Persistence of a Wolbachia-driven sex ratio bias in an island population of Eurema butterflies
Persistence of a Wolbachia-driven sex ratio bias in an island population of Eurema butterflies
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沃尔巴克氏体驱动的性别比例偏差在岛屿蝴蝶种群中持续存在
DOI:
10.1101/2020.03.24.005017
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Wataru Mitsuhashi and Masashi Nomura
中科院分区:
文献类型:
--
作者:
Daisuke Kageyama;Satoko Narita;Tatsuro Konagaya;Mai Miyata;Jun Abe;Wataru Mitsuhashi and Masashi Nomura
Prevalence of maternally inherited sex-ratio-distorting endosymbionts such asWolbachiamay have profound effects on reproduction and behaviour and can also select for nuclear suppressors in insect populations. In the butterflyEurema mandarina, aWolbachiastrainwFem induces female drive, wherein all the offspring develop as female without any sibling lethality. We monitored an island population ofE. mandarina, which compriseswFem-positive females,wFem-negative females andwFem-negative males, from 2005 to 2017. Despite some fluctuations,wFem appeared to be maintained for at least 12 years at a high frequency in the population, resulting in a female-biased population with a considerable number of virgin females. Because there was no evidence of suppressors against sex ratio distortion, the mechanism acting against increase/fixation ofwFem infection, which would otherwise lead to the population extinction, would be either the constant immigration ofwFem-negative females or the fitness cost ofwFem. Suggestively, the wing size was slightly smaller inwFem-positive females than inwFem-negative females. Additionally, the discrepancies observed between sex ratios of captive individuals and sex ratios deduced fromwFem infection frequencies among females can be explained by a plastic behavioural change of males and females in response to the shift of sex ratios.
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DOI:
10.4159/9780674029118
发表时间:
2006-01
期刊:
--
影响因子:
--
作者:
A. Burt;R. Trivers
通讯作者:
A. Burt;R. Trivers
DOI:
--
发表时间:
2004
期刊:
影响因子:
--
作者:
G. Davidowitz;L. D'Amico;H. Nijhout
通讯作者:
H. Nijhout
影响因子:
3.3
作者:
Jaenike, John
通讯作者:
Jaenike, John
影响因子:
1.9
作者:
Mitsuhashi, W;Fukuda, H;Murakami, R
通讯作者:
Murakami, R
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
M. Hiroki;Y. Ishii;Y. Kato
通讯作者:
Y. Kato