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DOI | 10.1111/ele.12792 |
Why mutualist partners vary in quality: mutation-selection balance and incentives to cheat in the fig tree-fig wasp mutualism | |
Jander, K. Charlotte1,2; Steidinger, Brian S.3 | |
2017-07-01 | |
发表期刊 | ECOLOGY LETTERS
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ISSN | 1461-023X |
EISSN | 1461-0248 |
出版年 | 2017 |
卷号 | 20期号:7 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Mutualisms between species are ecologically ubiquitous but evolutionarily puzzling. Host discrimination mechanisms that reduce the fitness of uncooperative symbionts can stabilise mutualism against collapse, but also present a paradox - if discrimination is effective, why do uncooperative symbionts persist? Here, we test whether mutations or fitness benefits of cheating best explain the prevalence of uncooperative wasps in the fig tree-fig wasp mutualism. By combining theory with field-collected data we demonstrate that the proportions of pollen-free wasps of strongly discriminating hosts are reached with reasonable mutation rates. In contrast, in weakly discriminating hosts, the required mutation rates, assuming a single locus, are untenably high, but the required cheater advantages fall within expected ranges. We propose that when discrimination is weak, uncooperative symbionts proliferate until they reach the equilibrium proportion that balances costs and benefits of cheating. Our results suggest that mechanisms that resolve the paradox of uncooperative symbionts differ among host species. |
英文关键词 | Conflict cooperation host sanctions mutualism partner choice |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000403794100013 |
WOS关键词 | HOST SANCTIONS ; PREFERENTIAL ALLOCATION ; STABILIZE COOPERATION ; POLLINATING WASPS ; EVOLUTION ; RHIZOBIA ; SYMBIONTS ; PLANT ; CONSEQUENCES ; COEVOLUTION |
WOS类目 | Ecology |
WOS研究方向 | Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/31397 |
专题 | 资源环境科学 |
作者单位 | 1.Harvard Univ, Dept Organism & Evolutionary Biol, Cambridge, MA 02138 USA; 2.Smithsonian Trop Res Inst, Unit 9100 Box 0948, Dpo, AA 34002 USA; 3.Stanford Univ, Dept Biol, Stanford, CA 94305 USA |
推荐引用方式 GB/T 7714 | Jander, K. Charlotte,Steidinger, Brian S.. Why mutualist partners vary in quality: mutation-selection balance and incentives to cheat in the fig tree-fig wasp mutualism[J]. ECOLOGY LETTERS,2017,20(7). |
APA | Jander, K. Charlotte,&Steidinger, Brian S..(2017).Why mutualist partners vary in quality: mutation-selection balance and incentives to cheat in the fig tree-fig wasp mutualism.ECOLOGY LETTERS,20(7). |
MLA | Jander, K. Charlotte,et al."Why mutualist partners vary in quality: mutation-selection balance and incentives to cheat in the fig tree-fig wasp mutualism".ECOLOGY LETTERS 20.7(2017). |
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