A non-coding indel polymorphism in the fruitless gene of Drosophila melanogaster exhibits antagonistically pleiotropic fitness effects
A non-coding indel polymorphism in the fruitless gene of Drosophila melanogaster exhibits antagonistically pleiotropic fitness effects
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黑腹果蝇无果基因中的非编码插入缺失多态性表现出拮抗多效适应性效应
DOI:
10.1098/rspb.2020.2958
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Jardine M
中科院分区:
文献类型:
--
作者:
Jardine M
The amount of genetic variation for fitness within populations tends to exceed that expected under mutation–selection–drift balance. Several mechanisms have been proposed to actively maintain polymorphism and account for this discrepancy, including antagonistic pleiotropy (AP), where allelic variants have opposing effects on different components of fitness. Here, we identify a non-coding indel polymorphism in thefruitlessgene ofDrosophila melanogasterand measure survival and reproductive components of fitness in males and females of replicate lines carrying each respective allele. Expressing thefruitlessregion in a hemizygous state reveals a pattern of AP, with one allele generating greater reproductive fitness and the other conferring greater survival to adulthood. Different fitness effects were observed in an alternative genetic background, which may reflect dominance reversal and/or epistasis. Our findings link sequence-level variation at a single locus with complex effects on a range of fitness components, thus helping to explain the maintenance of genetic variation for fitness. Transcription factors, such asfruitless, may be prime candidates for targets of balancing selection since they interact with multiple target loci and their associated phenotypic effects.
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DOI:
--
发表时间:
1955
期刊:
Cold Spring Harbor Symposia on Quantitative Biology
影响因子:
--
作者:
T. Dobzhansky
通讯作者:
T. Dobzhansky
影响因子:
3.8
作者:
A. Tellier;L. M. Villaréal;T. Giraud
通讯作者:
T. Giraud
影响因子:
2.9
作者:
E. Caspari
通讯作者:
E. Caspari
DOI:
10.1098/rspb.2014.0489
发表时间:
2014-07-22
影响因子:
4.7
作者:
Arnqvist, Goran;Vellnow, Nikolas;Rowe, Locke
通讯作者:
Rowe, Locke
影响因子:
3.7
作者:
Waithe D;Rennert P;Brostow G;Piper MD
通讯作者:
Piper MD