Courtship displays of introgressed, interspecific hybrid nasonia males: Further investigations into the 'grandfather effect'
Courtship displays of introgressed, interspecific hybrid nasonia males: Further investigations into the 'grandfather effect'
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DOI：
10.1163/15685390260337886
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发表时间：
2002-08-01
期刊：
影响因子：
1.3
通讯作者：
van den Assem, J
中科院分区：
文献类型：
--
作者：
Beukeboom, LW;van den Assem, J
在此之前，我们研究了两种纳索尼亚的双向，种间杂交雄性的求偶行为（Beukeboom和货车登Assem，2001）。显示器的特征是中间的亲本物种，但在同一时间偏向于父系的一方。由于单倍二倍体的性别决定系统，单倍（因此，无父）的Nasonia雄性最近的雄性父母是他们的祖父。因此，我们把这种偏见称为“祖父效应”。在本文中，我们调查的祖父效应的可能原因之一：核质相互作用。在种间杂种中，父本捐赠的核基因必须在一个“外来”环境中运作：母本（异源）细胞质。在这种情况下，不利影响可能占主导地位，并导致偏向的基因传播（尽管是向母体一方）。通过渐渗技术和随后的渐渗系杂交，我们构建了父本贡献的核基因与母本细胞质同种的雄性后代。这些男性的求爱提供了一个测试的相互作用假设。因为我们的研究结果显示了“祖父效应”的持久性，一个简单的核质相互作用似乎是一个不太可能的现象的解释。
Previously, we investigated courtship behaviour of bidirectional, interspecific hybrid males of two species of Nasonia (Beukeboom & van den Assem, 2001). Characteristics of the displays were intermediate between those of the parental species, but at the same time were biased towards the paternal side. Due to the haplodiploid sex determination system of the Hymenoptera, the nearest male parent of the haploid (hence, fatherless) Nasonia males are their grandfather. Therefore, we have called this bias the 'grandfather effect'. In the present paper, we investigate one of the possible causes of the 'grandfather effect': nucleocytoplasmic interaction. In interspecific hybrids, the paternally donated nuclear genes must operate in an 'alien' environment: the maternal (heterospecific) cytoplasm. Adverse effects may prevail in this situation, and result in a biased gene transmission (although to the maternal side). With introgression techniques and subsequent hybridisation of introgressed lines, we constructed male progeny in which paternally contributed nuclear genes are conspecific with the maternal cytoplasm. Courtship of these males provide a test of the interaction hypothesis. Because our results show a persistence of the 'grandfather effect', a simple nucleo-cytoplasmic interaction seems an unlikely explanation of the phenomenon.