Does polyandry control population sex ratio via regulation of a selfish gene?
Does polyandry control population sex ratio via regulation of a selfish gene?
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一妻多夫制是否通过调节自私基因来控制人口性别比例?
DOI:
10.1098/rspb.2013.3259
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
Price TA
中科院分区:
文献类型:
--
作者:
Price TA
The extent of female multiple mating (polyandry) can strongly impact on the intensity of sexual selection, sexual conflict, and the evolution of cooperation and sociality. More subtly, polyandry may protect populations against intragenomic conflicts that result from the invasion of deleterious selfish genetic elements (SGEs). SGEs commonly impair sperm production, and so are likely to be unsuccessful in sperm competition, potentially reducing their transmission in polyandrous populations. Here, we test this prediction in nature. We demonstrate a heritable latitudinal cline in the degree of polyandry in the fruitflyDrosophila pseudoobscuraacross the USA, with northern population females remating more frequently in both the field and the laboratory. High remating was associated with low frequency of a sex-ratio-distorting meiotic driver in natural populations. In the laboratory, polyandry directly controls the frequency of the driver by undermining its transmission. Hence we suggest that the cline in polyandry represents an important contributor to the cline insex ratioin nature. Furthermore, as the meiotic driver causes sex ratio bias, variation in polyandry may ultimately determine population sex ratio across the USA, a dramatic impact of female mating decisions. As SGEs are ubiquitous it is likely that the reduction of intragenomic conflict by polyandry is widespread.
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DOI:
10.1111/j.1558-5646.2011.01336.x
发表时间:
2011-09
期刊:
Evolution; international journal of organic evolution
影响因子:
--
作者:
Manser A;Lindholm AK;König B;Bagheri HC
通讯作者:
Bagheri HC
影响因子:
2.1
作者:
G. Wilkinson;P. Johns;E. Kelleher;Mario L. Muscedere;A. Lorsong
通讯作者:
A. Lorsong
影响因子:
2.1
作者:
HAIG, D;BERGSTROM, CT
通讯作者:
BERGSTROM, CT
影响因子:
3.3
作者:
Schaeffer,SW;Miller,EL
通讯作者:
Miller,EL
影响因子:
1.7
作者:
R. Jaffé;R. Moritz;F. B. Kraus
通讯作者:
F. B. Kraus