the target region indicated that females transfer between groups of bonobos, which is in agreement with supposition from long-term field studies. For females, there was no relationship between genetic closeness and social closeness that is represented by frequencies of proximity or grooming. After immigration into a new group, females form social associations with senior females without regard to kin relationship.