Can patterns of chromosome inversions in Drosophila pseudoobscura predict polyandry across a geographical cline?
Can patterns of chromosome inversions in Drosophila pseudoobscura predict polyandry across a geographical cline?
复制标题
DOI：
10.1002/ece3.1165
复制
发表时间：
2014-08
影响因子：
2.6
通讯作者：
Wedell, Nina
中科院分区：
文献类型：
--
作者：
Herrera, Paul;Taylor, Michelle L.;Skeats, Alison;Price, Tom A. R.;Wedell, Nina
雌性多次交配，被称为一妻多夫，是普遍存在的，并发生在各种各样的类群。一妻多夫制的种类有很大的不同，从雌性在一生中与一个或两个雄性交配的物种到雌性在同一天与几个不同的雄性交配的物种。由于雌性的多次交配与成本有关，许多假设试图解释这一现象。一个没有被广泛探讨的假设是，一妻多夫行为被捕获并通过遗传过程“固定”在种群中的可能性，这种遗传过程独立于一妻多夫的任何适应性益处而保留了这种行为。在这里，我们使用女性等值线来自种群的果蝇pseudobscura从三个地点在北美检查是否不同的女性remating水平与染色体倒位的模式，这可能会解释整个地理范围内的一妻多夫模式。不同的人口方面的频率一妻多夫和存在的倒位多态性的第三条染色体。最低水平的女性再交配的人口是唯一一个完全由同型系，但少数人口阻止我们进一步调查这种关系在人口水平。然而，我们没有发现很强的关系之间的女性remating水平和特定的核型的各种等值线。
Female multiple mating, known as polyandry, is ubiquitous and occurs in a wide variety of taxa. Polyandry varies greatly from species in which females mate with one or two males in their lifetime to species in which females may mate with several different males on the same day. As multiple mating by females is associated with costs, numerous hypotheses attempt to explain this phenomenon. One hypothesis not extensively explored is the possibility that polyandrous behavior is captured and “fixed” in populations via genetic processes that preserve the behavior independently of any adaptive benefit of polyandry. Here, we use female isolines derived from populations of Drosophila pseudoobscura from three locations in North America to examine whether different female remating levels are associated with patterns of chromosome inversions, which may explain patterns of polyandry across the geographic range. Populations differed with respect to the frequency of polyandry and the presence of inversion polymorphisms on the third chromosome. The population with the lowest level of female remating was the only one that was entirely comprised of homokaryotypic lines, but the small number of populations prevented us investigating this relationship further at a population level. However, we found no strong relationship between female remating levels and specific karyotypes of the various isolines.
登录
查看更多内容
影响因子：
3.8
作者：
BEARDMORE, J. A.;DOBZHANSKY, TH.;PAVLOVSKY, O. A.
通讯作者：
PAVLOVSKY, O. A.
影响因子：
2.9
作者：
BECKENBACH, AT
通讯作者：
BECKENBACH, AT
影响因子：
3.1
作者：
ANDERSON, WW
通讯作者：
ANDERSON, WW
影响因子：
3.3
作者：
BECKENBACH, A
通讯作者：
BECKENBACH, A
影响因子：
3.3
作者：
DOBZHANSKY, T
通讯作者：
DOBZHANSKY, T