Positive selection on mitochondria may eliminate heritable microbes from arthropod populations
Positive selection on mitochondria may eliminate heritable microbes from arthropod populations
复制标题
对线粒体的正选择可能会消除节肢动物种群中的可遗传微生物
DOI:
10.1101/2021.03.26.437186
复制
发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Fenton A
中科院分区:
文献类型:
--
作者:
Fenton A
Diverse eukaryotic taxa carry facultative heritable symbionts, microbes that are passed from mother to offspring. These symbionts are coinherited with mitochondria, and selection favouring either new symbionts, or new symbiont variants, is known to drive loss of mitochondrial diversity as a correlated response. More recently, evidence has accumulated of episodic directional selection on mitochondria, but with currently unknown consequences for symbiont evolution. We therefore employed a population genetic mean field framework to model the impact of selection on mitochondrial DNA (mtDNA) upon symbiont frequency for three generic scenarios of host–symbiont interaction. Our models predict that direct selection on mtDNA can drive symbionts out of the population where a positively selected mtDNA mutation occurs initially in an individual that is uninfected with the symbiont, and the symbiont is initially at low frequency. When, by contrast, the positively selected mtDNA mutation occurs in a symbiont-infected individual, the mutation becomes fixed and in doing so removes symbiont variation from the population. We conclude that the molecular evolution of symbionts and mitochondria, which has previously been viewed from a perspective of selection on symbionts driving the evolution of a neutral mtDNA marker, should be reappraised in the light of positive selection on mtDNA.
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影响因子:
3.3
作者:
Rank,Nathan E.;Mardulyn,Patrick;Dahlhoff,Elizabeth P.
通讯作者:
Dahlhoff,Elizabeth P.
影响因子:
3
作者:
Heyworth, Eleanor R.;Smee, Melanie R.;Ferrari, Julia
通讯作者:
Ferrari, Julia
影响因子:
1.5
作者:
Charlesworth, B
通讯作者:
Charlesworth, B
DOI:
10.1111/j.1095-8312.1993.tb00898.x
发表时间:
1993-06-01
影响因子:
1.9
作者:
HURST, GDD;MAJERUS, MEN;WALKER, LE
通讯作者:
WALKER, LE
影响因子:
7.2
作者:
Hurst, Gregory D. D.;Frost, Crystal L.
通讯作者:
Frost, Crystal L.