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| DOI | 10.1073/pnas.2003359118 |
| Sexually antagonistic coevolution between the sex chromosomes of Drosophila melanogaster | |
| Lund-Hansen K.K.; Olito C.; Morrow E.H.; Abbott J.K. | |
| 发表日期 | 2021 |
| ISSN | 00278424 |
| 卷号 | 118期号:8 |
| 英文摘要 | Antagonistic interactions between the sexes are important drivers of evolutionary divergence. Interlocus sexual conflict is generally described as a conflict between alleles at two interacting loci whose identity and genomic location are arbitrary, but with opposite fitness effects in each sex. We build on previous theory by suggesting that when loci under interlocus sexual conflict are located on the sex chromosomes it can lead to cycles of antagonistic coevolution between them and therefore between the sexes. We tested this hypothesis by performing experimental crosses using Drosophila melanogaster where we reciprocally exchanged the sex chromosomes between five allopatric wild-type populations in a round-robin design. Disrupting putatively coevolved sex chromosome pairs resulted in increased male reproductive success in 16 of 20 experimental populations (10 of which were individually significant), but also resulted in lower offspring egg-to-adult viability that affected both male and female fitness. After 25 generations of experimental evolution these sexually antagonistic fitness effects appeared to be resolved. To formalize our hypothesis, we developed population genetic models of antagonistic coevolution using fitness expressions based on our empirical results. Our model predictions support the conclusion that antagonistic coevolution between the sex chromosomes is plausible under the fitness effects observed in our experiments. Together, our results lend both empirical and theoretical support to the idea that cycles of antagonistic coevolution can occur between sex chromosomes and illustrate how this process, in combination with autosomal coadaptation, may drive genetic and phenotypic divergence between populations. © 2021 National Academy of Sciences. All rights reserved. |
| 英文关键词 | Coevolution; Compensatory evolution; Interlocus sexual conflict; Sex chromosome evolution |
| 语种 | 英语 |
| scopus关键词 | adult; article; coevolution; Drosophila melanogaster; female; genetic model; male; nonhuman; prediction; progeny; reproductive success; sex chromosome; theoretical study; wild type |
| 来源期刊 | Proceedings of the National Academy of Sciences of the United States of America
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/180594 |
| 作者单位 | Department of Biology, Section for Evolutionary Ecology, Lund University, Lund, 223 62, Sweden; School of Life Sciences, University of Sussex, Brighton, BN1 9QG, United Kingdom; Department for Environmental and Life Sciences, Karlstad University, Karlstad, 651 88, Sweden |
| 推荐引用方式 GB/T 7714 | Lund-Hansen K.K.,Olito C.,Morrow E.H.,et al. Sexually antagonistic coevolution between the sex chromosomes of Drosophila melanogaster[J],2021,118(8). |
| APA | Lund-Hansen K.K.,Olito C.,Morrow E.H.,&Abbott J.K..(2021).Sexually antagonistic coevolution between the sex chromosomes of Drosophila melanogaster.Proceedings of the National Academy of Sciences of the United States of America,118(8). |
| MLA | Lund-Hansen K.K.,et al."Sexually antagonistic coevolution between the sex chromosomes of Drosophila melanogaster".Proceedings of the National Academy of Sciences of the United States of America 118.8(2021). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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