{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T03:43:31Z","timestamp":1740109411417,"version":"3.37.3"},"reference-count":37,"publisher":"Oxford University Press (OUP)","issue":"12","license":[{"start":{"date-parts":[[2017,10,19]],"date-time":"2017-10-19T00:00:00Z","timestamp":1508371200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100000646","name":"Japan Society for the Promotion of Science London","doi-asserted-by":"publisher","award":["15J10728","15H04425"],"award-info":[{"award-number":["15J10728","15H04425"]}],"id":[{"id":"10.13039\/501100000646","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Evolutionary Biology"],"published-print":{"date-parts":[[2017,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Mutualism based on reciprocal exchange of costly services must avoid exploitation by \u2018free\u2010rides\u2019. Accordingly, hosts discriminate against free\u2010riding symbionts in many mutualistic relationships. However, as the selective advantage of discriminators comes from the presence of variability in symbiont quality that they eliminate, discrimination and thus mutualism have been considered to be maintained with exogenous supply of free\u2010riders. In this study, we tried to resolve the \u2018paradoxical\u2019 co\u2010evolution of discrimination by hosts and cooperation by symbionts, by comparing two different types of discrimination: \u2018one\u2010shot\u2019 discrimination, where a host does not reacquire new symbionts after evicting free\u2010riders, and \u2018resampling\u2019 discrimination, where a host does from the environment. Our study shows that this apparently minor difference in discrimination types leads to qualitatively different evolutionary outcomes. First, although it has been usually considered that the benefit of discriminators is derived from the variability of symbiont quality, the benefit of a certain type of discriminators (e.g. one\u2010shot discrimination) is proportional to the frequency of free\u2010riders, which is in stark contrast to the case of resampling discrimination. As a result, one\u2010shot discriminators can invade the free\u2010rider\/nondiscriminator population, even if standing variation for symbiont quality is absent. Second, our one\u2010shot discriminators can also be maintained without exogenous supply of free\u2010riders and hence is free from the paradox of discrimination. Therefore, our result indicates that the paradox is not a common feature of evolution of discrimination but is a problem of specific types of discrimination.<\/jats:p>","DOI":"10.1111\/jeb.13187","type":"journal-article","created":{"date-parts":[[2017,10,4]],"date-time":"2017-10-04T16:06:42Z","timestamp":1507133202000},"page":"2211-2221","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Evolutionary emergence and maintenance of horizontally transmitted mutualism that do not rely on the supply of standing variation in symbiont quality"],"prefix":"10.1093","volume":"30","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4449-1289","authenticated-orcid":false,"given":"Y.","family":"Uchiumi","sequence":"first","affiliation":[{"name":"Department of Evolutionary Studies of Biosystems SOKENDAI (The Graduate University for Advanced Studies) Hayama Kanagawa Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"H.","family":"Ohtsuki","sequence":"additional","affiliation":[{"name":"Department of Evolutionary Studies of Biosystems SOKENDAI (The Graduate University for Advanced Studies) Hayama Kanagawa Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A.","family":"Sasaki","sequence":"additional","affiliation":[{"name":"Department of Evolutionary Studies of Biosystems SOKENDAI (The Graduate University for Advanced Studies) Hayama Kanagawa Japan"},{"name":"Evolution and Ecology Program International Institute for Applied Systems Analysis Laxenburg Austria"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2017,10,19]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1023\/A:1020221609080"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1668\/0003-1569(2001)041[0825:TCOM]2.0.CO;2"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1006\/anbe.2001.1923"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-5193(05)80072-4"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1086\/316994"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1098\/rspb.2005.3273"},{"key":"e_1_2_6_8_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF00450633"},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1098\/rspb.2001.1900"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1461-0248.2006.01008.x"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1098\/rspb.2006.3571"},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1420-9101.2005.01073.x"},{"key":"e_1_2_6_13_1","doi-asserted-by":"publisher","DOI":"10.1098\/rspb.1994.0156"},{"key":"e_1_2_6_14_1","doi-asserted-by":"publisher","DOI":"10.1098\/rspb.1996.0052"},{"key":"e_1_2_6_15_1","doi-asserted-by":"publisher","DOI":"10.1086\/673757"},{"key":"e_1_2_6_16_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1420-9101.2009.01902.x"},{"key":"e_1_2_6_17_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1461-0248.2009.01425.x"},{"key":"e_1_2_6_18_1","doi-asserted-by":"publisher","DOI":"10.1111\/evo.12292"},{"key":"e_1_2_6_19_1","doi-asserted-by":"publisher","DOI":"10.1098\/rspb.2009.2157"},{"key":"e_1_2_6_20_1","doi-asserted-by":"publisher","DOI":"10.1111\/ele.12507"},{"key":"e_1_2_6_21_1","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.ecolsys.39.110707.173423"},{"key":"e_1_2_6_22_1","doi-asserted-by":"publisher","DOI":"10.1038\/nature01931"},{"key":"e_1_2_6_23_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.1208473"},{"key":"e_1_2_6_24_1","doi-asserted-by":"publisher","DOI":"10.1098\/rspb.2007.0043"},{"key":"e_1_2_6_25_1","doi-asserted-by":"publisher","DOI":"10.1038\/nature06455"},{"key":"e_1_2_6_26_1","doi-asserted-by":"publisher","DOI":"10.1093\/jxb\/24.2.259"},{"key":"e_1_2_6_27_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.mib.2012.03.001"},{"key":"e_1_2_6_28_1","doi-asserted-by":"publisher","DOI":"10.1093\/beheco\/arh020"},{"key":"e_1_2_6_29_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0169-5347(00)89123-5"},{"key":"e_1_2_6_30_1","doi-asserted-by":"publisher","DOI":"10.2307\/j.ctvjghw98"},{"key":"e_1_2_6_31_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.1133755"},{"key":"e_1_2_6_32_1","doi-asserted-by":"publisher","DOI":"10.1038\/372257a0"},{"key":"e_1_2_6_33_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.tree.2006.06.018"},{"key":"e_1_2_6_34_1","doi-asserted-by":"publisher","DOI":"10.1086\/383541"},{"key":"e_1_2_6_35_1","doi-asserted-by":"publisher","DOI":"10.1017\/CBO9780511542176"},{"key":"e_1_2_6_36_1","doi-asserted-by":"publisher","DOI":"10.1086\/675859"},{"key":"e_1_2_6_37_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.1420-9101.2002.00441.x"},{"key":"e_1_2_6_38_1","doi-asserted-by":"publisher","DOI":"10.1034\/j.1600-0706.2001.920222.x"}],"container-title":["Journal 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